User:Rhhsmits/Smoothness details
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This table summarizes references and rules of thumb to classify the surface quality or evenness of a way more objectively with smoothness=*. These guidelines have been developed for streets and paths in urban areas in Central Europe, but can be applied anywhere.
| excellent | good | intermediate | bad | very_bad | |
|---|---|---|---|---|---|
| Surface | paved and smooth | paved with damage or unpaved, rather rough |
large damage and very rough | ||
| without problems/ideal for vehicle/tyre kind |
roller blades, skate board | racing bike | city bike, wheelchair, stroller | normal car, trekking bike | mountain bike |
| rolling properties | excellent | very good | average | bad | very bad |
| speed (for bicycle) |
not affected | not affected | somewhat reduced | clearly reduced | very low |
| speed (for car) |
not affected | not affected | somewhat reduced (50-90% of what it would be on a smooth road) | clearly reduced (<50% of what it would be on a smooth road) | very low (<20 km/h) |
| speed (for roller blades) |
not affected | somewhat reduced | moderately reduced | very low | not useable |
| road damage (esp. for asphalt) |
none | very little | regularly | much | all over the place |
| vibrations | none | very little | noticable | all the time | - |
| asphalt |  |
 |
 |
 |
 |
| sett | - | - |  |
 |
 |
| paving_stones | - |  |
 |
 |
? |
| concrete:plates | - |  |
 |
 |
- |
| compacted | - | ? |  |
 |
? |
| gravel | - | - | ? |  |
|