Turn Restrictions (present in RAMI product)

A Turn Restriction is a restriction based upon a vehicle manoeuvre. The types of restriction include a prohibitive driving instruction, a mandatory driving instruction and implicit restrictions. Prohibited instructions are indicated by road signs within a red circle, and examples include No U-turns, No Right Turn and No Left Turn. These can include exceptions to the instruction and are typically elements like Except for Buses. Mandatory driving instructions are indicated by road signs within a blue circle or are painted on the roadway, and examples include Turn Right and Ahead Only. Implicit restrictions occur where a turn is not signed as prohibited but would not be a normal manoeuvre, for example, where a road splits around a traffic island or at complex junctions where additional geometry has been captured to reflect the traffic flow. These are not differentiated from actual signed restrictions.

Examples of prohibitive driving instructions.

Examples of mandatory driving instructions.