S: (n) shoulder, berm (a narrow edge of land (usually unpaved) along the side of a road) "the car pulled off onto the shoulder"
S: (n) traffic circle, circle, rotary, roundabout (a road junction at which traffic streams circularly around a central island) "the accident blocked all traffic at the rotary"
S: (n) turnaround (an area sufficiently large for a vehicle to turn around)
S: (n) turnout, widening (a part of a road that has been widened to allow cars to pass or park)