Book
1. Mandatory direction
A mandatory direction is a traffic rule or sign that tells drivers they must follow a specific direction — such as turning left, going straight, or following a designated route.
- Usually blue circular signs with a white arrow or symbol.
- The arrow shows the only allowed direction at that point.
- Prevent dangerous turns or wrong-way driving.
- Used at intersections, roundabouts, construction zones, or restricted areas.
Give way and mandatory left turn. (Debrzno, Poland) © Wikimedia.org/MOs810, CC BY-SA
Traffic rules