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(Supported by NJDOT Standards and Guidance Documents)

Roadway Design Calculators

NJDOT provides certain online calculators for use in roadway design. These are made available as standard tools and as a convenience for designers and others involved with road planning and design.

Roadway Design Calculators - U.S. Customary English Units

In the following calulators L is the length of vertical curve in feet, S is the sight distance in feet. V is speed in mph.

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  Department of Transportation
  P.O. Box 600
  Trenton, NJ 08625-0600
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  Last Updated:  March 11, 2015