[OSM-talk] Removing redundant routing instructions

Steve Doerr doerr.stephen at gmail.com
Mon Apr 27 08:06:15 UTC 2015


On 26/04/2015 12:35, Rob Nickerson wrote:

> In the UK (particularly in rural areas) it is common to find a road 
> that turns 90 degrees to the left or right without a junction (that is 
> the road just continues and white lines mark it as such). Meanwhile 
> another road may come in from the other side with a 'give way' style 
> junction.

One simple way of representing this situation is to place give_way nodes 
on the subsidiary roads. Whether any routers or renderers make use of 
these to deduce that a particular route through the junction is the 
'through route', I don't know.

-- 
Steve

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