Liza Lutzker
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lizalutzker.bsky.social
Liza Lutzker
@lizalutzker.bsky.social
Safe Streets Researcher: @ucberkeleysafetrec.bsky.social
Epi PhD Student: @berkeleypublichlth.bsky.social
Advocate: @walkbikeberk.bsky.social

Data-driven + Equity-focused
Views are obviously mine
Theehuis Rhijnauwen?
March 25, 2025 at 6:38 PM
Same same
March 7, 2025 at 1:45 AM
Came here to say this
March 1, 2025 at 3:38 PM
Yeah, I think you can argue that basing a speed limit on the 85th when so few vehicles were measured means you’re very unlikely to be getting the true 85th (huge margin of error). If true 85th were a few mph lower (27.4 instead of 31), you could lower to 20 based on AB43 given schools and park.
February 17, 2025 at 10:42 PM
I guess I’d just say that, since the speed limit based on this E&TS wouldn’t stand up in court, I’d also just encourage setting at 20 or 25 and not enforce it. You can do that - just put up the speed limit you want and don’t bother enforcing it. You’ll still get some effect.
February 17, 2025 at 9:16 PM
This E&TS would not stand up in court. The CA Manual on Speed Limit Setting states “In no case should the sample contain less than 50 vehicles.” I’d recommend city engineers request a change in functional classification of this road from collector to local, then set the speed limit as they choose.
February 17, 2025 at 8:29 PM
I also feel like this about accessing “free” data.
February 12, 2025 at 11:54 PM
I ordered ours about 2 weeks ago figuring it’ll be done any day now.
February 12, 2025 at 11:15 PM