1 in 30

1 in 36

1 in 48

1 in 60

total reaction time of driver

speed of vehicle

efficiency of brakes

all of these

slipping

skidding

turning

revolving

rough

dry

smooth and dry

smooth and wet

rougher than the traffic lanes

smoother than the traffic lanes

of same colour as that of the pave-ment

of very low load bearing capacity