[OSM-talk] bridge vs tunnel

Michael Collinson mike at ayeltd.biz
Mon Dec 29 17:12:07 UTC 2014

On 26/12/2014 22:46, Russ Nelson wrote:
> I think I've codified my rule for not-at-grade railway-highway
> interactions: if you could remove it with a crane, overhead is a
> bridge. If you need a backhoe, underneath is a tunnel.
> At least, that's the rule I plan to follow in the future. I've noticed
> a few places where I didn't follow that rule, and it looks funny.
Thanks, neat rule.  I will also try applying it to two bugbears of mine: 
streams under roads/railways and bicycle/footways under roads.


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