Key:ford
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A small part of a highway where a waterway runs over it.
Highway property
Used combinations in
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| Tag:ford=yes | |
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| Status: | Proposed (under way) |
| Proposed by: | gormur |
| Tagging: | ford=yes / stepping_stones / <other> |
| Applies to: | nodes, ways |
| Definition: | A small part of a highway where a waterway runs over it. See also http://en.wikipedia.org/wiki/Ford_%28crossing%29 |
| Rendered as: | As the underlying highway=* plus some blueish styling |
| Draft start: | 2009-11-22 |
| RFC start: | 2009-12-01 |
| Vote start: | * |
| Vote end: | * |
Used on a way
Fords should be tagged with the same method as a bridge or a tunnel. That means the highway=* tag is left as the rest of that way, but a short section of it is tagged with ford=yes. The waterway and highway should have a shared node (junction). If the riverbank is drawn, the ford should generally start and end with shared nodes with the riverbank. If the approach (up and down to the riverbank) is much different from the ford itself, it would make sense to split the way and tag them appropriately. (incline=* might apply for example). Should the waterway/highway ways share any nodes? This is why highway=ford was previously used as a node where they crossed/connected.
Used on a node
Should be used when there is little or no information about the ford. Set ford=yes on the intersecting node between a highway and a waterway.
Useful tags
- surface=* Obvious values here would be concrete, paved, sand, gravel and mud etc.
- depth=* Normal depth you might encounter. Probably deeper during flood or when raining heavily. Perhaps even set to 0 for fords that are dry most of the year.
- layer=* Should be same as crossing road. That is _not set_ in most cases. You are both on the highway and in the waterway, and not separated logically as a stream under a bridge would be.
Example
http://www.openstreetmap.org/?lat=36.758113&lon=-4.110311&zoom=18&layers=B000FTT
Rendering
Same method as bridges and tunnels; the style of the highway + some styling. When used on a node, a symbol could be rendered using the same methods as with barriers). My suggestion for way styling is blue zig-zag line along the top of it.
Alternative values to the key
- ford=yes -- general purpose value
- ford=stepping_stones -- to specify what kind of ford it is.
Remarks
highway=ford should be deprecated.
See Also
flood_prone=* unlike fords are likely to be dangerous to cross if there is water across the roadway.
