Answer:
for moving straight - it is needed to have the reference points.
for turning right or left- Generally the extreme left or extreme right is taken as the key lane for turning.
Explanation:
for moving straight - it is needed to have the reference points. reference point can be considered as a point which can be at middle of the divider line on the both side of road. driver need to follow the reference point for straight drive
for turning right or left- Generally the extreme left or extreme right is taken as the key lane for turning. one should follow these lane for turning otherwise go for straight.
