Tag:surface=compacted
 surface = compacted
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| Description |
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Surface made of artificially compacted gravel, sand and very fine particles.  
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| Group: properties |
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| Useful combination |
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| Status: de facto |
| Tools for this tag |
surface=compacted is made of a mixture of coarse, fine and very fine mineral aggregate (e.g. 0-20 mm diameter, from dust to gravel), typically mechanically compacted with a roller, vibratory plate, or equivalent during construction or maintenance, so the visible pieces become firmly embedded in the fine mass and the resulting surface reliably stable.
Chiefly used to improve minor and countryside roads, it is sometimes known by its historical precedent as 
water-bound macadam. Such roads are called "gravel road" in some parts of the world, but compacted is more precise than gravel.
It is the best sort of road surface short of paving with asphalt or concrete. It degrades quicker though. Roads with slight degradation – some potholes, slight accumulation of dirt or loss of small amounts of material remain surface=compacted.
The smoothness=* key may be used to describe surface quality in more detail. Compacted roads are typically represented by grade2 on the tracktype=* scale.
Examples
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High-quality compacted path. Note scooter with small wheels comfortable riding on it -
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Counterexamples
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Temporary road - there is some fine material present, but coarse gravel dominates,surface=gravelby community decision even though compacted by heavy lorry tyres.
