[OSM-newbies] Intersection tagging redux

[Steve Bennett]

On Sun, Dec 6, 2009 at 9:21 AM, James Ewen <ve6srv at gmail.com> wrote:

> Would a routing engine possibly mistake these common nodes as a valid
> routing choice, and try to get people to follow the routing in an
> obviously incorrect manner? Should these ways cross each other without
> common nodes? By not having a common node, there would be no way for a
> routing engine to make a mistake. These ways do indeed all cross at
> the exact same physical level on the pavement, with no grade
> separation, but it is not legal to change from one way to another at
> that point.
>

I just asked this identical question on talk (I think), and was persuaded
that it's best to always create a node if the ways cross, and to use turn
restrictions to prevent incorrect routing.

Steve
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