The driver of a vehicle intending to turn at an intersection shall do so as follows:
(a) Right turns. Both the approach for a right turn and a right turn shall be made as close as practicable to the right-hand curb or edge of the roadway.
(b) Left turns. The driver of a vehicle intending to turn left at any intersection shall approach the intersection in the extreme left lane lawfully available to traffic moving in the direction of the driver of such vehicle and after entering the intersection the left turn shall be made so as to leave the intersection in a lane lawfully available to traffic moving in such direction upon the roadway being entered.