On 2015-09-30 11:14, Martin Koppenhoefer wrote:
2015-09-30 10:18 GMT+02:00 Lauri Kytömaa <lkyto...@gmail.com>:

In my experience collecting the signs exhaustively has revealed
smaller and
bigger errors in osm data, and also in the signs (say, "leaking"
zone signs,
missing parking restrictions and different moped allowances in
different
opposing directions on combined cycling and pedestrian ways).

Not sure, but it might be valid to have different access restrictions
(e.g. moped) on the same way, depending on the direction (while it
must not be on purpose, there is still the possibility it is on
purpose, similarly, maxspeeds for non divided, one carriageway roads
might be different depending on the direction of travel).

The city of Amsterdam is very good at this. One-way streets very often have no signs at the side where you are allowed to enter but have a sign "closed for motorized traffic with more than two wheels" on the other side.

Effectively it is not a one-way street because cars are still allowed to turn around and you can drive in reverse (not allowed in a one-way street).

How would you put this as a restriction in OSM? motorcar:backward=no or something?

Maarten

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