[Routing] Missing a turn?

[Colin Smale]

This is probably triggered by the fact that there are two legs of the 
junction named Thornton Lane which are assumed to form the 
straight-through route, making Main Street a "side road".

Mkgmap recognises a relation with type=through_route, having two ways 
and a node as members (roles not needed) for exactly this case. It works 
fine in mkgmap, but I don't believe it is documented anywhere properly 
at the moment.

Colin

On 24/11/2012 18:14, Philip Barnes wrote:
> I have been trying to fix this routing problem reported on mapdust,
> http://www.mapdust.com/detail/3004250.
>
> On OSM, it can be seen here http://osm.org/go/eu5TeWZR.
>
>
> Despite its minimal description, I can see exactly what the problem is.
> Thornton Lane, from the south continues into Main Street. Thornton Lane
> from the north gives way at the junction. The problem is that routers
> ignore this turn, I know it is virtually straight, but it is a turn.
>
> Travelling north, http://osrm.at/1MH, in the absence of a turn
> instruction drivers are likely to continue onto Main Street.
>
> Is there a way to tag this?
>
> Thanks Phil
>
>
>
>
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