Elevation View history

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Elevation is a less important attribute of Road types: it had no affect on routing.

In most cases the elevation should be defined "as is" in the real world. Standard "Ground level" or 0 or in case of a cross-over / fly-over the upper road should be defnied with an elevation one higher. In case of a tunnel the elevation could be -1 or -2.

Don't split segment to change the elevation for bridges. It is better to give the whole segment the same elevation.

See also the global Wiki page on Overpasses, Underpasses and Bridges.




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