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Tools

(Supported by NJDOT Standards and Guidance Documents)


Roadway Design Tool

Safe Speed For Horizontal Curves When
V is greater than 50 mph
Based on "A Policy on Geometric Design of Highways and Streets", 2001


U.S. Customary English Units

This program calculates Safe Speed for horizontal curves when V is greater than 50 mph. Source Reference

V = 0.5 ( -.03R + ( (.03R)2+ 4R((15E/100) + 3.6 )1/2)

Enter R and E

R = Radius of Horizontal Curve (ft.)

E = Superelevation
(percent)


 

Safe Speed for Horizontal Curve (mph)

 
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  Department of Transportation
  P.O. Box 600
  Trenton, NJ 08625-0600
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  Last Updated:  September 1, 2010