Arnoniem wrote:just noticed a 168.6 angle gets purple as well.

But on the angles I've done tests with, (without checking the first decimal), a 169 angle still gave a turn left. A 170 degr was a uturn prompt.

The u-turn angle in use currently is 168.24 with a "gray zone" ±0.2 degrees.

These values are based on my multiple map experiments performed last week.

The recent series of these experiments is

still on the map and all examples matches the current values:

[ img ]The anomalies - which were a basis for a gray (in fact yellow

) zone approximation - has been observed so far just for

the two unselected examples in the above picture.

Could you post the permalinks to examples you mention that violates current rules?

Together we can find better approximation of a u-turn and/or a gray zone angles.