Braking Distance (How To Calculate Braking Distance) - Civil Engineering

Thursday, November 22, 2018

Braking Distance (How To Calculate Braking Distance)

Braking Distance

It is the distance traversed by a vehicle between the points, at which brakes are applied and the point at which the vehicle comes to stop.

How To Calculate Braking Distance

Braking distance may be obtained by equating the work done in stopping the vehicle and the kinetic energy .If v is the design speed of vehicle in m/sec ,f is the coefficient of friction, W is the total weight of the vehicle and g is the acceleration due to gravity = 9.81 meter per second square, I is the braking distance then:
kinetic energy at design speed = mv2/2 = Wv2/2g

Work done against friction force in stopping the vehicle = f.W. I
f.W.I =  Wv2/2g
or, I = v2/2gf
If  V is the speed of vehicle in kilometer per hour(Kmph) ,then
How To Obtain Braking Distance
Braking Distance
[When (V) speed in Kmph then,v =0.278V]

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