[OSM-talk] [talk-au] maxheight/height

[Martin Koppenhoefer]

2009/7/28 Liz <edodd at billiau.net>:
> To return to the bridge
> the following attributes of the bridge and the road underneath it all need to
> be considered
a)> Height of bridge
height tag on bridge way

b)> Height above sea level of the bridge
ele tag on bridge way

c)> Max height of the arch of the bridge above the roadway
-> a)

d)> Max height of a vehicle which can drive under the bridge, which if
the bridge
maxheight tag on the way under the bridge
if you want to distinguish this from e), use a new tag (i.e. illegal
but possible, e.g. "clearance"), but still on the way under the
bridge.

e)> Max height of a vehicle which the engineer said was permitted to drive under
> the bridge
maxheight tag on the way under the bridge

If you want to explain explicitly in the data, why there is a height
restriction on the way, put all involved ways in a bridge-relation.

cheers,
Martin