[OpenStreetMap talk-lu] Access restrictions

[Matthijs Melissen]

On 02/07/12 09:35, Pierre Carier wrote:
> I talked with friends (police officers) and with ACL. The meaning of
> C.2 can be changed with an additional sign below. So C.2 on a track
> means that only persons who work there or who live there (if they live
> on a track) have access.
Yes, so far we agree.
> For me it^'s clear on a track: motor_vehicle: agricultural, or more
> detailed motocar and motorcycle. 
What about a track with sign C.2 that can be used as a shortcut for a
farmer, but that does not lead directly to his land or farm? Can he use
it with his agricultural vehicle? I think he cannot: only vehicles that
need to be on the land or farm reached by the track can use it. However,
motor_vehicle: agricultural also allows for agricultural vehicles that
do not live or work there.
And what about a farmer who happens to go to his land in his normal car
over a track with sign C.2? I think this is allowed, so it seems it
shouldn't be tagged as access=no.

Note that there exist (at least in the law) also additional signs
'except agricultural traffic', which would mean exactly what you describe.

> With additional sign for bicycles or horses it would be bicycle or
> horse:yes.
Agree.
> Perhaps if there is a farmyard it would be useful to add private:yes. 
I'm not sure what you mean with this.
> On highway: residential it means that only persons who live there or
> (delivery:yes) have access. As described in the "Code de la route".
Agree. This can be captured by destination=yes.
> On tertiary roads (mainly in the east of the country you will find C.2
> with the sign "not when snowcovered" (pas en cas de neige ou de
> verglas). There it means that everybody can use it with restrictian
> during snowfall.  So there clearly no general restrictions to add, i
> didn't find a tag to describe  a restriction for snow, etc.
Interesting, I haven't seen these. Do you mean that they can always be
used, except in case of snow/ice, or that they can *only* be used in
case of snow/ice (as your wording suggests, but that would be kind of
strange)?

Could you ask the police officers you know whether it would be allowed
to use Rue Saint-Quirin to get to Rue de la Semois, and if not, why not?

Matthijs