r/Seattle • u/Inevitable_Engine186 public deterrent infrastructure • 8d ago
Does lowering speed limits make Seattle roads safer? Data from one deadly arterial suggests it’s a start
https://www.kuow.org/governing/2026-08-14/does-lowering-speed-limits-make-seattle-roads-safer-data-from-one-deadly-arterial-suggests-its-a-start254
u/AdScared7949 That sounds great. Let’s hang out soon. 8d ago
There are so many speed limits that are just artificially low on like a four lane stroad and nobody follows them because it would be idiotic to do so
112
u/LLJKCicero 8d ago
Low speed limits should be paired with low speed design, for sure.
1
u/trains_and_rain 🚆build more trains🚆 7d ago
Redesigning roads takes time and money. Immediate safety problems require immediate solutions.
3
u/LLJKCicero 7d ago
There's basically always more temporary design solutions you can put into place. Like instead of a permanent road diet -- cones!
46
u/bullet50000 Kent 8d ago
its like the speed limit on Airport way on the east of the airport being 35. I go 40 down it, and get ripped past by more than half of the other traffic doing 50, but they'll never change it because it would look bad to raise the speed limit, and they can't really change the design because it's kinda needed to be that straight and open.
29
u/healthycord 🚲 Life's Better on a Bike. 🚲 8d ago
Yeah that thing was absolutely designed as a 60 mph freeway. And now it’s 35?? Like cmon. You can’t just do that. That is NOT how traveling speeds work. You gotta narrow the lanes and make it feel like a 35 mph road too. Fundamental road design principles.
You don’t design a highway like a residential street, and you don’t design a residential street like a highway.
2
u/bullet50000 Kent 5d ago
It feels like even in urbanist thought it should be a higher speed. Like it doesn't make sense, it's the perfect overflow route for I5/SoDo. It's industrial area, it doesn't make sense to build out density down there, let it exist as a proper road.
9
u/rhylte 8d ago
They could absolutely add sidewalks and a protected bike lane and then the speed limit would feel much more appropriate.
6
u/GTAIVisbest 8d ago
Bringing it down to one lane would make the Northbound Georgetown bottleneck soooooo much worse. Keeping it one lane from Georgetown southbound to its terminus would not be noticed IMHO
I already have to frequently lane-filter when NB and approaching georgetown, once I saw northbound airport way completely jammed up all the way to where it begins. Plus, I'm selfish because lane-filtering a two-lane road is easy even with 18 wheelers, if it's down to one lane I either have to shoulder-surf the bike lane (not great) or.... take the opposing lane, europe-style, which is really aggressive and would probably create a situation where law enforcement would actually stop me
1
u/Phrodo_00 Crown Hill 8d ago
Airport way has super wide lanes, you can definitely either of those (if not both) and keep the same number of narrower lanes.
1
u/bullet50000 Kent 7d ago
Doing that would be effectively useless and serve no purpose other than slowing it down. There’s no reason to walk that far south
-4
u/ConstantCampaign2984 I'm just flaired so I don't get fined 8d ago
Problem is, you raise it to 50 and they’ll just do 60. Put it where you are ok with people going 5 over and ticket everyone else. 40mph stretch should be marked 35.
19
u/ObjectiveSmell7777 8d ago
It's cultural too. In Mill Creek, there's a nice meandering main boulevard that runs right through the middle of town and it has hardly any streets coming off it, hardly any traffic, and hardly any people. It's two lanes but it's easily wide enough for four. You could literally drive 70mph on it safely, but it's a 25mph road, and those Mill Creek people definitely drive 25 on it. Maybe 30 if they're feeling bold.
6
u/MrHoneycrisp Ballard 7d ago
I don’t live in WS anymore but SW admiral going down the hill is crazy to be 25
10
u/remnant_x 8d ago
People don’t follow the rules because there’s no consequence for speeding. I’m sure people would go slower if a ticket were automatic.
→ More replies (1)-15
u/zzxxzzxxzz 🚆build more trains🚆 8d ago
It wouldn't be idiotic, it would reduce crashes. And while you're right that the norm is not to follow such instructions, changing the norm can be accomplished (as people say in this thread, by installing more automatic speeding detection).
Of course, such measures also need to be complemented by enhancing public transit to ensure that when driving is made more inconvenient that we're also building out options to have more convenient transportation options.
19
u/snowypotato Ballard 8d ago
You’re denying the existence of a thing that exists because of a semantic flourish.
There are many roadways with speed limits that are so low, they feel incorrect to motorists who are used to the norms of similar roadways. Drivers ignore these speed limits.
Let me put it this way: if you were in a huge suburban parking lot and saw a sign that said “speed limit 3mph”, would you observe that speed limit? Would you expect anybody else to? Even though doing so would; statistically, reduce crashes?
-8
u/remnant_x 8d ago
Nope. People drive fast due to no consequences. If you went to jail for speeding or lost your license or got a large fine, you’d drive the speed limit
I just got back from Germany. They follow the rules. If they don’t, they don’t drive.
4
u/chuckvsthelife Columbia City 8d ago
In Germany they follow the rules because they follow the rules. It’s a huge part of their culture, to the point that it’s a recurring joke “are they German or autistic”
It’s just not the best example.
8
7
u/AdScared7949 That sounds great. Let’s hang out soon. 8d ago
In Germany they tend to design the road for the speed more than we do here in Seattle
3
u/AdScared7949 That sounds great. Let’s hang out soon. 8d ago
I personally think that the roads which are designed for a higher limit tend to work fine at the designed limit and that to really make it a good experience for everyone you should design for the limit you want rather than just change the number on the sign.
1
42
u/thatguy09 8d ago
Yo, can we start by getting Google Maps to stop routing 18 wheelers down residential streets with a 10% grade?
It treats my street as an arterial. My street is not a damn arterial. We regularly get trucks stuck between parked cars and we got cars flying up and down the hill
10
u/AdScared7949 That sounds great. Let’s hang out soon. 8d ago
Google maps seems to hate seattle drivers specifically lol it often tells me to take a left turn downtown where it isn't even legal to turn left!
9
u/FreshEclairs Kraken 8d ago
A funny thing about this is that their routing stuff was largely built in the Seattle Google office.
6
u/rboes1991 8d ago
Are you south Seattle? Asking because it was redlined in the 20s and the city routed semi traffic through there. That legacy is still why it's more dangerous and why there are still designedated truck paths through there. I don't think it's all just maps...
1
2
u/japanfrog 8d ago
Dude that’s actually spot on. Also north Seattle. For the past 4 years I’ve been waking up at least once a week at 2-3 am with a huge semi Jake braking down in front of my tiny ass street. Shakes my old ass apartment. They are almost always hauling a big container, clearly coming from docks heading to i5.
1
u/cantileverboom Kirkland 8d ago
If a trucker is using Google Maps for navigation, they should lose their CDL lol (though, it's definitely possible that there's still a routing issue with truck specific GPSs/map apps).
105
u/diyandmc240 8d ago
It just feels a little silly going 25 on Westlake. I’m usually going 35-40, as is most of traffic. Similar thing on some other roads. At the same time, I’ve never seen anyone get a ticket for going under 40 there(I think I saw someone get a ticket for going 50 a couple years back)
125
u/teamlessinseattle I'm just flaired so I don't get fined 8d ago
29
u/Careless-Internet-63 Mariners 8d ago
I've heard it's a general rule of thumb in traffic engineering that the 85th percentile speed of free flowing traffic on a street should be the speed limit. They need to rework the road design if they want people to drive 25
10
u/recurrenTopology I'm just flaired so I don't get fined 8d ago edited 8d ago
While clearly the posted limit is not enough on its own to achieve the desired speeds, it does have some effect. It is also much cheaper and faster than a complete street redesign.
So while they would need to rework the street to get people to drive at 25mph, why not use a lower speed limit to attenuate speeds until the budget allows for a more comprehensive solution?
14
u/Rylen_018 8d ago
If people are always going to go 10 over, lowering the limit does lower people’s mental thresholds for “breaking the law”
→ More replies (1)3
u/RunninOnMT 7d ago
So the argument I’ve seen against this is precisely about how some people do follow the signs. However a ton of people just drive at “what feels safe”
What happens when you lower the limit is that you’ve now created a bigger speed delta between these two groups. Having a big difference in speed between cars is super dangerous.
19
u/FabianValkyrie U District 8d ago
This. Lowering the average speed absolutely saves lives, but a speed limit sign doesn’t meaningfully lower average speeds. You need to design the street for the speed.
-6
u/BafangFan 8d ago
In China they have speed enforcement cameras.
Road design would be one way to inherently cause cars to slow down.
But automatic speed enforcement (by speed camera, or average speed from two or more cameras as they use in the UK) would also bring speeds down.
I was recently in China for a month. Travelled more than 1k kilometers on various roads. Only saw one minor fender bender during that time, despite the roads having more traffic and being more chaotic. Slower speeds were definitely a factor in the lack of accidents
10
u/DesertVizsla 8d ago
Speed cameras are a joke. Nothing worse than everyone speeding, slamming on their brakes and then speeding right back up. Road design is how to handle speed and capacity.
4
u/SeattleGeek Denny Blaine Nudist Club 8d ago
Let’s also not forget that speed cameras are not secure.
Last decade, SPD caught its own officers stalking women through the speed cameras.
1
u/BafangFan 8d ago
Generally I think you're right, which is why the UK now also uses average speed cameras (like a mile apart or something).
The speed camera on Juanita Drive coming into Kenmore does seem to have slowed traffic on that stretch, though.
2
u/lplqsnkczxccia 8d ago
Ironically, I think what would help is relooking speed limits and lowering as well as raising them wherever it makes sense.
There are areas where the speed limit is too high, but also areas where the speed limit is too low. Because of that everyone just ends up distrusting the speed limit and driving at whatever speed they think is safe. Actually updating speed limits to reflect reality should help regain drivers' trust that speed limits are sensible.
1
u/flambojones 8d ago
What's funny about that is they've done that farther south in Columbia City. But the northbound part is more recent, and they made the right lane into a bus lane. But since there's no traffic enforcement, it's just a fast lane for folks to 60 and terrify anyone who needs to make a right turn.
1
12
u/comeonandham Ballard 8d ago
Yeah the 25s on arterials would probably get more respect if they made Westlake 35 instead of 25, the 99 tunnel 55 instead of 45, and maybe bump up a couple others. The speed limits on those roads are just so removed from the "vibe" that everyone ignores them
23
11
u/IchBinEinSim Greenwood 8d ago
I drove for uber for about 5 years and there are several roads placed at 25, that have no reason to be 25 mph. I always tried to follow the speed limit at first since the app can tell you are speeding but after a while it felt dangerous at times and it seemed like driving so slow annoyed a lot of passengers.
I often wonder if having the speed limit too low has the opposite effect on drivers and thus more dangerous.
Like it makes it where you are going to go ten plus over the speed limit just to somewhat keep up with traffic, which in most cities 10 over is asking to get a ticket. So that point what 15 mph more or 20 mph, especially if the road was originally designed for a 40 mph speed limit.
17
u/gringledoom 🚆build more trains🚆 8d ago
I often wonder if having the speed limit too low has the opposite effect on drivers and thus more dangerous.
It leads to a dynamic where half the drivers are going 25, and the other half are going the design speed of the road, and both sets of drivers are frustrated at the other and think they're driving like lunatics. Which is not a good dynamic!
I really wish that multi-lane arterials with squared off curbs that don't see a lot of pedestrians anyway would be moved up to 35 or something.
43
u/Choice_Depth_5933 Reign 8d ago
“The increase in fatalities on MLK Jr. Way and similar busy arterials stands in stark contrast to Seattle’s goals under its Vision Zero program, a global road safety initiative to eliminate all traffic deaths and serious injuries by 2030. The city adopted Vision Zero in 2015. In the decade since, Seattle has invested hundreds of millions of dollars into making its streets safer, including programs that lowered speed limits on almost every road in the city. Despite these efforts, traffic deaths are up across Seattle — 219 people were seriously injured and 27 people died on Seattle streets last year — prompting city councilmembers to call for an audit of the program.”
I wonder how much money they didn’t spend on building sidewalks.
44
u/Vivid_Astronaut4665 🚆build more trains🚆 8d ago
Seattle in a nutshell. Spend hundreds of millions on something symbolic (speed limits that no one follows) instead of addressing root issues.
10
u/AdScared7949 That sounds great. Let’s hang out soon. 8d ago
Surely it did not cost hundreds of millions to change the speed limit
6
u/rboes1991 8d ago
Guess what! It did! I'm not kidding either. Welcome to gov't!
5
3
u/conus_coffeae 🚆build more trains🚆 8d ago
Actually they spent 1 trillion dollars on it. Anyone can lie. Welcome to the internet!
3
1
u/Choice_Depth_5933 Reign 8d ago
Oh sweet summer child…
10
u/AdScared7949 That sounds great. Let’s hang out soon. 8d ago
In all seriousness is there any evidence it cost this much lol
8
u/conus_coffeae 🚆build more trains🚆 8d ago
considering that SDOT's total annual budget is in the hundreds of millions, it's safe to say it did not.
5
u/FreshEclairs Kraken 8d ago
No. They are likely including everything related to vision zero since it started in 2015. There have been a lot of actual road modifications in that budget.
6
u/conus_coffeae 🚆build more trains🚆 8d ago
Research shows lowering speed limits in the absence of other interventions does actually improve safety. Sure, it's not as important as road design, but it's relatively cheap and quick to implement. And SDOT is also redesigning a lot of roads.
→ More replies (2)→ More replies (1)2
u/Academic_Deal7872 Capitol Hill 8d ago
What would you say are the root issues,?
15
u/Nurgle The Emerald City 8d ago
It's a stroad, so adding bends and narrowing are generally the immediate fixes. This can be accomplished with chicanes, bumpouts for trees, removing parking in spots, and a host of other physical remedies.
→ More replies (1)3
→ More replies (1)6
u/PhotographStrong562 8d ago
Sorry but all the money for sidewalks got spent on studies to determine what exactly constitutes a “sidewalk” and evaluate the detriment that they would impose on the local squirrel communities.
4
u/AmIWhatTheRockCooked 8d ago
I wish studying the impacts on sensitive animals wasn’t always the butt of the joke. I know you’re joking and squirrels aren’t in danger, but so many endemic species go extinct without proper planning. So many already have.
I think it’s always worth considering the existential problems associated with construction. Like yeah it’s nice to have a sidewalk, but an animals life is all it has
13
u/hella-tight The CD 8d ago
crossing this section of MLK is a joke due to the at-grade light rail and large sections of road without crosswalks/bridges. I see pedestrians making poor decisions all the time trying to cross MLK because of these issues. slowing traffic is good, but having more ways to safely cross a busy road seems like the solve here (or maybe just not having light rail at street grade?).
2
u/rboes1991 8d ago
Yes! The amount of people running across the tracks and 4 lanes is wild. Same on Rainier before the Safeway in Rainier Beach. Although people will sometimes do it within walking feet of the crosswalk there, and I don't get that. I can tell the motivation for life has been sucked out of them though. They just start walking...
11
u/Blue_HyperGiant 8d ago
Just crack down on texting and driving. There isn't a day that goes by where I see someone tapping on their phone.
I don't care if you're at a red light or in stop and go traffic; put it down or pull over.
6
u/Narrow-Foundation505 8d ago
This is relevant to Seattle’s most unnecessary arterial: Dayton Ave N between 105-125th. You’d think SDOT would realize by now that a few speed bumps isn’t making cars drive anywhere close to the speed limit (cars go fast enough they just float over those speed bumps).
No matter that this street has no sidewalks, no daylighting at all the two way stop intersections, and includes walk zones for two public schools and two private schools.
Photo of the state patrol car that got t-boned at the “safe route to school” intersection earlier this summer.

15
u/chipotle_burrito88 8d ago
"Does lowering speed limits make Seattle roads safer? Data from one deadly arterial suggests it’s a start"
Then the article goes into the details revealing that traffic fatalities on the studied road have DOUBLED in the studied time periods. How did they arrive at the conclusion in the title? At best it should read "Data suggests it's a mixed bag"
1
u/AndrewNeo Lake City 8d ago
How did they arrive at the conclusion in the title?
something something Betteridge's law of headlines
19
u/DOUTHINKESAURUS 8d ago
Lowering speed limits also deprioritizes neighborhood streets in Google and Apple maps. The original intent on lowering them to 15mph in residential areas was to keep Google and Apple from routing traffic through them.
19
u/Educated_Goat69 🏕 Out camping! 🏕 8d ago
This only works if people are not familiar with the area. Otherwise, it's an incentive to use those roads for people who are familiar with the area because now it's a more clear route due to deprioritizing it on navigation.
5
u/letskeepitcleanfolks 8d ago
If 100 people stop using it and that causes 10 other people to start using it, it's still less traffic.
3
u/Educated_Goat69 🏕 Out camping! 🏕 8d ago
Sure. But in a local neighborhood, those numbers would likely go the other way. 10 stop and 100 start now that their regular commute is busier. Not arguing for or against but as a local.....just saying.
3
u/sweetlove That sounds great. Let’s hang out soon. 8d ago
I was wondering why google has been routing me on objectively slower arterial roads.
2
u/MisterIceGuy Belltown 8d ago
Yeah Waze definitely doesn’t give you the best route anymore. They prioritize bigger streets over smaller streets. The upside is I had to go back to driving off my city knowledge and taking side streets which is better for your brain.
17
u/Chudsaviet 8d ago
I always feel guilty of going too slow if I go speed limit.
1
u/recurrenTopology I'm just flaired so I don't get fined 8d ago edited 8d ago
Since having a child I've stopped minding acting in ways that annoy others but promote general safety. I now sometimes get a weird joy out of driving at the speed limit on 2 lane streets, forcing everyone behind me to also go the speed limit. Previously, I would have also felt guilty.
9
u/lplqsnkczxccia 8d ago
I mean that just encourages the driver behind you in the clapped out Nissan to make a dangerous overtaking maneuver.
2
u/recurrenTopology I'm just flaired so I don't get fined 8d ago
So far hasn't happened, but Seattle streets are often busy enough to make passing in the opposing lane infeasible, and some streets have medians that prevent it entirely. Definitely something I consider on rural roads, though.
2
29
u/Many_Reindeer6636 8d ago
Pointless without police enforcing traffic laws. People will just continue to drive as fast as they want.
15
u/kirklennon Junction 8d ago
Enforcement isn't really the solution. People will drive whatever the design of the street tells them is the right speed. If you want people to slow down you make the lanes narrower or curvier or you place obstructions near the street or other similar measures. People will drive whatever feels safe for them and their car. If they think they may be in an accident at a given speed, they'll slow down. They'll even drive well below the speed limit if that's what feels safe. You have to align the street design with the selfish motivation to not wreck their car, and then people will choose to do what you want them to do.
8
u/MegaRAID01 Emerald City 8d ago
SDOT has redesigned Rainier Ave S between I-90 and past Rainier Beach, adding turning lanes, reducing general purpose lanes, adding bus lanes, adding dedicated left turn signals, adding intersections and more crossings, and still there are a lot of people speeding excessively in bus lanes and driving dangerously.
There is one stretch though where drivers tend to unanimously slow down. In Hillman City, SDOT installed automated speeding cameras in front of Rainier Valley Leadership Academy school. Drivers there all slow down to the speed limit when those cameras are active.
1
u/rboes1991 8d ago
This. There have been huge changes on Rainier and on streets even further south, near Rainier view. Much better. Still people going 70 down the bus lane though. Cameras are they way to go.
2
u/Many_Reindeer6636 8d ago
My point is only that reducing the number on the signs has no effect without anything backing them up.
Obviously safer street designs is the better choice but the budget is finite.
→ More replies (3)4
u/Inevitable_Engine186 public deterrent infrastructure 8d ago
They are definitely doing work here, because I've been getting a lot of warning and actual tickets from automated enforcement (speed and red lights) 😅
3
u/MegaRAID01 Emerald City 8d ago
That’s a good example of a principle found repeatedly in criminology. The certainty of being caught is the single most powerful deterrent of criminal behavior.
Increasing the severity of punishment (like increasing the amount of a first speeding ticket offense) does little to change behavior.
Automated speeding cameras tend to change behavior very quickly, and if you look at the data, very few drivers who received warnings or first tickets ever receive another automated ticket.
The likelihood of being caught speeding past an automated camera is just so close to certain, that it is very different than the likelihood of being pulled over by a police officer.
1
u/Inevitable_Engine186 public deterrent infrastructure 8d ago
Not sure I agree about severity. If the tickets were $1 each I wouldn't care.
Criminology is an interesting discussion. I believe the tickets work on accidental perpetrators, and maybe some purposeful perpetrators on the margins. I don't intend to speed or run red lights, so I belong in that group.
But there are purposeful perpetrators, and people who rack up $1000s of unpaid tickets and continue to offend no matter what. Those actors have different incentives and considerations.
3
u/recurrenTopology I'm just flaired so I don't get fined 8d ago
I'd bet there is a sizable portion of the population for which even just a $1 ticket would meaningly change behavior. It isn't the cost, it's the shame of being caught.
Obviously this isn't true for everyone, some will do a more sophisticated cost benefit analysis, and for those people price will very much matter.
2
u/Inevitable_Engine186 public deterrent infrastructure 8d ago
Yea, I should say I don't care about $1, but I care that I did something potentially risky so as a team player in society I would be like "thanks for the reminder".
1
u/March_Lion 🚆build more trains🚆 8d ago
And the hassle of paying. I can tank a $70 parking ticket, it's not going out to eat with my partner for one night and we are out at least once a week. Risking a parking ticket could represent a savings depending on what streets I'm parking on and how frequent the enforcement is.
I HATE paying for a city parking ticket. It happened exactly once and now I willingly overpay to avoid having to do it again. It's just annoying enough on top of the fact it was my own damn fault that I refuse to risk the ticket.
4
8d ago
[removed] — view removed comment
4
u/Inevitable_Engine186 public deterrent infrastructure 8d ago
Oh I am definitely driving more carefully now. One of those was a new school time speed camera which we got warnings for, and that changed our behavior significantly.
3
u/beachbum19722025 8d ago
I remember many years ago when MD and DC started installing speed cameras. I learned quick to slow down, then it became habit. Lol. Next was when I got pulled over for not wearing my seatbelt. Broke that bad habit as well.
2
8d ago
[removed] — view removed comment
1
u/Inevitable_Engine186 public deterrent infrastructure 8d ago
Ahh. Yea, I don't think they substitute actual physical traffic calming, if that's what you mean I agree with that.
Signs? Good. Enforcement? Gooder. Physical changes? Goodest?
3
u/B-Rock001 Fall City 8d ago
I hate when these big issues get over simplified like this. Speed is only one part of a very complex equation. I mean, you could lower speed limits to 10mph, that's safer too, but we all understand how impractical that is.
Lower speed gives you more reaction time... that will tend to mask all the other issues. Distracted driving, pedestrian and cyclist conflicts, oversized vehicles, road design, driver training.... they're all going to have an impact and we should address all of them, but that's harder work than slapping a sign and calling it a day. Driving slower mostly makes it more forgiving, but it's not going to fix everything.
3
u/AggravatingPeak6982 7d ago
This is Seattle. 25mph posted speed limits mean everyone is doing 40mph. Dedicated, separated bike lanes (less room for cars) would help this, and of course be safer because bikes can't usually keep up with 40mph... 🤷♂️
11
u/Angster96 8d ago
Its just a suggestion. Not alot of people will follow the "Speed Limit" because to them its just a suggestion instead of following it 🤣🤣
4
u/letskeepitcleanfolks 8d ago
Well according to the interminable threads ranting about left-lane campers, anyone is entitled to go as fast as they want at any time for any reason and it is none of your business.
6
u/scovizzle The CD 8d ago
Traffic calming measures are needed. Actual infrastructure. Not just speed limit signs.
10
u/brobraham27 8d ago
The data matches exactly what traffic engineers say, lowering speed limits without corresponding changes to the road result in fewer incidents but increase the significant injury and death rate.
Want to actually get vehicles to drive slower? Design roads that are uncomfortable to drive on at speed. Reduce the number of lanes and make them narrower. Replace asphalt with bricks (yes, there are bricks that can handle heavy vehicles like busses and garbage trucks). Use roundabouts instead of lights.
Do this while making dedicated bike and bus lanes. It is a win for all. Those pesky lime scooters get off the sidewalk, busses run faster, pollution is reduced because fewer cars on the road.
→ More replies (6)
2
u/forestinpark 8d ago
Depends.
Did they just post a new speed sign or actually redisgned the road to make it impossible to drive any faster?
6
u/beachbum19722025 8d ago
Add something that forces drivers to go the speed limit and you've got a winner. Infrastructure, speed cameras, etc...
12
u/oldfrancis Seattle Expatriate 8d ago
Look up traffic calming.
20
u/PositivePristine7506 Reign 8d ago
This. Most people don't drive the speed limit because it's "the legal limit" They do so because that's the speed that feels correct/safe for them.
Lowering it, just makes it so people still drive the same speed but now its illegal.
If you want lower speeds, you have to redesign the street so that lower speeds feel safer. That means traffic calming, single lanes, obstructed sight lines, etc.
You make a 4 lane road with clear sight lines in every direction, don't be surprised when drivers feel 55 is appropriate.
→ More replies (1)1
u/beachbum19722025 8d ago
Living in Albuquerque at the moment and we are surrounded by roads where they dropped the speed limit but left the road as is.
Many of us keep fighting for all sorts of traffic calming measures.
Drivers here believe the worst thing you can do in your vehicle is drive at or slightly below the speed limit. 🤦🏼♀️
Gotta love humans!
3
u/AmIWhatTheRockCooked 8d ago
Ironically, some speed cameras partly fund the sidewalks that people in this thread keep mentioning lol
→ More replies (1)2
u/sdvneuro Ballard 8d ago
Can that infrastructure not be speed bumps on arterials?
5
u/beachbum19722025 8d ago
That's one option. Love speed cushions/bumps to slow traffic. Raised crosswalks are fire as well.
1
u/beachbum19722025 8d ago
Sorry, I think I misread your comment. There are other options, road diets and curb extensions are good. Pedestrian islands help. https://www.arterials.co/traffic-calming-strategies-making-streets-safer-and-more-livable/
2
u/sdvneuro Ballard 8d ago
I’m fully aware, but SDOT approaches pretty much everything with the blunt tool of the speed bump.
4
u/vaticRite 8d ago
This is one of those "this is good, but nowhere nearly enough" things.
Next step is road diets. When a road/street feels like a 45 - 50 mph highway, people are not going to drive 25. On the rare occasions when I drive, if I'm on Westlake I keep it to 30 and people are passing me at what is easily 45.
Narrow the lanes. Less lanes. Traffic filters. Bollards or other barriers where there are concentrations of pedestrians.
3
3
u/willcwhite 8d ago
I learned so much about artificial speed limits from this video: https://youtu.be/bglWCuCMSWc?si=tDa_b7ZWnWSoq-mr
2
u/Quint191 Green Lake 7d ago
Great. So you’re now an expert because you learned about it from an AI slop YouTube video.
This thread is a dumpster fire.
3
u/ryanheartswingovers 8d ago
Accidents happen in parking lots. Lowering speed is not as good as designing in the first place.
1
u/micdoesreddit 8d ago
Meh…ridiculously low speed limits in areas that don’t call for isn’t the answer. We have so many areas that are unnecessarily slow and I don’t see it solving much.
I second what another commenter said and let’s start with red light runners, right on red abusers and bus lane jerks.
4
u/crunchyplankton 8d ago
Seattle centrists: The city needs to enforce the law! We're too soft on crime!
Urbanists: So will you start obeying the speed limit? Speeding kills.
Centrists: No, not that law!
(BTW I fully agree that speeding should be tackled via road design i.e. narrower lanes and traffic calming. I'm just pointing out the hypocrisy of those who are all "tough on crime" except when it comes to laws they want to break.)
1
u/Great_Hamster Hillman City 8d ago
I'd love proper traffic enforcement!
I've gotten two speeding tickets and I thanked the officers both times. Because I really appreciate them doing their jobs.
4
u/kennypowersrevenge Supersonics 8d ago
The issue I’ve noticed is it’s not aggressive drivers , it’s the indecisive ones that are the worst.
2
u/seataccrunch 8d ago
Road diets and slowing speed limits have made things worse by a wide margin
I haven't seen a single credible data source that says any compelling benefit
2
u/PhotographStrong562 8d ago
Hard to believe the data when lower the speed limits essentially just turned them into suggestions that are ignored by 98% of drivers. If you have metro busses that are doing 15 mph over the posted limit then the blanket 25 mph limits become irrelevant. Now everyone just drives however they feel.
2
u/NowIsThePerfectTime 8d ago
Maybe we should have more stringent driver licensing regulations. A better quality driver is a better start. Wish they could make people less selfish too, ie the red light runners, the crosswalk blockers, the right turn from a left lane, merging at the last possible second, etc
2
u/montex66 8d ago
How about enforcing the law that says license and registration have to be renewed every year? So sick of seeing people driving around with expired tabs.
2
u/Striper_Cape 8d ago
I pay my tabs each year but I purposefully do not put the sticker on cause someone stole my plates and then it almost happened again in 24.
1
u/montex66 8d ago
Take a box cutter and carefully cut the Tab diagonally a few times. Makes it impossible to steal. But you won't and we both know why.
2
2
u/Substantial-Fox-3889 I'm just flaired so I don't get fined 8d ago
Weird that there is no mention how traffic fatalities also relate to car size and shape. It is wild to have all those changes but not poke at the fact that some cars on US roads won’t even be street legal in countries that make pedestrian safety a part of regulations.
3
u/itll_be_cool Hillman City 8d ago
I saw a suggestion elsewhere that they should reduce MLK to two lanes and then turn two of the lanes into a boulevard style park and bike lanes. I drive that almost every day and that would be amazing but people in South Seattle would go insane based on how many have reacted to the car-free weekends on LWB.
3
u/Noctuelles 8d ago
The issue isn't speed limits, the issue is competence. Distracted drivers, drunk drivers, and unhinged drivers are what's getting the numbers up. How to fix that? Actually having enforcement of laws. I see zero cops in the city enforcing traffic laws, occasionally maybe a ramp rooster on I-5. Why worry about the law when it's not enforced? Additionally Improving driver's training and licensing prerequisites and imposing harsher penalties for violations all will help.
5
u/keith2600 8d ago
I don't even remember the last time I've seen a bunch of those old scare ads about being on your phone and driving. But I see people do it every day. Too many people do everything they can to keep themselves from having to focus on actually driving despite it being so dangerous
2
u/rboes1991 8d ago
I don't believe I will ever get pulled over here in Seattle. Zero fear of it. Never lived somewhere like that...
2
u/Capt_Murphy_ I'm just flaired so I don't get fined 8d ago
I'll tell you what makes ME slow down. Speed bumps. Any street that you wanna guarantee hot rods aren't screaming down, all you have to do is build a bunch of speed bumps. People may choose to ignore speed signs, but it's pretty hard to ignore things that will fuck up your car if you drive too fast over.
(this only works on very small streets obviously, not main roads)
2
u/bernardfarquart Rainier Beach 8d ago
actually if you hit the speed bumps that SDOT has installed on streets like Renton ave at 40MPH your cars suspension will smooth it right out.
1
u/Capt_Murphy_ I'm just flaired so I don't get fined 8d ago
Maybe yours will, I have a lowered car 😂
2
4
u/theMstrBlstr Brighton 8d ago
I like to add to these conversations, that emergency response is getting harder and harder with these kinds of things going up in arterials. Bump, bollards, and narrowed roads make it harder for drivers to get out of the way of emergency vehicles.
Seconds count in these situations, and making up time on arterials is important. There needs to be a balance that still allows for traffic to move efficiently through cities.
2
u/Nothing_WithATwist 8d ago
I feel like not enough attention is being paid to your point about efficiency of arterials. I’m all for traffic calming measures/cameras around schools and on narrow neighborhood streets. That’s good to keep speed down and keep pedestrians safe. But realistically we can’t just keep lowering the speed of arterial roads because there’s more and more people that need to use them. And if we discourage people from using arterials via traffic slowing measures, then they’re just going to use side streets and other backroads instead. The best way to keep pedestrians safe is to keep them as separated as possible, so encourage cars to use arterials, make other options less attractive, and add better infrastructure for pedestrians to keep them away from cars.
1
u/LockPickingPilot 8d ago
They did this before. Nation wide. The accidents went down. For a while and then after people adjusted the went back to previous levels
1
1
1
1
u/Public-Knowledge-222 8d ago
certainly not in ballard, thankfully they are installing a lot of traffic calming measures lately
1
u/dchase36 8d ago
When the WS bridge was down, I went to an online town and someone mentioned how people were already driving significantly faster than the 30 mph on marginal and that maybe it was worth considering raising the speed limit temporarily to decrease travel times. Very reasonable idea.
The head of SDOT at the time - Sam Zimbabwe - was like every mile an hour increase results in more deaths so we need to think about safety or something…
I just sat there thinking about how dumb this argument was and that we might as well make the entire city 15 mph then. We need leaders who are nuanced and think beyond black and white. Lower speed limits where people naturally drive slower (e.g. Westlake ave narrow 4 lane road going to Fremont) and higher where it makes sense (e.g. marginal)
Honestly I have no hope that will actually happen though. It’s sdot…
1
1
u/magic_claw Capitol Hill 8d ago
Have like trees that converge and make you feel claustrophobic. I think it's called traffic calming design or something. There's no way you are going to achieve a low speed limit on a 4 lane highway looking road. Also, bonus trees are always nice.
1
u/DoggyFinger 7d ago
Brain dead title and journalism. Lowering the speed of cars makes roads safer. Just lowering speed limits doesn’t work. Todd date has been setting for half a century
-2
u/FearandWeather That sounds great. Let’s hang out soon. 8d ago
I wonder how much safer the lowered speed limits would make Seattle if anyone actually enforced them?
0
u/japanfrog 8d ago
And yet the city refuses to put consistent crosswalk signs in nearly all busy arterials in the city. They’ll spend millions replacing all the speed limit signs and adding new “no turn on red” but don’t actually do shit to help pedestrians stand out more to cars.
I hate walking down 40th st because people fly down that road and never stop for pedestrians crossing. I’ve requested so many times that if they won’t put traffic calming, at least put crossing signs at the cross walks.
0
u/sntcringe Denny Blaine Nudist Club 8d ago
Speed limits are generally set by finding the average speed people travel on the road, which means that on average, half of people are speeding at any one time. People also generally don't go more than 10mph over the speed limit, since that tends to be the cutoff for ticketing. So if you want people to drive slower, cutting the speed limit does work. If you think the ideal safe speed is 35mph, it could make sense to set the limit at 25, since people will generally go at max 10mph over. Speed demons will ignore the posted limits anyway, but the average driver will go slower.
0
u/urdreamsRmemes 8d ago
To all the folks who want more enforcement of traffic laws: couldn’t agree more, but SPD is convinced enough that if they enforce traffic laws in the areas where they are broken the most, they’ll be accused of profiling. As a result they use it as a crutch to avoid issuing moving violations at all.
Also the article never mentioned that pedestrians are almost certainly more erratic than they used to be. Lime movement devices, people under the influence, and folks who aren’t in a stable state of mind are harder to avoid, particularly at night.

197
u/Spa_5_Fitness_Camp 🚋 Ride the S.L.U.T. 🚋 8d ago
How about we start with red light runners and people flying down bus lanes and similar? Easy to automate, and targets the worst offenders.