[Tagging] [Talk-us] stop signs

Peter Wendorff wendorff at uni-paderborn.de
Tue Oct 26 19:23:39 BST 2010


Am 26.10.2010 17:50, schrieb M∡rtin Koppenhoefer:
> 2010/10/26 Nathan Edgars II<neroute2 at gmail.com>:
>> You'd probably need a relation to assign each stop sign to the street.
>> This seems like a lot of work for something so common.
> no, you wouldn't need any relation and would give the work over to the router.
While I agree completely at avoiding relations, that's a hard task for 
the router.
It's extremly much work to take in account data combined with the data 
you need only via the coordinates as source.

For a stop sign I would add these as node at the street, as it's 
proposed - and without tagging the direction it has to be considered.
With this approach a router has to calculate what direction the sign 
applies, but the street is known.

Tagging the street sign (with pole and painted metal plate) is also a 
good idea - it's a barrier for pedestrian, a pole where a cyclist can 
lock his bike perhaps and much else; but it's not useful for routing as 
the preprocessing is very expensive.

regards
Peter



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