Transportation Advisory Board meeting to order at 6:01 p.m. Uh, let's see. Today's meeting is a hybrid meeting. The Transportation Advisory Board is in person, but staff are members of the public may be attending virtually or in person. Uh, John Mortonson will be filling in as staff liaison tonight. Um, staff, do we have a quorum? Yes, >> almost certainly with all haven't seen this many people at an advisory board meeting in a while. All right. Uh so our first item of business uh is to take action to approve the minutes for the April 22nd tab meeting. Uh are there any corrections? >> I wasn't there and I'm listed as being there and not being there. >> Okay, >> that's all. Uh any other corrections to the minutes? No. Okay. Uh so I if there are no objections, I will proceed to consider the minutes as amended. So the next item of business is public comment. Uh staff, has anyone signed up to make public comments? No, I'm John. Sorry. I did want to make one. >> Oh, yes. Yeah. So, my name is Mario Cole. I'm a new uh alternate member of the TAB. >> Welcome. >> But yeah, I did have one comment that I did want to make to the TAB. Uh that inspired me to join, which is near parks. There's typically a lot of congestion in some of the project corridors we're actually looking at. get backed up. Especially Front Street when it narrows down to one lane, diverting traffic off onto, you know, Collectors or side streets. Um, one in particular I'm concerned about is Reneer Street near um, Confluence Park. There's a lot of traffic that gets steered off of Front Street due to that oneway turn that you're forced down and people tend to skip around all the back back up on Front Street. Uh, and there's a lot of families and parks. There's also the East Lake Trail running by, a lot of pedestrian traffic. So, I just wanted to encourage any sort of projects that might help calm traffic on streets like that that neighbor parks or experience a lot of I guess shortcut traffic around traffic jams. So, that was the one thing I had to mention though. Yeah, appreciate any help. >> Thanks, Mar. Just just as a point of order, the uh in every meeting from for board member van alternates, you're welcome to make uh comments at the meeting as well. will have a section dedicated towards that. So certainly we welcome your >> yeah input. >> Um also I think for all the new members we're going to have lots of training lots of uh bringing up to speed on what the various uh sort of annual and bannual processes that we go through are. Some of those are looking at things like the um the trip transportation improvement project, the tip and the the capital improvement. >> Yeah. >> And so those are regular processes that we look at and make comments on as well. >> Uh so hopefully you'll find that there are some additional opportunities. >> That was my plan regardless of getting on the board. So make that comment. I don't know. But yeah, it's um I'm happy to be here. Sure is concerned. Yeah. >> All right. So, with that, let's move on to regular business. Uh so, excitement of regular business is welcoming new members. So, we've we've had a little bit of a shuffle here, but that's Let me see if I can keep up with it. Uh so, we have a number of new members tonight. Uh Mario's joining as an alternate. Uh we've also got uh Tessa Harvey joining as a regular member. Uh we've got Dave Wilkinson who's joining as a regular member I believe. >> Fairly surprised right now. >> Uh we got Masalunis who is joining as an alternate and Alli Morton was uh promoted from Paper. Congratulations everybody. Um I want to first say regardless of whether you're an alternate or regular member, everybody's opinion on the board is valued here. Uh so certainly feel free to participate. U there's there are procedural things like when we take a vote, it's the regular members that vote. Generally, if there's not a regular member, if a regular member is absent, we'll promote an alternate uh to regular member for that meeting. uh but these are really procedural things in my opinion the important stuff is that people come and participate and so that's where all the the interesting information comes from and I believe that's what council values as well discussions with them. Uh so welcome everybody. I'm I'm really pleased to see uh so many volunteers come and help out with this. Uh what I'd like to do is is go around the table and uh have everybody introduce themselves so that we can get to know the new members and the new members can get to know the old members and the old members can get to know each other again. Yeah. Um so maybe we'll start with Lamir. >> Hello. >> My name is Laamir. Uh I have been on the board a couple years now. Um I am a engineering student. I will be graduating very soon, like a week from now and starting >> and uh starting right after graduation working in uh construction at a engineering firm. >> Um so I'm excited about that. Um and I am a big transit transit advocate. I have ridden the bus to school my entire five years from Isiqua to Seattle. Ally >> I'm Ally. um was an alternate last year and now promoted um and I work in the human resources industry and what else did we want to share? >> Is that good? >> I don't think that's >> Victoria. >> Uh I'm Victoria. I've been on the board since last year. I'm a walkability enthusiast. Maybe you guys can also say like what part of is >> sure mountain squawk mountain >> old town. >> Okay. Uh I'm Hanni Mlad. Uh I've been on the board since 23 and I live in Isqua Highlands and I'm a commercial director in Sound Transit. >> Hi everyone. I'm Mario Cole. I'm a new alternate member for the PAB. I've been in Nisqua for about two and a half years and I live right next to Gilman village. I'm a huge advocate for all the improvement projects being made around there and everything. So excited to be a part of the board and share that. But yeah, I work for Amazon outside this. So, >> hey, my name is Dave Wilson. I've been in Isqua now since 2015. Although it's the excerpts, I'm actually outside city limits on my uh having dealt with the Swahob Bart road mean times aware of some of the transportation issues ran into my job is as a transportation engineer for wash. So that's my perspective green, but I'm here with resident to lend my insight about what I've experienced. >> I'm Connie Masalunis. Um I've been in Isiqua for 26 years now. retired from Boeing um procurement and I live on the far far west end of uh of Isiqua. I'm like borderline borderline Belleview and uh yeah very interested the same way in uh and trying to see some you know just better traffic flow, better pedestrian safety, bike safety. I'm Adam Fuch vice chair. Uh I first came to Isqua about 28 years ago but then left for a long time. Work on the east coast and come back about 10 years ago. I live in Oldtown. Uh I I guess I'm a bit of transportation nerd but mostly my experience is in other types of networks, computer networks. Um, so I often get the terminology wrong, maybe even translate sometimes. Tessa, >> I'm Tessa. I uh live in Oldtown off Front Street right now, but moving to a different part of Oldtown actually in a month because we're buying a place and only been in Isqua like a year now, but grew up kind of on the Belleview is border, so was really moving back, but I work for King County. My name is Cynthia Crass and since it started in 2017, I think it was the end of 2017 and I been the vice chair and the chair for a while. Um I live um it's right it's the border of Oldtown and Central is I think um right by Conf Park lived there for 10 years but for 20 years I lived next door in Seamish. So in fact when we moved to Samish it was unincorporated Isiqua and then it was Samish and then moved to Isiqua and I studied urban planning with an emphasis on land use transportation infrastructure but I never worked in transportation worked more on the land use resource management side and now I am retired. All right. U so that's the the board members. Uh the other folks will introduce themselves later as uh as their business becomes. Okay. So uh let's move on. Uh the second item of business is chair and vice chair elections. Uh so uh we had um we had a member leave the the board for good reasons. She's now a city council member. Uh so uh that opened up uh her chairmanship. Uh and so for the next uh four meetings after this one uh before the fourth one where we have our regular schedule election, we're going to uh nominate and elect some interim chair and vice chair uh to make sure we have the positions filled. Uh so that's what we're doing tonight. Uh at our last meeting we asked for nominations and anyone interested in the positions of chair and vice chair to let us know. Uh so uh the results of the election tonight will be effective starting in June uh and run until the next election in September and through the end of that meeting. Uh so at this point I would like to open up the floor for nominations for chair. I'd like to nominate Adam. >> Thank you. I will accept the nomination. Give a a quick caveat which is I will not be here for the July meeting. Um but I might be able to work with the vice chair to make sure that it's covered. Any other nominations for chair? Okay. Uh this point I'll close the nominations. Uh would anybody like to speak about the candidates? >> Okay, hearing. Oh, Cynthia, >> I just want to say I appreciate you taking the reigns and doing that. I think you do a really good job and uh you're very engaged and you're very good at tracking and um I really appreciate just want to say thank you. >> Thank you. I cannot I cannot accept most of that praise, but I'm working on it. >> Okay. So, uh with that, uh let's call for a vote. Uh so, we have one member nominated, Adam Fuch. Uh all in favor of electing Adam chair. >> I'm not sure if we've been sworn. Regular members would vote in your rank. Great. >> I am officially >> any opposed. >> Okay. I believe the vote passes unanimously. Uh so I will be chair through the September meeting. Uh now we'll do the same thing for vice chair. Uh so do we have any nominations for vice chair? I'll nominate I'd like to nominate Lumir Maggas vice chair. >> I'll accept the nomination. >> Do we have any other nominations for vice chair? Okay. Would anybody like to speak about the candidate? I've just been super impressed with his like light rail enthusiasm and advocacy and I think he's great. >> Thank you, Victoria. Uh, okay. So, having do we have any other nominations? No other nominations. Uh, spoken about candidate. Uh, so at this point, I'll call for a vote. Uh, all in favor of Lamir Magus for vice chair transportation advisory board. Any opposed? Any abstaining? Okay. Vote passes unanimously. Mayor Magnus will serve as vice chair for the next four meetings through September. Uh congratulations candidates. Okay. Uh quick and easy. Uh so third item of business, adaptive signal control study. uh Marina Bondla, senior transportation engineer, will be presenting tonight again on the adaptive signal control study. Uh tonight we'll look at the W weighing options or the weighing scores, the weights, weights for performance metrics. Uh Marina, please go ahead. All right. Well, thank you um everyone and welcome new members. Appreciate your time. I'm Marina Bond, senior transportation engineer with the city. I'm joined by John Mortonson, transportation engineering manager. And then we've got two Chris's here with our consultant team. Um, Aaron Pierce and then with Iverson Mobility. So today we're going to be talking about performance metrics waiting for the adaptive signal feasibility study. So goals for this meeting are we're going to recap um the study's goals and objectives. We're going to do a quick overview of the previous tab input and feedback we received in the January and April meetings where we first discussed this topic. And then we're going to mo spend most of our time um going over waiting of the various performance metrics which will help us determine the feasibility of adaptive signals in the city. So direction needed tonight is um we want to know if the board supports our proposed waiting of the performance metrics by roadway corridor as we present them. Um so you guys all have this handout. Um this is just for reference as well. I'm going to go over a little background before we get into the details. So right now um in the city our signals work with radar technology for detection for the most part. So what that means is when a vehicle is detected at a signal um that basically um tells the signal to update its signal timing and that's based on the detection technology. Um there are other options like adaptive signal technology that are more um that respond to on the ground uh conditions more uh fluidly than that. So that's what this study is looking at. Uh we're looking at specific corridors in the city and you see them here. So, the ones we're looking at are 17th Avenue, SR900, Northwest Seamish Road, 56th Street, Northwest Gilman Boulevard, and then we've got East Lake Samish Parkway. It becomes Front Street North and Front Street South. Sunset Way, Highlands Drive, and 9inth Avenue. And then we've added one more corridor um which is Northeast Park Drive. The reason we added that is because its operations tie in very directly with 9inth and Highlands. So we thought it would be important to include it in the study as well. So the goals of this uh study are to objectively evaluate the feasibility of adaptive signal control technology on the city's corridors um that are shown in the map there. So the study is split into two phases. We're currently in phase one which is uh the goals of which are to establish baseline of existing conditions, look at our existing traffic patterns, signal equipment and infrastructure and also get input from the board and from council mobility and infrastructure committee. And the final deliverable for phase one is really a high level screening assessment for adaptive signal control technology compatibility that's based on the performance metrics and measures and the waiting that we're going to discuss later today. Uh phase one is going to build into phase two which is a much more detailed look at each corridor um where we're going to actually do costbenefit analysis um and look at implementation considerations for adaptive signal control technology and also potentially other methods for to help with congestion like um time of day signal plans that might be more cost effective. So, I'm going to go over what we talked about in each TAB meeting. Um, in January, we introduced adaptive signal control technology and we got input from TAB about each of the roadway corridors and the issues and concerns they had with with each corridor. So, some input we heard about current conditions is there's a lot of regional spillback and congestion on the arterials. There's recurring delay on key corridors and some operational concerns at specific intersections. Noted priorities were to prioritize local traffic which tends to be east west traffic. Uh manage predictable congestion from schools and uh Swedish hospital. Protect and improve pedestrian and bike access and safety especially at multi-use trail crossings across uh busy corridors. support transit speed and reliability and set corridor specific priorities based on function and goals. So for our second TAB meeting in April um we presented and discussed the proposed performance metrics and their measures and at the end of the meeting uh the board requested that we have a follow-up meeting to discuss the waiting of these metrics by roadway corridor. So that's why we're meeting again today. Um the performance metrics were divided into two types. So we have inputs um inputs to assess corridor suitability for adaptive technology and um desired operational outcomes. So the inputs that we went over were signal adjustability, signal system and equipment compatibility, traffic volumes variability, and then the desired operational outcomes that we discussed were improved bike and ped experience, improved transit experience, improved driver experience, and then future ready and plan alignment. So each performance metric is going to be weighted by a roadway corridor and that's going to provide an overall score for suitability for adaptive signal control technology. So the inputs um are going to be weighted against each other and the outputs are going to be weighted against each other because it's a little difficult to weight them all together since they're pretty different from each other. Um the waiting of the inputs is going to be determined by the consultant and city staff. Um, and it's going to be guided by the review of existing traffic cons uh traffic conditions and system infrastructure. And what we're going to focus mostly today on are the desired operational outcomes metrics um and how we'll weight those per roadway corridor. So I'm going to give a brief overview of what those are um and the aims of each of those metrics before we go into more discussion. So for improved bike and pet experience um the aim of that metric is to estimate the adaptive um adaptive feasibility uh sorry adaptive signals ability to improve comfort efficiency and accessibility for peds and bikes. Improved transit experience metric is um aiming to estimate the ability to improve corridor efficiency progression and reliability for local traffic while managing regional demand. improve driver experience aims to identify the ability to enhance tra transit travel time, reliability, and priority along signalized corridors. And the future ready and plan alignment metric um aims to ensure signal investments remain effective and aligned with long-term land use, transportation, and emergency planning goals. >> Can I interrupt you for just a second? >> Yeah, >> I you probably um all noticed, but I think I switched the text. The driver experience is improving reliability. That's on me. I didn't notice it when I reviewed the slide, but >> thanks for >> Yeah, sorry about that. >> You just like, oh, perfect. Right. Yeah. Okay. >> Yeah. Sorry. So, transit and driver switched. Wonder I was going to ask about that. I was very confused. I thought we were talking about bus drivers. >> No, this is this was my meer. I apologize. >> Thanks. I should have noticed that, too. All right. So now I'm gonna pass it off to Chris and he's gonna go over the weight. >> Before we do that, can we go back real quick? I just had a quick question about this. >> Yep. >> Um, so so we look at these sorts of metrics, we can think about like metrics to track individuals experience and then metrics to track kind of the macroeconomics of the system. And these seem to be oriented towards like individual experience. The two are definitely coupled. Uh but as a a planning a long-term planning thing, we might also want to look at something like a throughput metric. Uh is that something that would show up as as something especially I'd say for uh driver and possibly transit as well for throughput. So I would say that when you're looking at throughput, we we did look at um vehicle throughput when we were doing the analysis of like the front street interchange when you know that was that was something the wash dot lead and it seemed like nothing that we were putting out there was improving level of service which was super confusing to folks until we realized oh but we're serving another 100 cars in the PM peak hour or whatever. So that was a an important metric. >> Yeah. >> For that. Um that I think is a much more qualitative and it's a much more intense analysis. I don't know that the outcome of adding like I don't think it's a desired outcome per se for us to just push more traffic through is I don't know that adaptive is going to have much of an impact on that. So I don't know that I would maybe recommend going in that route to study it in in a lot of detail. >> So So one of the I don't know if you guys had to drive was it yesterday when uh Highway 18 was closed. Several people >> certainly experience a lot more throughput than normal. >> Uh or a lot more demand than normal. Maybe not more throughput. >> Uh maybe less throughput than normal. >> Yes, that happens when there's more demand. Yeah. And so you so you get sort of uh the unusual experience of suddenly there's a demand peak. Does the system catch up with it? And that's where like the the importance of having the additional throughput really comes in in my opinion. And so uh that's just slight issue with with the notion that the throughput is less of a >> I think metric to look at here. >> That's sort of the failure. you get to the more >> qualitative or sorry yeah >> I always get confused with these two quantitative thank you quantitative analysis the the real modeling and computation side of it we can definitely take that into an account and I'll I'll make that in the notes that that is something that that is interested in hearing about um again that is and actually this is kind of a good example of why we want to do this high level first because that will allow us the more corridors we can screen out the deeper the analysis we can do. Um there's also a lot of questions about how much we can actually forecast adaptives ability to do any of those things. Um but we can walk you into those and help and and yeah that is one of the technical outcomes of this is the consultants are going to take all of this and we're going to say okay how are we actually going to do these tests measure these metrics and come up with these answers for that phase two because right now we're not incredibly sure how be depending on which corridors we look at how deep of analysis we're able to do and which vendors we even are able to look at that analysis can change wildly, right? So, >> so I might suggest that just as as a qualitative aspect that tries to capture throughput, you might look at potential for improvement or corridors that are notorious for uh operating underneath the theoretical throughput of the intersections or lanes involved. >> Right? I I would encourage you right now if you're thinking about this, consider that as the driver's experience because I think that will be one of the crunchier metrics that we can get into when we're considering drivers experience and that is going to be at odds with things like pedestrian bike experience at times >> and it may become at odds with transit experience although sometimes those can go hand in hand. >> Yep. >> Right. They can also complement. >> All right, let's go to Laamir. >> I had two. Oh, just as just as a point, what we're doing is we're flipping >> our hands up. Who might stand up? >> So, we'll go to the mirror first and we'll come to >> So, sounds like you might not 100% sure. No but uh a lot of these metrics I think it matters to our discussion of weight like what like how exactly they're going to be um how they are going to be measured because that will determine how much variance there is on them and that determines how much we want to wait them, right? like the amount of like noise that will get in these signals. Like if something is going to be determined by a survey, maybe that gets tweed a little bit less because it's not as reliable as something that's like a numeric analysis. So like I guess I it doesn't sound like you have a lot of that information right now, but like if you could just give us a broad overview of like what kinds of methods you're going to be using to measure these in a brief, I think that would be helpful to our decision. I I do want to put a big I'll say a yellow flag on the field about that too just because the biggest tool that we really have as traffic engineers is modeling traffic modeling and itself all of the research that really has been done for the last 60 like since the 1960s so much more than 60 years at this point has really been focused on those vehicle metrics. So, we have a lot of strong tools for vehicle metrics. Um, and they do always tend to say, "Oh, you should build more lanes." Um, so it will, I think, underestimate some of the impacts or, you know, maybe make it look like there's not as bad an impact to other modes like transit and and um heads. So, those are really hard for us to get quantitative numbers, decimal points to really see. And I would question thoroughly the model outputs for vehicles and if we're actually going to get to see that because as Adam was pointing out, you get you if you have a static amount and then you try to add more capacity, it gets filled. You may have more throughput, but it doesn't actually improve maybe the east west and things like that. So right now the way we are looking at this is we are going to grade them basically on a one to five of five likely to improve, one likely is the opposite like makes worse. >> Yeah. >> And three is maybe could go either way. And that is so we're going to look at it in sort of that spectrum as we're going through each of them. Then that if I hope that kind of answered your question of how we're going to use the metrics immediately to get down to the corridors where we want to focus on daily analysis on. >> Yeah, that's helpful. >> All right, let's go to Mario. So, I know 17th Avenue already has signal prioritization for transit. Would this adaptive signaling lead to more of that for transit like across different corridors like Gilman? because I know there are transit routes that go down Gilman. I don't think we have signal priorization on those corridors today. >> I will have to double check again. I don't think that Gilman has it. But and I and I think that it's not tied to adaptive. >> Yeah. >> Um >> it's a different signal. >> It is a completely different system. The question that we would be asking is and I think we got to this question before as you know the transit routes are decided by the transit agency. The city has a desire for where they would like them to be. You have planning documents for where you want them to be. And there are things that we can do with the adaptive signal to make sure that a transit agency is able to have things like TSP and extra space for pullouts or not have pull outs if that's going to improve their, you know, speed and reliability. There are things that we can do and that is what we're trying to capture underneath that transit experience. So making sure that yeah whatever we do here it is not going to make it so that we can't have TSP or that ESP isn't going to work as well because of the adaptive system. So that is and those are hard things to forecast and they're very different depending on which vendor you use. >> That that kind of leads to my second question too with the future ready plan alignment. I know Sound Transit and other like King County Metro realign their routes occasionally. Is this future readiness aligned with those plans or are these being in considered and like we talked about how we can adapt these signals to like when these routes do change is that part of when these get recalibrated I don't know what the right word would be. So signal timing should get recalibrated on a pretty steady basis. I know that it is a big it's a lot of staff time to do that right regularly. Um and I think the city also found like during the pandemic that the time of day plans they were running weren't serving >> the city in that time point. So I think there is still some corridors. I know through sort of downtown area there are signal timing plans that are working for time of day and I think others are maybe right now running more free and just trying to see if maybe this system can do that and take that off of the >> that's one one area in particular I see as a >> possible pain point in the future is someone who rides the 556 when it gets realigned to go down Gilman through Front Street >> yes >> will be able to move uh through that corridor and stay on track for its schedule because I know a lot of people did depend on that even up into the highlands, right? So, that was one thing I also didn't notice with the transit metrics is they tied to just general vehicle movement, not necessarily like a pure transit experience metric. So, I don't know if there's other metrics that could consider those like specific experiences, but that might be something. >> Yeah, I mean we we are putting out the and again remember the tri the headings are wrong there makes it really confusing. transit driver experience, >> right? Transit experience is enhancing your transit travel time and uh specifically it's reliability. So when you're saying people depend on it to get to the highlands, being reliable means that you can depend that it's going to be there at the same time every time and that it's going to take you the same amount of time each time to get there, right? >> Um and then yeah, making sure that you can have those signal priorities. >> You have all the corridors already highlighted for you. Right. I think it uh it's uh appreciated though the study and everything, but thank you. >> Uh just a quick question. I'm assuming this is kind of falling underneath the future ready and plan alignment, but interoperability with other systems that are pre-existing. >> Yes. >> That you have two single systems that are probably within limited access and then processing and how that integrates and talks with your system. presumably that's going to be incorporated as phase two parts. I we are taking that on now at some level and I'll just because I'm in a room full of transportation nerds we've got able to get all the washed out folks we needed it to get down on a call and we're going to talk it out this like upcoming week I think it's very exciting um it can be hard to get all those folks in a room but we are that is going to be on more of the technical side where we're talking about the inputs because it's very much what is the technology in the cabinet how long has it you know what is the maintenance status of it, how much more upgrades does it need, how do they talk to each other? I don't expect this group to be able to give meaningful feedback on something like that. But that's why we're getting like a room full of wash dot technicians and I have Chris Iverson and Jim Peters and the city staff to really help us inform that decision and see what that would take for those systems to talk and you're and there's also some other metrics on the inputs of if we didn't include those systems how much benefit could we get right >> okay so for all tab members that want to actually go watch the meetings they're all on YouTube January or or April one. There's a lot of interesting info especially on like how adaptive works with like transit signal priority and all that kind of stuff. So we've covered a lot of that in the past. Certainly welcome questions about it. Um welcome new members again. Chris, good luck. Thanks. Um okay so I think we can go on the net flight. Not sure that I'm going to give you guys a background of how we did this as I'm kind of showing you the first corridor. And I have this in an Excel spreadsheet on my computer. So if there are disagreements on here, we can change it. We had taken a very long time to go through the metrics in the last meeting. So I'm hoping to not take your entire evening to get through this. We went through and graded this as a consultant team and then went through with city staff to see if we agreed. found some errors, moved some things around, and this is what we ended up coming up with. This is a uh a paired comparison test. Basically, what you're doing is you're grading a column versus the row. So, where I have an R, the row is more important. Where I have a C, the column is more important. So, in the very first one, we're looking at bed, ped bike experience, and pet bike experience. That's the S. They are the same. going over I'm saying that the ped and bike experience is rated more important on Front Street North than the driver experience. Right? So this is the part right in front of the theater and through your old town. Um lots of folks walking and biking. That's what we rated the row higher. So we can walk through each and every one of these. Um and these will all assign a score. And at the very bottom there's some math that's getting done in the background and we're doing some rounding to the nearest 5% otherwise it looks funky that we have like 40.3% or something. Um you can see what the actual weights will be. I wouldn't get caught too much up on the numbers but if it feels like okay if I had $100 to spend I would spend it you know this way or I'd grade them this way that it feels right for that corridor then we probably got it somewhere close. Um, but if there's changes to the letters, we can do that and I can tell you what the difference would be in the in the bottom. So, going through these really quick, looking down this uh pet bike experience, saying that the pet bike experience is more important than driver and transit. And then we are actually saying that policy plan alignment is the more important is more important than the ped bike experience. That is just a pretty common thing that we you guys are going to see is that we've pretty much rated policy and plan alignment as king. You guys put a lot of work, a lot of comments, a lot of time into those. So we rated those high kind of across the board. Um driver experience again we're saying that the p bike experience is more important um the transit experience is more important and policy alignment is more important any comments on that changes can I add some nuance really quick kind of for a visual the three categories on the left ped bike driver transit can kind of think about it in a way of how the experience is day-to-day. And again, to Chris's point, as you think about policy alignment, what you want to think about is that long-term vision. Um, that's really kind of where that that's why our team weights the policy so heavily. So, it's taking that long-term perspective because we're talking about large potentially large investments into traffic signal infrastructure that will ultimately create a different environment from a traffic perspective. So, I just wanted to kind of put that out there for context setting. >> Thanks. So, so another way to to visualize this would be essentially what we have is a partial ordering actually a complete ordering of all of these things where in this particular case policy alignment is top then bike experience and then >> uh transit experience then driver experience. >> Correct. >> So that's what the what all >> that's how it that that's how these Yeah. So each of these you could do as just you know what is the order of the four things >> you could simpler visualization >> uh possibly I I mean I think that this has a little I think this has some merit because you'll end up getting I think a little bit more fine grained but I do think that that is a really good >> like rule of thumb if we're putting the biggest number under policy it's the highest >> does that make sense for this corridor then ped bike, then transit, then driver. Does that make sense for this corridor? >> It is possible to get like a rock paper scissors thing with this type of relationship, but you don't have any of those in >> there are some where it's just across the board. There's no there's no priority. Everything's important. We'll get to them. It it >> it's interesting that literally that's how the math came out and we all kind of just shook our head and like actually that makes sense. So we'll see if you guys agree or not. But should we move on or I know we have a >> Oh, we have a question for >> one brief thing. This is and the policy alignment is like with the policies of the city. So like the transport transit transportation improvement plan and that stuff right? >> Yes. >> But I wanted to mention in that case especially for the new members that all of these things like transit experience and pent bike experience are included in that plan. So that if that's the highest priority, you're also prioritizing these other things because that's part of the city's long-term plan. A lot of the people on the table have already seen that plan many times, but there's some new people here. So I wanted to make that clear. >> And I wanted I'll add on to that too that there's more than just the transportation master plan. There land use planning. So when you're thinking of policy alignment, plan alignment, future ready, it has a lot of things happening. light rail hopefully in the future. You new um zoning. We want this system to work forever if hopefully at least 20 years or more. So that's again future, not just what the corridor looks like today, but what it's going to look like in the future. Okay. Um, I don't necessarily feel like I should step through each and every one of these columns. Does anybody have a comment on any of the columns or else we can move to the next slide? Sounds like we got some pretty good agreement on this. Great. The rest of this should go pretty quick until we get to maybe we want to get into some deep discussion about row versus column, who wins and who doesn't. So, front street south. Again, this is sort of south of downtown. We do start to get some more vehicle movement. We have access to schools and things in this area. Um, we said the pet experience is still more important than the driver experience. It's still more important than the transit experience, but the policy alignment, future readiness is still more important, the most important for driver experience. We said that that was, and I'm just going to read off the yellow because they're going to be repeated in the green. The driver experience is more important than transit experience on this part of Front Street. And the policy alignment is still the most important. And I heard some some hoping to get some comments there. And then again, we said that the transit experience is less important than the policy alignment. Dave, this is your neck of the woods. >> Yeah, but just kind of a point of clarification actually. Uh, when you say transit experience, does that incorporate bus school? Does it in or is that part of the driver experience >> school buses compared to like >> compared to just transit such as metro, shuttle, >> trail access? >> It's that is an interesting question. I had not envisioned it including school buses. That could be something that we consider though. Um >> All right, let's bring it back for one conversation. Okay. >> Um >> would that change the waiting? >> Good. So, let's just say I'm I'm making a note that transit experience should include school bus trips. Um, I do think that those count differently than driving trips. Still, they act different than a personal vehicle. Um, if we are considering transit experience, including school buses, the one that we had the for was driver experience. Would that then change the transit to be more important than driver? >> Yeah, I would argue yes. >> I would. >> I agree on that. >> I was going to say like the time of day example that you gave it might make sense during certain period of the day where school's getting out or school's letting in >> but maybe not the entire duration because I don't think there's any like Sound Transit or King County routes that go that far south. >> Yeah. They don't go down there. >> Right. which is why we rated the driver higher. Yeah, >> I would argue that like uh if school buses are part of the transit experience that making that more reliable reduces the amount of like single driver drop off situations because that might like I think prioritizing that could have a positive effect overall on driver experience as well. Making school buses more reliable would would reduce the parent drop off volume. >> Yes. >> Also, high schoolers driving to the school by themselves. >> Yes. >> I've been hearing high schoolers driving to school by themselves. >> Yeah. Stuff like that. >> I mean, there's so many forces um making people drop their kids off from school or teenagers wanting to drive to school. But I tend to agree that this could be fairly including school because there's three schools right there just clogging up that area big time. It's hard to get those kids to not want to drive their car, you know, it take a lot more than that, but it's I mean, if we're talking a 20-year plan, it's aspirational. >> Seems pretty important. >> And the school bus depot is right there. >> That's also the depot. Yeah. >> So, it's like all the buses there. >> It's a good point. So you can see the numbers there. If I change that one input um basically switching the winner of transit versus driver to transit, it moves the 20% under transit experience and the driver experience drops down to five. >> So there's an abstract form of the school bus question which is if we had transit on this route, would we have scored things differently? Mhm. So really the question of for prioritizing driver versus transit is does transit exist on that route or not? Which is also a bit of a chicken and egg question because maybe the real question is do we want transit on each of these routes where driver experience is prioritized? And I don't know I don't know what the answer to that is but I think that might be the question. >> Tessa. Oh, I was just thinking I know there's not regular bus routes on there, but also they do have trail direct. I don't know if they're doing it to poop point this year because there's construction on that trail, but to me that's even though it's a small route, that's very important that we prioritize that little bus because of how bad the poo pointing is. And now it's been overflowing into a little parking lot near where I live and they're parking everywhere near us. So any way to reduce the hiker parking too along that route I think is really important. >> Thanks. Dave, do you want transit? Uh I do want transit. Uh however this also kind of folds back into policy alignment and future proofing because there have been concepts put forward that if light rail were to hub that is transit systems would feed into a place such as valley but the maple one in particular would likely use >> put a note on on our side to take a look at some of the the regional transit plans as well. >> So I have went ahead and made the change for transit experience to outweigh driver experience. Um I'm going to ask a question. Do you guys feel similarly about the ped bike experience and transit experience or is the ped bike active user still going to outweigh the transit rider? Yes. >> Going to say yes because it's also safety too like everything like that. I think yes. >> So >> yeah. >> All right. >> So this might come up where we have um driver experience prioritized above ped bike experience like for east like Samish Parkway. Uh so maybe we reserve some of that discussion until then. >> Okay. >> Does that make sense? >> Yeah. I think that makes a lot of sense. Uh we'll then move forward to Sunset Way. Um again, just going really quick through what we rated. We put pet bike higher than drivers, ped bike higher than transit. Um and then policy alignment is still king everywhere. Um the driver experience is less exper less important than the transit experience. Transit's more important and yeah politic for both of the last two. Any comments on sunset and how that was rated looks pretty similar to the front streets. >> Yeah. >> All right for Gilman. I think it is the exact same. So some of the difference I think the discussion that we had in some of the consultant discussions and with the city is that there is a lot of development potential along Gilman. There's plans for more signals and things like that that's going to be kind of incorporated I think into some of the inputs. But when you're thinking of that policy that's your future, right? And like how are these signal timings going to work? >> Okay. I did have a comment >> on like the maximum that we use is 45% for policy. In corridors where there's a lot of planned activity long term, would it make sense to increase that above 45% or is there like a reason we cap it at 45% waiting? >> It's just a math thing. Yeah, I think there may be Let me look. >> Let me just look at the >> Yeah, it is capped at it. It I think just because there's 5% for the cars. I mean, look, we can always overwrite it. and say driver experience zero put it all in policy or I mean we can we can change like I'm not married to the paired comparison method if pad thinks that they want to up something we can change the number of the screen I don't care >> I think for the math you got to take it away from something else >> you do want to at least put some weight on all of these concerns and all of these corers so it's a little tricky >> I I do want to point out that that much. >> The the traffic that goes down Gilman's not entirely consistent either. It's a bit diverse depending on what part you're at. So like there's the East Lake Trail. There's a lot of bike traffic and pedestrian traffic. I don't know if that would come into play with making this more complicated to model, but that's one of the things I see that are difficult with it is like how would you prioritize different sections of Gilman differently? Uh or should they all use the same meeting? That's I think getting a little >> Yeah, I would say that you probably are not going to have adaptive on a part of Gilman and not on a another part of Gilman. So, you want to rate it all the same, but then keeping in mind there are pieces where pad bike performance is really important and then there's pieces where people really want to get out of the target and turn left, right? Like there's there are this is this is the traffic engineer's dilemma, right? Is you have all these conflicts that you're trying to manage in space and time. >> Yeah. >> Thank you for answer. Thank you. >> All right. Sounds like we have agreement on Gilman. Oh, we're already moving along. Perfect. He's like Seamish here. We said, all right, I'm just going to brace myself that driver experience is more important than the pet bike experience. Um, I'm going to come back. I'm going to listen to the discussion. I can explain to you why the consulting team decided that, but we're not married to any of these values. Um, then transit experience uh is less less important than pet experience. And then policy alignment's king all the way down. Um and then driver experience is more ex more important than transit experience. So we are getting drivers as one of the more uh prioritized mode. This is one of the biggest commute corridors in the city. You see a lot of vehicle traffic. there are trail heads and pedestrian crossings that exist on it. So, don't want to completely ignore that, but I'm curious to hear what you all have to say. Uh can you so just to shed a little more light on on what you're thinking in terms of uh specifically pet bike versus driver uh can you come up with like a specific tradeoff like an intersection where you'd be looking at specific conflictive so I mean the go-to one Adam is going to be what if adaptive always gives more green time for the major through movement now you're sitting at a trail head and instead of waiting for 30 seconds, you're waiting for a minute and a half. Or maybe it just thinks there's so much traffic, it's going to skip the PD phase for a couple of cycles and you're waiting even longer, right? Like there I don't maybe scoops would do that, but I don't know that like there's differences in each of the systems and how they do that, but that is sort of the trade-off. You're literally giving time to cars, not pedestrians. and the pedestrian has to wait but the cars get to go. >> I can I can elaborate a little bit of an example. So I had I I was the city of Belleview uh traffic engineering group for uh in my previous role and Belleview runs a fully adaptive signal system called Scats. Um Scats is very interesting because it actually because of the way that the street grid lines up in Belleview, you know, it's kind of it's more like a like a honeycomb grid than is you had corridors that essentially talk to each other. So, it's a very cool technology. Um, but because they talk to each other, they're able to sense how loaded the traffic is in any direction. So, you may have noticed, for example, if you're in Belleview driving on 148th up and down, you know, you might get a big green flow um during certain times of the day. What in the background adaptive does is that it essentially is tracking in real time that flow. And so the way that SCATS specifically is built, the technology is built, prioritizes that type of vehicular movement, which means that if you are trying to cross over 148th during those high rush periods as a pedestrian, you will have to wait longer because the system prioritizes vehicle movement. It's not to say that you could tweak it, but that's just the way that Bellev approaches it. So when you're thinking about adaptive potentially in Isiqua, you could come up with a similar type of uh scenario where you have large traffic volumes maybe in the afternoon and an adaptive, you know, with a higher weight to drivers, you'd be able to, you know, move the traffic in a more efficient way, move the vehicular traffic, but that would also potentially be the detriment of pedestrian activity. Mhm. So that is that's a very common trade-off that you'd see in adaptive systems in general. >> It's good kind. >> So the only concern with that and it makes sense when we're trying to get traffic flowing, but the longer a pedestrian or a bicyclist needs to wait, the more temptation there is on their part to try and dodge it and just go ahead and cross. And so I'd be concerned about the safety issues associated with with that um on on and it anywhere really but on East Lake Samish as you were saying there's a lot of corporations down there and there's a lot of that traffic. So is there a way to kind of balance that or limit that to a certain extent because that's what I would be afraid of. I mean let's face it we all see people just going against the cross sign. I mean, you know, it's going to happen. >> And I'm pretty sure that most of the vendors that we're looking at will have a knob that we can turn. It's not but, you know, like programming that we can put in place that blocks it from going too far in the, you know, giving more time to to cars. The more you do that, the less feasible it is. We have an input sort of metric where we're looking at the ability for adaptive to move signal times, screen times within those windows. The more variability, the more you allow it to turn knobs, the better it's going to do, but it's you're going to have more of these unexpected results. And just for example, the city of Seattle turned theirs off because they were having issues with pedestrians on Mercer, >> right? Like as one of the issues that they Yeah, I think it's Cynthia's next. >> So, I'm a little confused and this is very specific to this corridor, but because there is um a trail a pedestri quite extensive facility, the conflict is going to be with the other routes because they're going to be going the same direction. So if it's green when you're on the trail, you're parallel to this segment of the corridor that we're studying. So in the end, they're going to be >> there is a crossing on a trail uh close to I90 for the trail that goes up. >> That one there's there is the one. >> Yeah. So, and I also I want to point out that you're absolutely right and the big crossing is going to be across like 56th um northwest Samish. >> Yeah. >> But that's at the intersection actually is at the signal. Um so the signal is >> they're interrelated, right? You can't really decouple then completely the corridors because they do cross. So there's a big crossing right there for that trail system. And also as you have that trail that's running parallel, it creates pedestrian demand. So if you're work, you know, on that trail and you're going to use it to go, you know, shopping at Best Buy or something, then you do have to cross at some point to get up there or you're going to breakfast or, you know, I think there's a McDonald's on that side. I don't remember exactly. >> I just don't think that's going to be the dominant the onlybody walking to that. I mean, they're walking because they have to. They're not I mean pleasure walk. Yeah. >> Pardon? >> It's not a pleasure walk. >> Yeah. Um but I do see the main one being the I90 crossing. That would really be the only time this is a real question. Otherwise, you're just you're going with the flow. >> So, I I've got a couple thoughts on it. So, you're absolutely right. The at the I90 ramps, that's one of them. And then the next one I would say is at 56th even though it is technically crossing 56th right now. It does impact East Lakes Mammish Parkway cuz right now when the walk sign is on there is a no ride on red >> light that comes up. And then when you go up to 51st, then there's another if you get there and you're on your bike and you push the button and you have to wait for what feels like forever and you'll see a lot of bikes still crossing because right now it prioritizes the left turn movements. >> That's true. >> So it still went >> Yeah, that's true. >> Yeah. Wanted to point out those ones. >> It's a good point. >> And those are awesome specific examples that we should dive into and talk about. you know, what do we want as a prioritization? Because I think that's kind of what we're getting at tonight. >> But I want to go to Victoria next. >> I just had a quick question. I meant to look up and I didn't. Is this transit is low because there's no transit. >> That's the Yeah. >> Not much, but there's some. >> So, we're calling that like a huge commuter corridor, but we don't want to like encourage more transit. >> I I don't know. transit just seems really low for a commuter corridor. >> It's I think it's less so about encouraging and more so about the existing Yeah. What's there now? And again, kind of going back to the policy. >> Yeah. >> You know, the pol that's why policy is so heavy on >> for the long-term vision. But I guess since we were getting into the weeds with the pedestrian stuff, is this new signal prioritization uh program, is that compatible with like having buttons to tell whether or not there's a pedestrian there and then change the priority depending on whether or not a pedestrian is actually standing there? Because I know in Seattle they don't have those buttons at all at most of the crosswalks. But >> so yeah, I you're saying the always serve versus I'm pretty sure there are pedestrian buttons at all these crossings. >> Yeah. >> I don't think that the system is not independent, but what you're asking basically is Seattle in some locations always serves a walk sign regardless of if there's a call. you the button is just the way the signal is hearing or you know seeing a pedestrian. It's >> Yeah. >> Yeah. I guess that was just that's kind of relevant because like if you are expecting I I guess maybe it isn't but I guess that was just my question because that kind of solves some of the conflict between whether or not we're prioritizing pedestrians because that means if we are doing those systems there then you're only prioritizing pedestrians if there's actually pedestrians there. No, >> he's saying you could miss this whole you could >> you can hit the button and wait for >> wait extra cycles. Oh, I guess my my point is I'm guessing that with signal priority, you can as one of your factors consider the fact that like you don't need to prioritize cars that much higher than pedestrians if there's already not very many pedestrians there. I don't know if that makes any sense. >> One shows up every 15 minutes or so. Yeah, >> there's already been enough headroom so that you were able to move 500 foot >> on smash and then the pedestrian doesn't have to wait because that interruption is only every approximately 15 minutes. And I guess maybe that's part of the adaptive side of things. As you get more data, you can adjust the model and >> it can be tweaked and changed over time. Similar with policy alignment. >> Yeah. And different vendors, different algorithms are going to be better or worse at doing that. Um yeah, then I would say in the extreme side of things there are and I've not seen this in in it's timing, but I have seen cities where basically if you have coordination, if there's a PD call, it throws the entire system out because they're not really planning for any pedestrian calls and the pedestrians need a lot longer to cross. So all of a sudden now your whole corridor is no longer time. It takes it a few minutes, 5 to 10 minutes just to get back into coordination and then if there's another pet call and that time we're on another streak, then you're off for another and you know before long you've eaten up your whole peak hour. So like so can we boil this down to actual questions about prioritization. Uh I want to start out with uh East Lakes SM Parkway 56 the lakes trail east lakes trail there that's a heavily used bike and pedestrian path. Uh so I think the prioritization question would be do we want to increase the crossing time for bikes or pedestrians there in order to increase or decrease the trend the corridor wait and see >> for vehicles >> for vehicles >> the maybe not increase the time but that they have to cross because I think they have enough time to cross from what I've seen but expected They spend crossing. >> Yeah. The weight time to cross. >> Yeah. >> Which is that essentially intersection level of service? Is it the same metric that we use for other things? >> There is not a great There is something, but there's not a great intersection level service for pedestrians. >> Okay. >> The highway capacity manual tries its best. Um, but it's kind of laughable. Um, >> I would just think about it in the if I wait, am I would I be willing to wait 30 seconds, 1 minute, a minute and a half, how long until, as Connie pointed out, I'm just like, I'm never going to get a walk signal and I just go, right? Like, I've done that. Sure. Um, and I do want to just also say I I love that we're pointing out specific parts on this corridor that are of importance. I also want to just make sure like we do want to keep this at a corridor level, not at an intersection level, because we can't just break out pieces of them and say, "Well, at this intersection, we don't want to have we we don't care about vehicles. We really care about pedestrians. And at this intersection, we really care about vehicles and not pedestrians because we have to apply this technology to the corridor in order to get an any results that matter. >> Right? And I think when we say we're going to apply this prioritization to the corridor, what it means effectively is, you know, this intersection and probably the uh Preston is Preston Trail crossing, you know, where East Lex becomes Front Street. Those are like the major >> drivers. and any >> not not exceptions that those are the ones that are going to feel the brunt of the prioritization decision with the mandatory right >> and the to consider just again how these are going to be used we are still going to say okay there's a chance that if we do adaptive we are going to increase pedestrian weight times and we're still going to have a score for that and the way it is right now that's 20% of the overall feasibility score for the outputs now if we say there's a chance that we're going to see improved driver experience, that we're going to actually see less delay or more throughput, something that we can measure to show that driver experience will be better. That is also going to be graded and it's at 30% of this overall score. So, we're not necessarily getting to the point where we're going to say, oh, 2 seconds of extra delay is, you know, not enough savings for a vehicle to delay a pedestrian by 10 extra seconds or something. It's not we're not going to get to that level of of analysis at this point, but just thinking of does this seem right as far as the waiting overall. >> Yeah. So, when I look at again that specific intersection, sorry. Uh, one of the things that this invokes is thought about what's the future of like the bike network in the region and this is a pretty major connection between like is Redmond uh which I think a lot of people already use that as a commute and we would like to see a lot more of that because it really you know takes the pressure off the rest of the system and satisfies a lot of our goals for environmental uh improvement reduction greenhouse gases although I'm not sure we're measuring greenhouse gases coming from humans anyway u so so I think for those reasons I would I would be wary of of downrating the pen and bike experience on the corridor. >> I agree. I would switch the driver and bike on that. I did just switch the driver and bike and literally all it does is it switches the 30 and 20 and >> so the driver experience becomes 30% of the or sorry 20% of the overall score and the pet pad bike experience becomes 30. I don't >> I think one thing to mention too is like the transportation improvement plans could also drive an improved pedestrian experience. So having the policy alignment weighted highly could account for a lot of the protected rideway for um the East Lake Trail because I don't think it's so much of a signal issue. is just like when people are trying to turn right and someone's trying to cross. Like I've almost been hit there myself and I go to the dentist right where that old Costco crossing is and you have to wait there forever. But it's like if if people are trying to hit their fastest straw time, they're not going to stop at those lights crossing. But I would argue again it's more like no turn turning on reds type thing, not signal. >> Yeah. And people have been hit there in the past. That's why they have the turn on. >> I've been inches from getting hit >> from a protected device. Yeah, it certainly has. >> So, as a followup to that, are we comfortable with the transit experience column? Any changes there? So, just the only change that I've made now is swapping the ped and driver experience with that. The It sounds like more supportive. So again, if we had transit on the route, would we have scored it different? >> Yeah. >> To put transit on that route. I mean, >> okay. >> It's not in the future. >> Yeah. >> There's a reason. There's a land use. >> It's not going to change anytime soon. return. >> And I could see looking at the policy alignment considering, okay, in the future there's going to be a light rail station somewhere in Isqua and there's going to be a lot of riders in Seamish who are probably hopefully going to be taking the bus to the light rail station. So I think they can still consider transit for the long run instead of the short run. >> Yeah. And that's part of like you can change the priorities over time. That's one of the advantages of this this technology is it's mostly software. It's very easy to change software or relatively easy compared to infrastructure. >> I just generally hate to see transit rated at the bottom for anything like that does not feel good. But I understand the reasons. >> Well, wait till you see the next slide. >> Yeah. >> Sorry guys. Um, okay. So, again, and we can change these and we can see the numbers change in real time. Um, this is northwest Samish Road 56. Part of the um thought here is that there weren't a lot of um generators or destinations on the north side that were creating a lot of that crossing. A lot of those crossings are happening at East Lake Samish to get to the trail system. Um and again this is a pretty heavily vehicled route even on weekends to go shopping at >> people don't walk to Costco right >> I' I've biked to Costco I was very tired >> get a hot dog >> region bakery there has amazing custard buns >> there you go >> anyway so uh before I jump into questions and things I just kind of wanted to run through the there is a a lot of weekday commute traffic and it's very directional in this area as well. We've talked quite a bit about uh that with signal staff at the um city as well. Um and then again we've got you know even transit experience outweighing pad bike experience on this. Um and then policy is still king. I was going to mention the same thing you pointed out which is there's not a lot of crossings and where there are crossings I would argue we have the fully separated like crossing at big ring bar and there's a lot of places that already are protected pretty well any improvements would be like policy improvements essentially to make the pedestrian experience any better. >> Thanks for bringing that. Yeah, I have forgotten to mention the dread separated. So, I appreciate that. >> Okay. >> How much transit is there along that corridor? >> There is a >> I think there's a new realignment that 203. >> 203. >> Okay. >> It's like King County. >> It's like a circulator >> Costco route. So, how do we feel about ped bike experience being the 5% in this? >> Yeah. >> Mhm. >> Seems right. And then transit is the 30. So, it basically is just left to right on the side in priority. >> Okay. >> Good. Okay. I I expected there to be more more feedback on that. That that went a lot better than >> that grid separation. >> It helped, right? Yeah. >> If you go under the bridge there, >> okay, now we're on to 17th Avenue, also SR900. Um it's a state corridor. There's quite a bit of transit on um SR900. This is one of This is the access for the park and ride. Um there's some trails across to boardwalks and things. Um we Yeah. So we did >> walk through this. Um it's also a really big commuter corridor north and south through the city. Um so driver experience we have rated higher than the ped bike experience as far as uh waiting goes. And then we rate rated transit experience more important than everything except for policy alignment and future readiness. So again, future readiness is king. That's what we we rated higher across the board. Any objections, questions, comments on the way we waited the priorities here? Yeah. So, I think last time we talked about that uh pedestrian crossing at Gilman 17th. >> Yes. >> Where they're crossing six lanes, seven, eight lanes. >> Eight lanes. >> It's a lot. >> A lot. Yeah. >> And yeah, it's a very long crossing and you know on a nice day there are lots of people that hit the button. Um, so I think the result of this would be basically we're saying we're going to avoid allowing as as frequent crossing as there is now or potentially reduce the rate at which pedestrians are going to slow down that. >> We're going to rate that as a less important outcome. Yeah. like being able to reduce the time that folks are waiting across that where that's going to be a less important outcome than improving the throughput down SR900. That is that is what this is saying. Yeah, this one almost feels like we need more not not for adaptive signal but other investment, >> you know, supporting the pedestrian and bike experience across the >> um so I kind of wonder about the secondary effects of whatever we do in this corridor with adaptive signaling in terms of investing in you know alternatives like bridges or whatever. This also might be a given for this group. We all seem to know your stuff, but the crossing time will still be long enough to allow a >> Yeah, >> it's it's important to it's important to clarify that >> pedestrians runners only. >> But I've, you know, I've I've had conversations with folks where, you know, simil similar types of projects where they're saying, "Well, does this mean I won't have enough time to cross?" So, I just want to make that clear. I guess there would still be enough time to cross. >> We only cross this street on a bike. >> Yeah, scooters only. >> So, how does that take into consideration if they're going to be like traffic improvement projects given the link when it comes? We don't want to invest two times like giving that priority to the pedestrian and bike. Yeah, I think the this is going to be in your future readiness of how well this is going to be able to work with that change in the future, right? This is likely going to be the main access point in and out of the light rail station for vehicles who are maybe picking up people, buses who are transferring and things like that as well. And yeah, people walking to and from. So I would I would put that underneath your policy alignment, your planning alignment more so than specific modal priorities of just saying that is the most important. Um >> yeah, I think that does that answer your question? >> So once maybe you do some of those traffic improvements and you get the pedestrian bike lane sort of protected, that changes the whole equation, right? Like what we had on which which street I think a couple of slides before that >> east yeah exactly but I don't know if the link is going to even reach there in terms of improvement project >> another way to look at that would be talking about what's the investment horizon for this particular project 20 years >> I mean if you can get 20 years of signal timing out of it I think that's >> pretty good >> so most of that's going to come I mean it's going to likely I mean if we do it right and we choose the right corridors hopefully it just stays on well beyond that but >> yeah agree >> there's opportunity to do further investment certainly in the next 20 years though so we don't necessarily need to consider all that >> right >> I I just kind of have a question but this is you know the intersection of two main corridors right Gilman and and 17th um and I I don't recall I'd have to go back and see what the scoring was um and how that correlates. But like that particular So there it says pedex biking ped pet bike experience is 30%. What is it 5% on n on 90 900? >> Yes. >> So how do those two things interact? Like right now that like you say that crossing that ped crossing um I think they I think the light gives it like 30 seconds maybe a little bit more for pedestrian crossing. When it does that typically depending on the time of day it shortens the amount of time that you have to make a left turn from Gilman y >> onto 900. So it it it just seems to me we have some competing um you know issues here and I you know it's maybe getting into the into the weeds but you know how do we how do we reconcile that >> these are the the traffic engineering she needs. Yeah, this is this is why I say traffic engineer to time lords because we are managing space and time, numbers of seconds, how much space you actually have in the intersection and all the competing modes that want that space, right? So yes, absolutely you will. If you are choosing the driver experience over the pedestrian experience, the outcome is that that left turn may not wait as long, >> right? But the pedestrian waiting to cross might wait an extra cycle or whatever to get that walk and signal. >> That that answers it. Thank you. >> I just feel my country says priority is always for pet and bike from a safety the most vulnerable. >> Yeah, exactly. I guess I was I was wondering um along with along that question's lines when we do have an intersection how like because a couple of these cross each other which corridor is going to be considered when two corridors cross because sometimes the crossing ones have different priorities and obviously that matters a lot. Think of it as the the corridor in question as the through because if we go through we may find Gilman isn't feasible and then the SR900 you know system would overlap would take over. Sorry. There are considerations when we're looking at which system to use and which technology and the feasibility of the corridors when they cross. Some systems are great when you have a bunch of intersecting roadways. Some of them are really only good when you have long corridors. Um, so that that is taken into account on the input side more than the output side. Um, >> yeah, makes sense. Thank you. So, I did a little test on my computer here, and I will say that if we were just to rate the driver experience to be less important than the pet experience, it moves that 20 over to the ped bike and driver experience becomes the five. We could also rate them to be the same and then they would literally be 1515. H >> I like that. >> The same on this. >> Yeah, I like that better. >> All right. >> I was going to I was going to mirror that sentiment where there are even though not a lot of head crossings, there are a lot of people that live on the other side of the highway trying to get to the transit center. Even though a lot of the traffic might go parallel, there is an increased demand across the road >> as development comes. So, >> I think I think fairly balancing driver and pedestrian makes sense in regard. >> Perfect. I love that. That's very well said, Maria. Thank you. >> All right. With that, it looks like we have some agreement on 17. All right. Highlands part. I said it existed. here got basically no priority except for the future. >> Um so again a little bit more why we we did Park Drive. It feels a little different than the 9inth and um Highlands as far as maybe priorities go because it's a little bit different land use out there. It feels like it's a different corridor, but the signal timings and the cabinets are very uh connected to the couplet. So if whatever we do on the couplet, we're going to need to also expand up to park. So try to keep that in order to get that interoperability to work. Um think about that as you're as you're looking at these. Um okay, so here we said under petted bike um is less experience or less important than driver experience. This is a a pretty big corridor for drivers with the couplet. The transit experience is less important than the ped bike experience and policy is king down the line. Um and then we're saying driver experience is more important than transit experience. So we end up with all three modes being equally weighted. this the way that we've done that. >> So, I do live there and I think putting those in one group may not serve the purpose because Highlands Drive is different than Northeast Park Drive given the number of kids in the school area and the lack of patience when it comes to crossing those walkways. So I think we need to Highland's drive is there's a lot of transit there but I think when you go on the northeast part drive there's no transit there. >> Okay. >> Yeah. >> Yeah. This rock paper scissors thing is is kind of weird. >> Yeah. >> We don't we don't actually have a ordering among things. And I think it's because this says driver experience is more important than pedestrian which I don't agree with in this core. I think it's similar to like sunset uh where a lot of people are walking a lot of people are out local things >> using alternative forms. I was going to say make that much sense to me why why is the driver experience more >> I think in the discussion there's a lot of north south throughput on these corridors given the couplet right now also the hospital was a lot of discussion and sort of the queueing that happens there in and out of the hospital and sort of that variability in the well variability but also predictable variability in the um in and outs with the shifts um it's also major emergency route to and from the hospital. These were some of the the discussion points that we came up when we were waiting them on the on the team. It doesn't mean that any of these opinions were right. >> Let's see. It does feel like this is three different >> study areas. It is really hard. >> Hospital, north of the hospital, and park, they all feel like three different Yeah. So, I don't know what to say. Maybe that's how you end up with the rock, paper, scissors because >> Yeah. And it's and it's simply a product of >> Yes. It's they're different land uses and there's different services, but the signal timings are so interrelated that we can't really break them. >> So then is there really you really going to get anywhere? I mean, is this maybe not the best area for >> Don't jump to the end. One what job will I have? You just saved us some money. There you go. >> Yeah, I was gonna say I think the couplet there's a wide variety of mixed traffic, but when it comes to Ninth Park, I do think pedestrian traffic would make a lot more sense to prioritize just given the amount of walking people do down that avenue. There's a lot of shopping centers. >> Things like that might make sense to separate these. >> I have a question. So, in this area, there's going to be a lot of development with the I always call it shelter. I I'm not sure what it's called now, but up there. And then the lakeside development. I think it's going to happen pretty soon. So, knowing that there's along that corridor that there's going to be a lot more residential, does that change how anyone would think about the couplet part of it? I kind of think u that a lot of the places that we would be prioritizing driver experience are where we have a lot of traffic going through rather than from so like development in that area would actually make me want to prioritize the bike experience more just to get kind of more of the smart growth aspects >> okay on my computer so maybe I'll just jump in and share. This is like the last corridor. So, I'm just going to jump in because I feel like I've just copied the um So, I've copied the slide and I am deep into Excel. So, Highland Park and Highland 9inth and Park are now the number two is just Park Drive. You can see I've got it up in the top. So this one, if we wanted to change, if we were just saying like the couplets and highland, would we still say that driver is more more important than pedestrian if we broke park out? >> No, I'm seeing a no. >> I don't think so. >> I don't think so. >> Okay, so if we change that to R, does that feel better? So now we're saying ped bike experience is more important than drivers and transit. >> Could you zoom in a little bit? >> Oh, sure. >> Control plus >> on a Yes, thank you for the shortcut. >> Of course it's not going to work right. >> No, >> is it? >> All right. Um, >> there you go. Thank you. >> And you guys don't have the screen at the bottom, so that's perfect. Does that feel more close to the right waiting? >> Sorry, I thought we were on park. That's Highlands. >> This is Highlands. And um, this is the couplet. Park is next. I'm just looking at this one. So on Highland, on the couplet itself, it sounded like we still wanted to rate heads higher than >> Yes. Yes. >> Okay. >> I I think it's fair to make this. I also want to point out any improvements you make to transit given the waiting that we put on the inputs also benefit throughput for drivers because they're all going past that transit center anyways, right? So >> yeah. And so here we've got transit is more important than driver experience. >> Yeah. Just the Highlands being like an urban village model just makes no sense not to prioritize ped bikes. >> Guess we're >> Yeah. >> So and maybe this I'm going to I'm going to do the thing where I don't try to zoom on my touchpad. Um, if I do that same change, are there other changes we would like to see for park drive? >> I guess transit you could swap with driver because there I don't think there's any transit. >> Yeah. >> Yeah. >> Unless transit has the school bus. >> Oh, yeah. >> There's slightly less school buses going up that way, right? or no what else is up there besides Grand Ridge Elementary? I don't even know. >> Just just the one elementary school, right? >> Yeah. >> Okay. >> I just play devil's advocate real quick of I don't think we've prioritized driver in any of them and I just wanted to like throw that out there and make that known. But I'm also mostly at drivers. uh sadly um with small children. So I just I don't know. I I feel like that we could have a lot of angry residents as well if none of the streets have driver. So maybe there's more of a balanced approach on some of these. But that's just my single opinion. I think this I don't live in the highlands but I think this particular corridor does not have very much transit and does so at very least I think that driver could be prioritized over transit if she gain because that's like the one this is the one where I would say pedestrian because there's so many kids and so many families and this is one I would definitely They had bike over >> there. Three others over here and then over transit. >> Oh, okay. Yeah. >> Yeah. Yeah. >> Yeah. I think we said we said Seamish Road and 56 was >> driver at the top of the car. >> Yeah, that's true. >> The Costco one had uh >> that's transit. It's >> I think that one had transit at the top. >> Driver. >> Transit then driver then. Yeah. >> Well, it's not saying we're not prioritizing them at all. just has a lowerity. >> Yeah. And I we're not this is not a modal priority decision from like a transportation planning, right? We are trying to weight the effectiveness of adaptive in their ability to improve or not >> the different modes. >> Yeah. Does that sort of improvement apply only to the traffic signals or also the pedestrian crossings that have beacon flashes? You that's an interesting point and again I think this is getting more onto the inputs on what kind of systems are out there and how well they work. those flashers. Some of them I think the uh Oh my gosh, I just forgot the name of the road. The >> sun >> tiger. No, the what is this? The angled one with the beacon crossing on Front Street. >> Oh, >> is that dogwood? >> Dogwood. >> I was like, I have an animal, but for some reason I'm getting tiger and it's not >> Yeah. Near the real crossing. >> Yeah. Like that one I That one could possibly get timed if we were able to do progression on Front Street. back. I get timed in. But the RFBs where you hit the button and it just starts flashing. Those aren't you can't time those. And that does make timing for vehicle progression on something like Front Street where you have a lot of RFBS more difficult because you're going to stop between the signals more often to allow this. We hope you're going to stop more often to allow those pedestrian. >> Yeah. Now, what I was trying to get at is especially when it comes to the darker days and the sunset times, we have especially on the Northeast Park Drive a lot of misses miss like accidents like >> near misses that drivers do not see kids and I'm looking at improving that whole, you know, system if we're going to use that approach. But >> yeah, again for safety. >> Yeah. And I would warn you against expecting too much for safety improvements when you talk about adaptive signals. >> Yeah. >> It's an it's a piece of our analysis and so far surprise guys, I haven't really sent this to you yet. Um, we've done some research into all the different studies and they're basically all they come to whatever conclusion they seem to have set out to prove and they're all over the map. So, we're just saying regardless of the type of crash there is, we're not confident adaptive signals can do anything to prevent them. >> Okay, >> good to know. >> Or make them worse. So, all right. So with this park change now we are at pet bike then driver then transit policy still important. So we let me see if we ended up we did end up a little bit different. We have transit more important on highland. >> Yeah. >> Okay. And we'll have to figure that out on our side of how we split that analysis up. It may just be if it doesn't work on park then it doesn't also work on highlands and ninth. So >> I did want to make one comment. I see the transit center that we have going towards on 17th the Isquaw one like I see the same thing being something we could try to build due to policy improvements long term for highlands like making signal prioritizations like that for transit and other transit options but I think those go towards other improvements not necessarily signal changes. Yeah, and I do want to add since you're new to the tab, we actually last year went through a big process where we revamped the comprehensive plan to um go towards having transit signal priority and right now we just don't have corridors that have the volume of buses to actually meet the guidelines for it, but it's something that we're watching and planning for. >> Yeah, that's good to hear. >> But I think that kind of goes towards a lot of the alignment being towards policy. makes a lot of sense in that regard. There's a lot of improvements that we're talking about that would actually be covered not under improving the adaptive signaling for pedestrians, but by improving policy on that area. Right. >> Great. I have a little summary slide. This will update. It's not going to have park um separate, but this is where we ended up. It looks like for front sunset Gilman pretty much the same. A little bit of a change where we put driver experience ahead of transit experience on East Lake Samamesh. And then Northwest Seamish 56 transit then driver then ped. It's a little bit different. Then we have 17th Avenue where we are sharing the ped bike as an even with driver and transit. And then again the Highlands and 9inth we're saying ped bike is still the most important driver experience is less and then transit with future plans being objections. Would we like this? Do you want to add something? We just need to make sure we add the row for park separating. >> Oh yeah, we we will. It's over here. It's just on a different sheet and I haven't >> for the the Highlands route. We uh Does anybody think that we could do an even waiting for transit and driver since there is the hospital traffic there? I'm wondering with your point earlier Mario about driver benefiting from transit experience especially on that coupled you're going to get throughput for transit there's no dedicated lane as far as I'm aware of Ford bus or other transit forms so I'm guessing they're going to kind of work in aggregate >> if they're both weighted towards regional transit through the highlands like they would both benefit from it I think that was kind of the comment I was making earlier on though is like we don't have a true like transit exclusive >> way to measure how that's improving. >> Yep. >> So, >> if we do change that, I mean it just shares the points evenly between the two. Is that a change that the tab wants to make? Sounds like anybody have major objections to doing that change? >> I don't strong >> obviously I don't feel strongly about that. there's potential to say that we want to sort of encourage transit ridership over driving especially in areas where we expect with hospital traffic being uh getting us to saturation on the network there. So that will be my only objection but I don't actually see this waiting effectively changing what we're going to do anyways. No, I don't I don't assume that it will because the adaptive signal is not going to rule out whether or not you would be able to do like other transit improvements like that. I was also going to mention too again just reiterating the importance of the policy alignment on these as well when you're talking about future future goals and transit movements and everything the the heavier weight let's just say for the sake of argument you know I don't have the the the map pulled up but um if for example highlands 9th had a really strong plan of emphasis there's policy language there was lines on the map and they said this is going to be king that means that when as we were assessing this that waiting goes into the entire scoring. >> Yeah. >> So, you know, we are accounting for that future change as well through the policy bucket. >> It's additive. >> Yeah. It's exactly it's additive. >> Cool. Great. And I just wanted to say thank you. It's been like a pleasure to present to TAB um three times and I think uh it was it was I can't remember who the suggestion came from but I know that you guys really strongly suggested us coming back and going over these waitings with you saying that there were changes and that and that we should rate every one of the corridors separately. You definitely had a very big impact on the outcome and the methods of the project. So thanks a lot. I appreciate it. >> Yeah. Thanks Chris. I really appreciate you going to you know making this stuff sort of as objective as possible. A lot of times that the side effect is you just really get to the point of thinking about what really matters you know comparing things that you otherwise wouldn't have compared >> making tough choices. >> Sounds like that a useful exercise for you. >> Thanks. Appreciate it. >> It's great for us too. Thanks. Uh Marina, do you have everything you need? >> Yeah, I just um one last slide. I just want to let you guys know our next step is to go to the mobility and infrastructure committee. So we'll take the feedback and the waiting um feedback that we got from TAB and we'll use that to help um develop our final deliverable for the phase one which is the highle screening assessment for adaptive signal control technology and that's what we'll present for the mobility and infrastructure committee coming up. So thank you all for your input. >> Thank you. >> Thank you. >> Thank you K. I have everything I need to. >> All right. Uh so that concludes our regular business. The uh next section is reports. Uh so staff report. John, do you have a report today? >> I'll give a report. The transportation advisory board. You guys provided a lot of input for the transportation improvement program. And so that went to mobility and infrastructure committee. And the next step is on Monday, June 1st, it will be going to the full council for a public hearing. >> Awesome. >> Uh Andrew is not here today to tell us about light rail, but do you have any Was there news from today? Has anybody heard how the >> I have not been able to check my phone >> Sound Transit board meeting. Yeah, I heard briefly that we've been asked to look at the delivery methods and how would they affect also in the cost. So yeah, so we'll get more exercise >> saga continue. >> Okay. >> Well, it'll be interesting to hear what happens. I'm sure Andrew will send us an email somewhere as well. There's >> a community meeting about it right on Monday, I think, at the depot. I think so. >> I think that's right. So, thank you for >> It's on my calendar. >> The June 1st at the depot is a light rail community update meeting. >> Excellent. >> Okay. Um, >> as a a chair report, I'll I'll say uh John Mortonson and I did dig a little bit deeper into the uh Newport corridor that I keep harassing him about whether we need an extra lane there. Uh, and thanks Chris for confirming that all of the planning tools always say we need an extra lane. >> Sorry, am I spoiling things? Am I getting out of turn? Uh so so I really appreciate the time John has spent taking me through the details on that. Uh it's been an educational process for me and I think some of the interesting stuff that comes out of it is uh just understanding how coupled all of the different projects that we have on on the potential docket for the future are such as the additional I90 crossing and how that relates to expected traffic in 2050 on that route. Um, so it'll be interesting to see if we can um maybe digest some of that information about how everything is coupled and you know what the logical connections between whether we do project A or not and how that affects you know decisions we might make on project B. Uh so hopefully we'll see more of that in the future. Okay. Uh any other business or announcements? This is where you might uh bring up your oh in future meetings. Uh, any other board members? Okay. Uh, well, with that, I think we will call our meeting adjourned at 7:50 p.m. Thanks everybody for the great energy, great discussion. >> Thank you. >> Thank you. >> Yeah. Thanks. Thank you so much.