[OSM-talk] prohibited manoeuvres

[Scott Waye]

Can't say without an example.

A Morris wrote:

> Prohibited manoeuvres can span many nodes though, could your scheme 
> cope with that?
>
>
> On 2/7/07, *Scott Waye* <scott at waye.co.uk <mailto:scott at waye.co.uk>> 
> wrote:
>
>     I much prefer putting tags on the node:
>
>     <node>
>        <no_turn from="seg_id_x" to_seg="seg_id_y">
>
>     I have implemented an A* algorithm for osm and I think this would
>     be the
>     easiest one to incorporate.  Anything with "left"s, "fourth left", is
>     just a pain.
>
>     Andy Allan wrote:
>
>     >On 2/5/07, A Morris <aledmorris2 at gmail.com
>     <mailto:aledmorris2 at gmail.com>> wrote:
>     >
>     >
>     >>How about this:
>     >>
>     >>
>     >>
>     >
>     >See
>     http://wiki.openstreetmap.org/index.php/Proposed_features/Routing:_turn_restrictions
>     >for the non-concluded discussions. As for an example of a more
>     >complicated restriction, here's one from where I live:
>     >
>     >No right turn between 8am-7pm (except buses and cycles) - I should
>     >really pop over and grab a photo of it.
>     >
>     >If you're willing to take this challenge on, my advice would be to
>     >gather as many real-life restrictions ( i.e. photographs) as possible
>     >BEFORE coming up with a solution, otherwise you'll end up bolting on
>     >quick fixes as you go along. And be careful, plans have been
>     suggested
>     >a number of times to remove segments from OSM at some point.
>     >
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>     >
>     >
>
>