How to interpret conflicting conditional restrictions?

[MarBur]

@Niels_Elgaard_Larsen

That is why I would like a reference implementation of the algorithm.
It is OK if routers implements it differently because they have not yet had the resources to do it right. But it is bad if they have different opinions about what the tagging means.

I think the opening hours evaluation tool is a great help.
opening_hours evaluation tool

Opening hours evaluator is great to evaluate opening hours we either need something for conditional restrictions combinations or description with some examples like with computing access.

@alan_gr

@MarBur

Because highway=footway,access=yes I think we can all agree that this also allows car and bicycle.

See the comments on the main “access” page of the wiki about theory versus practice. I believe that of the 3 routers on the main osm.org page, OSRM will route cars and bicycles on such a way, GraphHopper will route bicycles but not cars, and Valhalla will only route pedestrians.

This seems odd, since according to official computing access restriction examples access=yes should allow access to all. Yes usually it’s probably tagging mistake but highway=cycleway,access=destination could be completely normal cycleway that allows normal car access for people living there.

But this also shows that even though we do apparently have “official” interpretation there are differences in implementation so I just try to do my best and interpret tags in a way that will break the least amount of real world examples (like highway=steps allowing cycling all of a sudden)

@mueschel

@MarBur

Also some “fun” examples.

These obvious tagging mistakes are distracting when you want to discuss how proper tagging looks like. We have to accept that mistakes are made, but they should not lead to a reinterpretation of tags that exist since > 20 years.

First one is probably tagging mistake but second with pedestrian could be expected. Maybe better tagging would be motor_vehicle:conditional or just vehicle:conditional. (but you can also deliver with a bicycle)

Thank you for all the replies it seems there is not a big consensus what to do.