On 7/01/2011 6:23 AM, Charlotte Wolter wrote:
Hello everyone,
In the U.S. most rural and some suburban areas have mostly two-lane
gravel roads. These are not tracks. They are regularly maintained,
usually by the county. They often follow the one-mile grid lines
common in the United States.
highway=unclassified, surface=unpaved (or surface=gravel if you like)
However, I haven't been able to find an equivalent in OSM tagging.
They are not tracks, which implies something opportunistic and not
maintained by government.
Just a tip: try to avoid seeing "implications" in the word used for a
tag. Look up the wiki and see what it says about highway=track. (Ok, in
this case it's not terribly clear, but anyway).
Come to think of it, it would be nice to have a better definition of
"track". I tend to think of it as a unpaved road with apparent tyre
ruts, maintained (if at all) by some sort of parks service, rather than
the body that maintains highways and residential roads. That's
admittedly not a watertight definition. Maybe something about a low
practical speed, poor quality etc.
The photo accompanying "unclassified" shows a narrow paved road like
many rural roads I have seen in the U.K. But, these are not
narrow--they usually are at least two lanes wide--and they are not paved.
Don't worry about the width. The distinguishing feature of an
unclassified is that it's less important than a tertiary, and is not a
residential. (Implicitly, it has a higher speed limit than a residential).
do we need something new for the United States?
Definitely not.
Steve
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