Grades, Highway - Research Article from Macmillan Science Library: Mathematics

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This section contains 850 words
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Applications of Grade

When a new highway or road is being planned, its grade over its various sections is one of the key aspects that must be determined in advance. The grade of the road is very important for the safety of the motorists who will be using it. Most of us have experienced how a rolling bicycle has a tendency to pick up speed as it goes downhill, and how when going uphill the bicycle will slow down unless the cyclist pedals harder. The same situation must be considered when constructing modern highways.

If a grade is too steep, vehicle operators must use excessive braking when going downhill. In contrast, vehicle operators going uphill will have to slow down severely, possibly affecting traffic flow adversely. Grades are of great concern for vehicles carrying or pulling heavy loads, like semi-tractor trailers, or a family car pulling a camper...

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This section contains 850 words
(approx. 3 pages at 300 words per page)
Buy the Grades, Highway Encyclopedia Article
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Macmillan Science Library: Mathematics
Grades, Highway from Macmillan Science Library: Mathematics. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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