R: [mkgmap-dev] [PATCH v2] - beware of the bollards!

Tue Jul 7 16:50:00 BST 2009

Hi Marco,

> Mark, may I suggest a totally different approach?
> 
> why not to use a couple of restriction relations?
> 
> a no_straight_on between the segment before (from) and after (to) the bollard node (via) and a second no_straight_on relation the way round.
> 
> Of course with the right "except": bicycle, foot, ...
>
> You could also invent an "internal" relation restriction like "no_passage"
> 
> The issue here seems that the "except" key does not foresees "foot".
> 
> Would it be feasible?

I don't think so because turn restrictions affect all traffic except
foot so you could not distinguish between a car and a bicycle.

Cheers,

Mark