Proposal:Surface Quality

Surface Quality
Proposal status:	Abandoned (inactive)
Proposed by:	Zverik
Tagging:	surface:grade=* Data item
Applies to:
Definition:	Improved and universal quality marking
Statistics:
Rendered as:	Depends on a renderer, nothing by default
Draft started:	2011-05-24

Tagging

It should be clear just by looking at an example:

surface=asphalt
surface:grade=3

For every value of surface=* the corresponding surface:grade=* gradation is introduced with values ranging from 0 (very, very bad) to 3 (excellent). Their meaning is, briefly:

surface:grade	Description
3	Excellent quality, some minor faults may be present, but they don't affect driving comfort.
2	Quality is good enough for car, but cycling is not pleasant. A driver must be prepared for anything.
1	The road is drivable, but not at maximum permitted speed. There are places where a driver must slow down. Driving in car is not comfortable.
0	The worst quality, road is hardly drivable even on 4WD. Lots of holes, branches and such. Speed is minimal.

Of course, for different surfaces quality is measured differently. Below are documented grades for most used ones.

asphalt

surface:grade	Description	Photo
3	Smooth surface with no or parallel faults.
2	The surface is smooth, but with perpendicular faults, for example, between concrete blocks on which asphalt was laid. Occasional holes, easyly spotted at a distance. Possible колейность.
1	Definitely not fresh asphalt layer. Lots of holes, some of which can be spotted only after driving in them.
0	It is asphalt only by name. It can be spotted here and there, but mostly it is holes, sand, gravel and other stuff, a driver should proceed very carefully and at a minimum speed.

concrete

Also suitable for concrete:plates and concrete:lanes.

surface:grade	Description	Photo
3
2
1
0

compacted

surface:grade	Description	Photo
3
2
1
0

gravel

surface:grade	Description	Photo
3
2
1
0

ground

Also suits values of grass, sand, mud, earth, dirt. Tag value should probably be more generic (unpaved:grade?).

surface:grade	Description	Photo
3
2
1
0

See Also

• smoothness=*
• 4wd_only=yes
• Proposed features/Surface:all weather
• Proposed features/surface unification

Comments

Please use the Talk Page for discussion.

Voting

Will probably never happen. This page documents the tagging style the author uses, but it won't be approved because there are many other schemes for marking road quality.