I have recently got into mapping traffic signs and speed limits where I can, but I realised I don’t know what to do when mapping differing speed limit signs that are offset from each other. It’s a transition from a 50km/h zone to a 60km/h zone but the signs are offset by 65m, making a sort of “no-mans land” in-between. I plan to map it with the in-between zone tagged with separate maxspeed:forward and maxspeed:backward tags. I assume it should be done this way because as a driver on the ground I would follow the speed limit signs on my side of the road as I passed them, having no knowledge of the reverse sign.

I guess I’m wondering if this is a logical way to map this?

  • freagle@lemmygrad.mlEnglish
    1·
    2 months ago

    As far as I know. When speed limit goes UP, the speed limit takes place as soon as the sign is visible. But, When the speed limit goes DOWN the limit is in place at the location of the sign and beyond

    • gencha@lemm.eeEnglish
      1·
      2 months ago

      I always assumed this to be a joke in reference to driving too fast.

    • forrgott@lemm.eeEnglish
      3·
      2 months ago

      Heh, wouldn’t that be nice. No. Up or down, the default is at the sign. Only exception is inside a municipality with a rule saying signs within so far of a corner take effect at the corner.

      Ninja edit: a word or two

      • Vincent@feddit.nlEnglish
        1·
        2 months ago

        I imagine this is different per country as well? I’ve never heard of municipalities with that rules in my country, at least.