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submitted 1 month ago* (last edited 1 month ago) by lgsp@feddit.it to c/fuckcars@lemmy.world

Those who use the bike know this very well: in the city, speeding motorists overtaking other cars, only get one thing: they arrive first to the next red.

With a simple model, the author estimated the probability that one car that overtakes another, will then be reached again at a later red light. Then he estimated the probability that the same thing will happen when there are multiple successive traffic lights, as usual in the cities.

The result is that as fast as an aggressive driver goes, the presence of multiple traffic lights makes it virtually certain that a slower driver will catch up

So, if someone aggressively overcomes you, when you reach him at the next traffic light, you can tell him that it is mathematically proven that he/she is an idiot.

In addition, this study has implications for the 30 km/h city, demonstrating how in urban areas the traffic lights determine the travel times, not the maximum speed reachable between one traffic light and the next.

The original scientific article is here: https://royalsocietypublishing.org/rsos/article/13/4/260310/481212/The-Voorhees-law-of-traffic-a-stochastic-model

crossposted from: https://poliversity.it/users/rivoluzioneurbanamobilita/statuses/116419204210303856

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[-] psud@aussie.zone 0 points 1 month ago

heavy enough

It's nearly never about weight, the sensor is a metal detector my steel bike triggers lights easily, my carbon fibre bike doesn't trigger any except the newest which can see the metal in my pedals and chain in the bike area — it's really nice when you roll up to a light and see the loops embedded in the bike holding area

The bike holding area is also good, it puts bikes where drivers can't fail to see them

[-] MachineFab812@discuss.tchncs.de 1 points 1 month ago

Again, making assumptions about what every light will be like. Different places installed different things at different times. Sensors fail. Programming gets updated and introduces errors. My city has a dozen or-so painted cross-walks at intersections that work as I've described previously, and without any buttons for pedestrians to push to make the light change; Those lights will NEVER change for a pedestrian at night. The "exceptions" laws stay on the books for many different reasons, reasons that will likely never go-away.

Literally no-one here is arguing against "bike holding areas"(?), but if you want to argue there should never be exceptions, exceptions made to accomodate bikes and pedestrians of all things, you're gonna have a bad time.

this post was submitted on 18 Apr 2026
11 points (100.0% liked)

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