Turn Restrictions
Turn Restrictions (TR's) are described on the Junction Arrows page.
For an explanation on time-based segment restriction (TBSR) see the text on road segment Restrictions.
Restricted Turn 
Indicated with a red arrow. Prohibits routing from one segment to another through that junction.
Enabled Turn 
Indicated with a green arrow. Permits routing from one segment to another through that junction.
Example partial restricted turn
