On Tue, Jul 8, 2014 at 12:00 PM, Jesse Crawford <[email protected]> wrote: > > As a second but similar question, off-highway vehicles are a popular > pasttime here and there are many tracks intended for ATVs or dirtbikes, not > wide enough for SUVs. Is there a best practice for tagging these types of > paths? >
I have the same question, having just visited a region with numerous ranch "roads" exactly the width of the tires on an ATV, but too narrow for a regular car or truck. Tagging these with *highway=track* would be misleading, as would *highway=path*. An ATV has a track width of about 30 inches (from wheel to wheel). The three common dirt road widths around here are: car sized, ATV sized, motorcycle sized. --- Also many many "4wd" roads are perfectly passable by 2wd passenger cars during good weather. The issue that stops a 2wd car is during dry weather is a need for "high clearance" or the presence of deep sand. In determining the passibility of a road the important characteristics seem to be: - Width [minimum] - Surface firmness (mud, gravel, sand) [typical & worst case] - Clearance required (rutting, jutting rocks) [typical & worst case]. - Snow accumulation [season] I've taken a low clearance 2wd car on many a 4wd road. But not in bad weather. And not all 4wd roads due to either clearance or surface type. There are no hard lines here: it depends on the skill of the driver, the speed, the willingness to move rocks out of the way, and the season. A high clearance 2wd car, with a skilled driver, can tackle almost anything that resembles a road. Often a short statement makes the road condition clear: description=Snow into early July or so. Deep ruts form in winter, but are generally graded smooth in early spring.
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