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To allow median U-turns in both directions, break condition #2 by making the median segment (B) 52.49 ft (16 m) or longer
To allow a U-turn from only one direction, first setup the intersection to allow U-turns in both directions. Then, add a Junction Box, and restrict the prohibited U-turn route. As of 2017[update], a rank 5 user or above is required to install a Junction Box.
|Previously, unidirectional U-turn prohibition on a divided road was set up by breaking condition #3 of the U-turn prevention mechanism through the use of a micro-dogleg. As of 2017[update], Waze staff has expressed a preference that map editors use Junction Boxes in these situations.|