Translations:Routing penalties/Controlling U-turn penalties/11/en

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Straight median segments link to this section

If the median segment is straight, sum the two angles making up the U-turn:

  1. The angle between the incoming and median segments (between A and B)
  2. The angle between the median and outgoing segments (between B and C)

The in and out segments (A and C) are considered parallel if the sum is between 175º and 185º.

U-turn Parallel Check Straight.png
The short 14m median segment in the above examples satisfies condition #2 for U-turn prevention.