Mandatory signs

A mandatory sign is a traffic sign that tells drivers what they must do. Instead of prohibiting actions, these signs impose obligations such as following a specific direction, using a particular lane, or keeping a minimum speed. Their purpose is to guide traffic safely and efficiently by ensuring that all road users follow the same required behavior in places where it is necessary for order and safety.

Passing left or right mandatory. Passing right mandatory. Mandatory right. Mandatory divided path for pedestrians and cyclists. Begin of a minimum speed.

1. Passing left or right mandatory

This traffic sign indicates passing left or right is mandatory. It means that traffic is allowed to pass on either the left or the right of an obstacle. Often used at traffic islands, splitter islands, or construction zones with enough space on both sides.

Passing left or right mandatory.

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2. Passing right mandatory

This traffic sign indicates passing right is mandatory. It means that all traffic must pass to the right of an obstacle, such as a traffic island, construction barrier, or roadwork. Passing on the left is prohibited unless otherwise directed. Commonly placed before medians, barriers, or roadworks.

Passing right mandatory.

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3. Mandatory right

This traffic sign indicates a mandatory right direction. It means that all traffic must turn right at the point where the sign is placed. Going straight or turning left is prohibited.

Mandatory right.

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4. Mandatory divided path for pedestrians and cyclists

This traffic sign indicates the begin of a divided path for pedestrians and cyclists. It means that there is a shared-use path that is physically or visually divided into two lanes: one for pedestrians and one for cyclists. Each user group must stay in their designated lane.

Mandatory divided path for pedestrians and cyclists.

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5. Begin of a minimum speed

This traffic sign indicates the begin of a minimum speed. It means that all vehicles must travel at or above a specified minimum speed — driving slower is prohibited, unless traffic, weather, or emergency conditions justify it. Aimed at preventing slow-moving vehicles from obstructing traffic. Exceptions allowed in case of danger, congestion, or poor conditions. Common Locations: motorways, tunnels, high-speed lanes or expressways.

Begin of a minimum speed.

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