U-Turns
The Waze Map Editor allows the enabling or restricting of U-turns using the green or red u-turn icons. U-Turns are legal in maryland with the following restrictions:
MD Transportation Code § 21-402(b) Vehicle turning left or making U-turn
(b) U-turn. -- If the driver of a vehicle intends to turn to go in the opposite direction, the driver shall yield the right-of-way to any approaching vehicle that is so near as to be an immediate danger.
MD Transportation Code § 21-602 U-turn on curve or crest of grade prohibited
(a) Curves. -- The driver of a vehicle on any curve may not turn to go in the opposite direction if the vehicle cannot be seen by the driver of any other vehicle that is within 500 feet and approaching from either direction.
(b) Crests. -- The driver of a vehicle on or approaching the crest of any grade may not turn to go in the opposite direction if the vehicle cannot be seen by the driver of any other vehicle that is within 500 feet and approaching from either direction.