Sidewalk
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A sidewalk is a path along the side of a road. A sidewalk may accommodate moderate changes in grade (height) and is normally separated from the vehicular section by a curb (British spelling: kerb). There may also be a strip of vegetation, grass or bushes or trees or a combination of these between the pedestrian section and the vehicular section (known as a parkway/tree lawn in the United States). [1]
How to map
Currently there are no accepted methods of mapping sidewalks, though there are two proposals:
- Proposed features/Sidewalk - adding sidewalk=both/left/right/none to the road itself
- Advantages
- Simple to add sidewalks with a single tag
- Easy for routers to support (though none support it now) and to give directions such as "Follow the sidewalk along Main Street"
- Disadvantages
- Difficult to provide fine levels of detail such as barrier=*, tactile_paving=*, kerb=*, etc
- Not currently supported by routing engines or renderers
- Advantages
- Proposed features/Sidewalk as separate way - creating the sidewalk as a separate way and using highway=footway, footway=sidewalk
- Advantages
- More (spatially) accurate representation of reality
- Allows for finer level of detail, such as adding barrier=*, tactile_paving=*, kerb=*, etc
- Works with existing routing engines and renderers
- Disadvantages
- More time consuming to map
- Can produce a more cluttered map (though this can be mitigated)
- Advantages