On Tue, 28 Jul 2009 10:34:00 +1000
Roy Wallace <waldo000...@gmail.com> wrote:

> 
> > A clearance tag could just as easily be misinterpreted as the maxheight tag.
> 
> I don't see how. "bridge=yes; clearance=2.8"...
> 
> Roy

Does this mean the bridge has a clearance of 2.8 or the road under the bridge 
has a clearance of 2.8.  To me this would suggest the bridge has a limit of 2.8 
ie vehicles travelling over the bridge can not be above 2.8 high.

I'd suggest that if the bridge has a height limit, ie clearance, then the 
bridge is tagged with max_height.

If the road under the bridge has a height limit, ie clearance, then the road is 
tagged.

Box bridges have height limits. Roads that pass under a bridge generally have 
height limits.

-- 
Cheers
Ross

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