Department of Transportation

Roadway Design

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.

Last updated date: December 16, 2019 2:33 PM