@capntransit dirty #trafficEngineering industry secret: if you plan for 2/5 or 3/5 of cars to disappear, they disappear, congestion pricing or not. #InducedDemand | #TrafficEvaporation are just two sides of the same coin.

In #PavedParadise, @henrygrabar reminds us that several ITE leaders have denounced how its parking demand estimates have been used.

“We expected you to be smart!” says one former VP.

“Nobody on the ground knows ITE has changed their tune,” adds Daniel McKenna-Foster.

#Parking #ParkingReform #UrbanPlanning #TrafficEngineering

"This is the standard method that the Netherlands uses to prevent people from driving through a neighborhood, and they make the streets safer and more enjoyable for everyone who lives there."

Also basically the only solution to traffic, and will still be the answer, no matter how much time we waste wishing for some other option.
#BanCars #Bollards #ModalFiltering #BikeTooter #trafficEngineering #ontvlechten #stuffInTheStreet #CompleteStreets #VisionZero @notjustbikes

https://youtu.be/ymcBC7MFRIk

#BikeNite A8 @carolski #pedalPaloozaPDX is an amazing 3-month-long thing but the picture I have from this ride shows a poorly-designed #EdgeLaneRoad / #AdvisoryBikeLanes design (shoulda had a shared central lane narrower than 2.5 car widths) with door-zone lane outside of parking and a car parked in the way for the cherry on top. #PBOT #ClimateWishing #TrafficEngineering

My 12yo is waging a protest against gravity being hard, I mean I totally understand how PBOT and our entire city govt is institutionally wishing cars would pay full price but be cheap and the streets would be empty like a car commercial but bustling with economic activity, and all of it electric & powered by cinnamon-scented #UnicornFarts. #climateWishing #CarsRuinCities #InducedDemand #ScienceDenial #TrafficEngineering

Florida's #CompleteStreets guidance tells road designers how to translate context into target speeds, including transitions through rural town centers.

It also tells local governments what their built environment should look like.

via @NewUrbanism @cnupublicsquare
#RoadDesign #TrafficEngineering #NewUrbanism

#InducedDemand is the Fuck Around and Find Out of #TrafficEngineering

https://twitter.com/FuckCarsReddit/status/1676267071255252992

Traditionally, speed limits were set based on how fast the top 15% of drivers travel. State agencies in Minnesota, Massachusetts, Washington, and others are leaning into new approaches that prioritize safety and speed management. https://ssti.us/2023/05/30/state-dots-are-helping-locals-set-lower-speed-limits/

#SafeStreets #VisionZero #TrafficEngineering #RoadDesign

On Twitter, @boenau points out the AASHTO Green Book is more flexible than some road designers seem to think. https://twitter.com/Boenau/status/1661335068063809536

But a 2010 article found:

30 states require wider lanes than in the Green Book.

9 require a larger minimum turning radius.

12 require design speeds 5-10mph above the speed limit. https://t.co/kRBLdd5hYZ

Chicago reached a deal with the IDOT to use design vehicles smaller than 65'. https://www.illinois.gov/news/press-release.25918.html

#RoadDesign #TrafficEngineering #CompleteStreets

system working as-designed, 35 in a 25mph zone etc
#InducedDemand #TrafficEngineering failure #pdxBikes #Portland #ZeroVision

"choosing speed and convenience for automobiles" is such a silly way to state the trade-off made by #trafficEngineering to preserve #carSupremacy. I suppose it's convenient for cars / carmakers that engineers constantly choose speed, but none of these anti-ped/bike/transit decisions will ever bring convenience to drivers. #InduceDemand (Also these cities aren't so conservative, they just have broken voting methods that let the newspaper & business ass. pick the winner)

https://usa.streetsblog.org/2023/05/18/essay-why-even-the-most-progressive-cities-are-failing-their-car-free-residents/

Wow @bikeloudpdx is busy! Suing #Portland over unbuilt #BikeBill infrastructure, bike crash police report analysis, taking on the #MandatorySidepathLaw + other state laws against biking, reforming/disarming #TrafficEnforcement to involve #trafficEngineering and infrastructure changes as per #VisionZero #SafeStreetsByDesign best practice, and a volunteer Bike Buddy program to find help getting started in your neighborhood. https://bikeloudpdx.org/learn-to-bike-safely/
Lots of rides coming up on @shift2bikes 💯 🚲 📣 ❗

@dr2chase I think the third chart here (deaths per #VMT) is more significant and actionable than per population or per vehicle. How much we drive or how much we're coerced/compelled to own cars can be influenced by land use, parking, tax, and subsidies, but the deaths per mile driven reflects the fallacies of our #trafficEngineering standards and design manuals (and to some extent, the racist gun-fetishist thuggery of our traffic enforcement.) #VisionZero #ClimateAction

Is #trafficEngineering a dead career path, or does the profession stand a chance to deliver the VMT reduction they're asked from #VisionZero and #ClimateAction plans? This stretch of #DennyRd is the only way for people on #pdxBikes to connect part of the #FannoCreekTrail over #ODOT's freeway 217. https://urbanists.video/w/fZdN62XKLGNyxaoT1xwzrk

Traffic deaths leveled off in 2022, according to the National Highway Traffic Safety Administration (NHTSA). But the Governors Highway Safety Association (GHSA) estimates pedestrian deaths continued climbing, with another 5% increase. https://www.ghsa.org/resources/news-releases/NHTSA-2022-Traffic-Deaths23

#TrafficSafety #TrafficEngineering #VisionZero #Walkability

"the sad irony: designing your city only for cars makes the roads worse for drivers" #trafficEngineering #EngineeringTraffic

@wackomedia ...and more stores could fill in between sooner, transit could run more frequently. All of this is being blocked by #trafficEngineering "standards", which preserves space for oversized vehicles by design (and contrary to what they would have you believe, this is at the discretion of the Engineer, as the manual says.) The politics of cheap/free parking and gas subsidies is inter-generational theft, cars need to pay their way, #polluterPays.
@scott @sanae

@wackomedia how about yellow centerlines? Plenty of Portland streets without sidewalks definitely have them, #trafficEngineering standards being what they are. I say we can't afford to create #InducedDemand for 4000 cars per day if we can't afford sidewalks, but we need elected officials or a judge to say it. #VisionZero, #ClimateAction, fiscal solvency, etc
@scott @sanae
https://urbanists.social/@enobacon/110047549330413037

When you flip to some page in the #trafficEngineering handbook, count cars and multiply by the number in the table, without accounting for conditions on the ground and in terms of bike/walk network connectivity, you conclude that two lanes and a left turn pocket are "needed" despite lack of bike lane or sidewalk, somebody is going to get killed.

@ObbieZ too often and unpredictably to require some reservation or logistics, to even get to the nearest car rental place without a car requires overcoming a couple miles of the state highway department's #TrafficEngineering / coercion of maintaining deadly 5-lane stroads through the city.