[OSM-talk] turn restriction checker

[Frederik Ramm]

Hi,

Franc Carter wrote:
> I hacked up a quick perl script to look for common problems in turn 
> restrictions
> (http://wiki.openstreetmap.org/index.php/Proposed_features/Routing:_turn_restrictions)
> that I am seeing.
> 
> It checks for:-
>   * missing from,to,via
>   * multiply defined from,to,via
>   * via not part of from and to

Would be great if it could also check this:

* a way may not be in any "from" or "to" role if it goes *through* the 
junction (because in that case the information would be incomplete - you 
would need to know which part of the way is meant!).

Nic has said that he uses the "restriction=..." tag to clarify these. I 
don't like that idea but if it is used widely then my above rule would 
have to be lifted for relations with a "restriction..." defined.

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"