Key:embankment
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A raised bank to carry a road, railway, or canal across a low-lying or wet area.
Properties
Used combinations in
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Description
In transportation an embankment is a raised bank to carry a road, railway, or canal across a low-lying or wet area. If this low-lying area is permanently or tidally flooded, then the raised bank is called a causeway.
It can also be an artificial bank raised above the immediately-surrounding land to redirect or prevent flooding by a river, lake or sea. See also: Proposed_features/Dyke (sic).
Usage
Add embankment=yes to a way that is already tagged with a highway=*, railway=* or waterway=* tag.
When micro-mapping, you can also draw two parallel ways and add embankment=yes to both. See below.
Rendering
Single line embankments
Embankments that share a way with a highway, railway or waterway should be rendered with "spikes" on both sides. (Currently only in Osmarender.)
Currently Osmarender treats man_made=dyke, man_made=dike, man_made=levee and man_made=embankment the same as embankment=yes, except for the colour.
Micro-mapped embankments
These embankments should be rendered with the left-hand side of the way being the high side and the right-hand side being the low side. (Supported by OSM Mapnik but not Osmarender as of September 2010)
- To represent a raised finger of land (as in the illustration): draw two ways bordering the raised land, each tagged embankment=yes and going in opposite directions.
- To present a banked enclosure (such as an iron-age hill fort): draw two ways with the outer way travelling anticlockwise and the inner way clockwise. Additional ways can be used to present ditches, scarps, aprons and terraces in large sites.
