[OSM-talk] OpenStreetMap routing service

[Ed Loach]

Ben wrote:

> (a) if for some reason the traffic rules change so that the
> sign marking
> that kind of road allows pedestrians, we don't have to edit all
> trunks
> in a country, and

Which reminds me. I think the discussion was here recently about mph
in the UK (as in 
maxspeed=20mph or whatever)

I was wondering whether for a similar reason to the above it would
make sense to tag routes where it applies (sign white circle with
black diagonal line) with:
maxspeed=national 
rather than =60mph or =70mph (or even =30mph if the national speed
limit signs include a built up street lit area, apparently), in case
the government redefine what the national limit actually is. Or if
it happened is there some way of automatically updating all 70mph
values to 80mph (and hope that they are all actually signed with the
national speed limit sign rather than the specific value of 70). It
would be a nightmare having to check every way and amend the values
manually.

Ed