[OSRM-talk] Traffic Signal Penalties

[Emil Tin]

the current implemenation does no grouping of signals.

maybe you already know this, but it's not enough to  just insert a node at the right position - it needs to be part of the way.
it's possible that you can insert several nodes (as part of a way) on the same coordinate, although that would lead to segment with length zero. you will have to see if that breaks something.

emil


On Apr 16, 2013, at 23:31 , Jeffrey Mealo <jmealo at stringtheoryschools.com> wrote:

> Hello,
> 
> I was wondering if I insert multiple traffic signal nodes at the same coordinates to indicate that multiple crimes occurred there. Would that incur n number of penalties, or, would it only incur one since they have the same coordinates?
> 
> Workflow:
> Reduce 609,000 crimes to 203,000 unique points
> I call /nearest via OSRM's REST API to "snap" each unique point to the road network
> Generate an OSM change set that specifies a traffic signal node for each of the 603,000 crimes, using the "snapped" coordinates
> I would like to weigh the traffic signal using tags according to how many crimes; but it looks like that's a todo.
> 
> Regards,
> 
> Jeffrey Mealo
> SafestWay
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