There’s a trend towards lower speed limits in cities all over the world, but why is this happening? What is the research behind it? And what is the “correct” speed limit for cities, anyway?

  • tissek@ttrpg.network
    link
    fedilink
    English
    arrow-up
    41
    arrow-down
    1
    ·
    8 个月前

    Spoiler it is 30km/h. After that noise and injury risk/severity shoot up. It is the compromise speed.

    • BruceTwarzen@kbin.social
      link
      fedilink
      arrow-up
      18
      ·
      8 个月前

      In the next city where i live and the smaller almost cities around it, all side roads are 30km/h for a few years now. Some people seem to really hate it, and i kinda get why, when you drive there or live there and out of habit go 50 and get fined, it’s hella expensive. But i’m super happy with it. 30 is plenty

      • FireRetardant@lemmy.world
        link
        fedilink
        English
        arrow-up
        10
        arrow-down
        3
        ·
        edit-2
        8 个月前

        Shouldn’t matter when people and children are dying from the current vehicle speed but I guess slowing down is an infringement on “freedom.”

      • vividspecter@lemm.eeOP
        link
        fedilink
        English
        arrow-up
        5
        ·
        edit-2
        8 个月前

        This would be restricted to city streets. If you want more speed, use the highways or bypass roads that (ideally) aren’t anywhere near residential or city areas.

        And the additional speed actually slows things down on congested roads, because you need more traffic lights (among other reasons).

      • Jerkface (any/all)@lemmy.ca
        link
        fedilink
        English
        arrow-up
        1
        ·
        8 个月前

        Yeah well the rest of us really don’t care if “all y’all” kill each other on the road so knock yourselves out

    • Valmond@lemmy.world
      link
      fedilink
      English
      arrow-up
      14
      ·
      8 个月前

      Also in many european cities you won’t get somewhere faster even if you try, so 30 is definitely a kind of sweet spot.

      • turmacar@lemmy.world
        link
        fedilink
        English
        arrow-up
        5
        ·
        8 个月前

        Most American cities you won’t get there faster either, for all the reasons laid out in the video.

  • Gigan@lemmy.world
    link
    fedilink
    English
    arrow-up
    23
    arrow-down
    1
    ·
    edit-2
    8 个月前

    Most of his critiques are of US infrastructure, so it would have been nice to have the conversions in the video:

    30 km/h = 18.6 mph

    50 km/h = 31.1 mph

    60 km/h = 37.3 mph

    88.5 km/h = 55 mph

    • vividspecter@lemm.eeOP
      link
      fedilink
      English
      arrow-up
      3
      ·
      8 个月前

      You can roughly remember it as:

      • 20 mph = 30 km/h
      • 30 mph = 50 km/h
      • 60 mph = 100 km/h

      but thanks for the precise numbers.