If N is the net difference of grades, S is the minimum overtaken sight distance in metres, the length (L) of a summit curve, is
If N is the algebraic difference of grades, S is the minimum sight distance in metres, the length (L) of a summit curve is
If N is the algebraic difference of grades, S is the head light beam distance in metres, the length (L) of a valley curve, is
If L is the length of a moving vehicle and R is the radius of curve, the extra mechanical width b to be provided on horizontal curves,
If W is the weight of a vehicle negotiating an upgrade 1 : S along a track having co-efficient of resistance `mu`, the tractive force T is given by