On Sat, 2013-09-21 at 22:09 +0100, Andy Street wrote: > I'd agree that maxspeed=national is insufficient as it is impossible > to tell what speed you can do in a built up area. National speed limits rarely apply in built up areas, other than sometimes on faster feeder roads. The built up area limit in the UK is 30mph, unless signposted differently. This is implied by the presence of street lighting. 30mph limits, where there are no streetlights, require repeater signs.
> I'm also not a huge > fan of the current practice of placing "single" or "dual" in the > maxspeed:type tag either as I consider the number of carriageways to be > feature of the road rather than the speed limit. This tag is vital, as in the UK on roads where the national speed limit applies, it is much more than a mere feature of the road as you put it, but defines the speed limit. When roads change between single and dual carriageway the speed limit changes, there are no signposts. 60 mph on single carriageways, 70 mph on dual carriageways or 70 mph on motorways in England and Wales are never explicitly signposted on NSL roads, but are indicated by the black diagonal, or motorway chopsticks signs. There are a few exceptions on special roads, hence the A55 in North Wales and the Edinburgh City Bypass do have 70mph signage. Phil (trigpoint} _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb