[Tagging] maxspeed:type vs source:maxspeed // StreetComplete
phil at trigpoint.me.uk
Wed Sep 19 17:34:14 UTC 2018
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.
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
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
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