I've asked about this over on the tagging list as well, in case anyone wants to 
follow the conversation there. I've been getting mixed messages on this issue 
so far... at the least if the tag is kept as-is and OSRM fixed, the restriction 
wiki page should be changed to acknowledge the possibility of turns on 
relations beginning with 'no_'.


Cheers,

Nate

________________________________
From: Stewart C. Russell <scr...@gmail.com>
Sent: Wednesday, June 29, 2016 11:33:53 AM
To: talk-ca@openstreetmap.org
Subject: Re: [Talk-ca] restriction=no_right_turn_on_red causing routing 
problems in Toronto

On 2016-06-28 04:19 PM, Nathan Wessel wrote:
> It seems like conditional restrictions may be what we need.
>
> http://wiki.openstreetmap.org/wiki/Talk:Conditional_restrictions
>
> But it looks like we would be forging new ground if we went that
> direction. I don't see anything on that page about signals of any kind.
> (yet!)

OSRM seems to be programmatically narrow in its insistence on only
scanning the 'no_' part of the restriction. These are useful and clear
tags. Fix OSRM, not the map. Relations are already complex enough that
many mappers avoid them.

Coming from a country where the whole idea of turning on red is illegal
(and all pedestrian crossings are scramble crossings, as they should be)
I wonder if this is just a black swan to the developers?

cheers,
 Stewart


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