On Wed, 2018-09-19 at 18:04 +0200, Colin Smale wrote: > In many countries in Europe, the "Welcome to XXX" sign as you enter a > town/village has the effect of delineating the "built-up area" for > traffic purposes and introduces a specific speed limit, without any > numbers being mentioned. In the countries I know in Northern Europe > it means "maxspeed=50 kmh" until you leave the town/village (unless > otherwise indicated of course). And that is independent of the type > of road by the way. On a motorway you will not pass one of these > official signs, so you carry on at 130 or whatever. The sign would be > on the exit ramps. > The built-up area for traffic law purposes is therefore often non- > contiguous, made up of lots of polygons. You just have to know if you > are in or out of a built-up area, because it makes a difference to > many things about traffic laws (not just maxspeed). > When joining a motorway you will see the international chopsticks symbol which tell you that the national motorway speed limit applies. https://www.mapillary.com/app/?lat=52.60005784739699&lng=-1.19589832816 87308&z=17&pKey=Gkpjh6SE0kU_Yw96YfXNQg&focus=photo In the UK roads that are National Speed Limit are indicated by a white circle with a black diagonal line indicating the start of the national speed limit, this is 60mph on single carriageways and 70 mph on dual carriageways. https://www.mapillary.com/app/?lat=52.863630348111315&lng=-2.7200549019 88078&z=17&pKey=4aM-U0vHuiOEqF2lWHBjbQ&focus=photo We use the maxspeed:type tag to indicate that we have observed this sign and interpreted it as gb:nsl_single/gb:nsl_dual or gb:nsl:motorway. Phil (trigpoint)
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