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Calculate Braking Distance:
 
Calculation:
Designer/Checker:
 
Input:
 

 
 
Initial vehicle speed when braking (MPH1 - mph or kph)
Final vehicle speed after braking (MPH2 - mph or kph)
Vehicle deceleration rate (a - ft/s^2 or m/s^2, AASHTO default value is 11.2 ft/s^2)
Grade of Road ( G - %, downhill is negative)
   
     
   
   
Output:  
 
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Braking Distance, SB =
 
 
 



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