The driver is the key factor is most of the accidents. His behaviour influences and controls the vehicle and he himself is controlled by his personality, training and attitude. Table 1 reflects the statistics of the causes of accidents of DTC city services in 1988-89. It can be concluded from Table 1 that the driver of vehicles is responsible for more than 80 percent of the total number of accidents. In a traffic situation a vehicle is no more safe if the driver is inefficient.
Human failures are responsible for road accidents.
A safe driving depends on following abilities of a driver. Alertness in perceiving a danger in the road and reacting to it quickly. Accuracy of vision. A broad range of vision to take note of events taking place on either side of the road without turning head in either direction. Ability to perceive distance between two moving objects and their relative position in space.