A. Look well ahead for obstructions in the road, such as drains, pot-holes and parked cars, so that you do not have to swerve suddenly to avoid them
B. Leave plenty of room when passing parked of room when passing parked cars and watch out for doors being opened into your path
C. Take care near road humps narrowing and other traffic calming features. Do not ride along a drainage channel at the edge of the road to avoid such features
D. all of the above