[OSM-talk] 2 divided carriage-ways meeting at traffic lights.

[Alex S.]

simon at mungewell.org wrote:
> PPS. What's the best way to mark pedestrian overpasses/foot bridges? 

highway=foot
bridge=yes
layer=1

 > Can you specify the height restriction for road underneath?

Sure.  Place a node on the road under the bridge, and mark the node with 
"maxheight=".  Assumed to be meters.
http://wiki.openstreetmap.org/index.php/Key:access