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See this photo:

http://www.tbssus.com/1240586401_Picture_425.jpg

Often found leading up to a bridge (overpass). This seems similar to a viaduct, but the viaduct examples I've seen are open underneath. (see http://help.openstreetmap.org/questions/4363/how-do-i-tag-elevated-highways-and-roads)

The other closest physical description is an 'embankment' but the rendering with 'spikes' on the side would be inappropriate since the walls are vertical.

asked 14 Nov '11, 22:01

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scottyc
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You could draw a parallel way on either side of the road and use [barrier=retaining_wall]. Draw it in the direction so that the lower side is on right side of way direction.

See http://wiki.openstreetmap.org/wiki/Tag:barrier%3Dretaining_wall

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answered 15 Nov '11, 06:15

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wolftracker
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edited 15 Nov '11, 07:56

LM_1's gravatar image

LM_1
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Map them as barrier=retaining_wall going along the road, under the bridge and than back (one way, see image), do not forget on correct level numbers. Tagging scheme Embankment should not be needed than.

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answered 15 Nov '11, 08:12

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LM_1
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While that works, I wonder what is the practical use of tagging this feature at all ? To generate a 3d rendering ? So that an off-road routing engine avoids crossing the road there ? In both cases, I'd be surprised if any existing software made proper use of the information.

(15 Nov '11, 13:17) Vincent de P... ♦
3

I wonder what is the practical use of tagging this feature at all?

"Because it's there"?

(15 Nov '11, 13:23) SomeoneElse ♦
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question asked: 14 Nov '11, 22:01

question was seen: 4,629 times

last updated: 15 Nov '11, 13:23

NOTICE: help.openstreetmap.org is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum