[OSM-talk] zones for motorway/in town/outof town?

Mario Salvini salvini at t-online.de
Wed May 20 11:21:08 BST 2009


MP schrieb:
>>  a) motorway: that's very clear, therea are no or very high limits.
>>  b) "city" areas with limited speed and some restrictions
>>  c) everything else, mostly out of town.
>>     
>
> In Czech republic there are different rules for motorways inside
> "city" area (maxspeed=80) and outside (maxspeed=130). So case d)
>
> identifying a) is easy and if we are able to identify what is inside
> and outside city - b), we can identify roads and motorways
> inside/outside city.
>
> There was similar discussion on czech mailing list. One suggestion is
> to use administrative boundaries. There was suggestion to use
> landuse=residential, but that is not possible - often the "city" area
> is not corresponding to landuse=residential. Suggestion for
> administrative area is pretty good, but there are still some caveats -
> sometimes the boundary follow the road and in few cases, sign for "end
> of village" and sign for "beginning of village" from other side do not
> match (so basically, one side of the road is "inside" the village,
> while the other is not.)
>   
Would be cool, if you can add your czech traffic-zones to the proposal. 
http://wiki.openstreetmap.org/wiki/Proposed_features/trafficzone
>   
>> (In practice, the test for a "built up area" seems to be "does it have street lights?".)
>>     
>
> Test for street lights won't work, many small villages in Czech. Rep.
> are signes as build-up area (with all the implied speed limits and
> such), but they don't have street lights at all.
>
> Martin
>   

street-lights as a mark of build-up areas works in UK and Australia and 
maybe some other Commonwealth-Counties.

--
 Mario




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