<P> Some A-class and B - class roads in the Highlands are still single - track, although many sections have been widened for the sake of faster travel . In 2009, the A830 "Road to the Isles" and A851 on Skye have had their single - track sections replaced with higher - quality single - carriageway road . </P> <P> In remote backcountry areas around the world, particularly in mountains, many roads are single - track and unmarked . These include many U.S. Forest Service and logging roads in the United States . In Peru, the second of two overland transportation routes between Cuzco and Madre de Dios Region, a 300 km heavy - truck route, is a single - track road of gravel and dirt . </P> <P> When practical, it is usually considered better for the vehicle going downhill to yield the right of way by stopping at a wide spot . The reason seems to be that it may be harder for the vehicle going up to get started again . At least in California, it is also the vehicle going downhill that must back up, if it is too late to stop at a wide spot . </P> <P> Chicanes are often placed on residential streets as a more aesthetic means to slow - down cars . </P>

Who has right of way on a single track road
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