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How to determine tertiary road types suitable for car driving? |
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It depends on the area in which your are doing your tests. In e.g. Western Europe, you can assume that all tertiary roads (tagged with highway=tertiary) are suitable for cars. You won't need a 4x4 to drive them. But I thought that you can assume that tertiary roads are suitable for car driving all over the world, but not all roads can be driven with a sedan. For other parts of the world, where the road network is not paved, you might look at other properties such as smoothness. But this tag might be missing. It is also a rather subjective tag, so it might be hard to determine whether a specific vehicle can pass the road. Other tags that might be important are maxweight or maxwidth, especially for bridges. 2
I'd suggest the "surface" tag as the one most likely to have something useful in it worldwide.
(19 Aug '17, 07:34)
SomeoneElse ♦
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