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Calculate Curve Banking Angle and Superelevation (Pavement Cross Slope):
 
Calculation:
Designer/Checker:
   
Input:
 
 
   
Design Speed (MPH - mph or kph)
Radius of curve (R - ft or m)
   
   
   
   

   
 
Output:
 
 
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Banking Angle =  
Superelevation, e =  
   
For MPH in mph:
If MPH < 30, f = 0.16
If 50 >MPH >= 30, f = 0.16-0.01((MPH-30)/10)
If MPH >= 50, f = 0.14-0.02((MPH-50)/10)
*AASHTO recommends maximum e = 0.08
 
 



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