Velocipedestrienne 🇿🇦

https://mastodon.online/@HayiWena

Recovering traffic engineer, LCI, former bike coop board member, and pied biker of SE WA. Drag stan. Here by the grace of squats, held together mostly by KT tape. #StopDeKindermoord #VikingBiking #CarryShitOlympics #BikeTooter

Profile pic: A woman in a crocheted beanie looks up at the camera over her glasses.
Cover pic: A woman on a cargo bike tows a child on a sled along a snowy street.

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Last Notes

2026-05-18 20:30:01 UTC

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Ask them to say "six."

2024-12-10 19:46:42 UTC

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🧵 17/? Cities add lanes and time signals to reduce the volume-to-capacity ratio and delay to vehicles. If there were science behind parking and trip generation rates, you'd then compare development trips to observed/forecast trips on the road outside. Maybe check the model's previous forecasts. Spoiler alert: Nope.
We've incorporated real patterns of travel behavior from anonymized cellphone data into Travel Demand Modeling, but we have not incorporated it into trip/parking generation rates.

2024-12-10 19:41:43 UTC

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🧵 16/? In the US, your Metropolitan Planning Organization (MPO) or Rural Planning Organization (RPO) is required by Federal law to develop and maintain a travel demand model. Either a developer or a local jurisdiction brings them a scenario (a development, or a comp plan) and the M/RPO staff tweak Step 1 of the 4-step model, turn the handles through Steps 2-4, and output trips moving through intersections and along roads. Active transport isn't modeled, and transit is rarely modeled.

2024-12-10 18:21:28 UTC

🧵 1/? Some half-composed thoughts on Trip Generation Rates and Parking Minima, after a very brief conversation with a retired transit planner last night. I was surprised to hear that he felt there was science behind the new Institute of Traffic Engineers (ITE) Trip Generation Manual and Parking Generation Manuals. (See the manuals here: https://www.ite.org/technical-resources/topics/trip-and-parking-generation/)