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Bypass (road)




A bypass is a Road or Highway that avoids (bypasses) a built-up area, town, or village, to let through Traffic flow without interference from local traffic, to reduce Congestion in the built-up area, and to improve Road Safety .

In the Interstate Highway system in the USA, bypasses and loops are designated with a three digit number beginning with an even digit.

If there are no strong land use controls, buildings are built along a bypass, converting it into an ordinary town road, and the bypass may eventually become as congested as the local streets it was intended to avoid.

The idea of bypasses predates the use of cars. The first (northern) London bypass, between Paddington and Islington (now Marylebone Road ), was started in 1756.

The book The Hitchhiker's Guide To The Galaxy mentions bypasses. It says "Bypasses are devices which allow some people to drive from point A to point B very fast whilst other people dash from point B to point A very fast. People living at point C, being a point directly in between, are often given to wonder what's so great about point A that so many people of point B are so keen to get there, and what's so great about point B that so many people of point A are so keen to get there. They often wish that people would just once and for all work out where the hell they wanted to be."