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{{@|Allowing median U-turns}}: fix link
* To allow median U-turns in both directions, break condition #2 by making the median segment (B) 16 meters (52.5 feet) or ''longer''
* To allow a U-turn from only one direction, first set up U-turn prevention for both directions. Break condition #3 on the side where U-turns are allowed. Increase or decrease the angles so that the in and out segments (A and C) are [[#Checking for parallel incoming and outgoing segments|not parallel]]. A [[Glossary#mDL|micro-dogleg]] can be used to change the angle without changing the appearance of segment.
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[[File:U-turn selective Uturn prevention.png|center]]