What is a Roundabout?

A roundabout is a type of circular intersection where traffic flows in one direction around a central island. Instead of stopping at traffic lights or four-way stops, drivers yield to traffic already in the circle, then enter and proceed to their desired exit. This design helps reduce severe collision types and keeps traffic moving more efficiently than traditional intersections.

Priority Rules in Swiss Roundabouts

In Switzerland, the fundamental rule for roundabouts is that traffic already circulating within the roundabout has priority. Drivers approaching a roundabout must yield to any vehicle already inside it, regardless of their direction of approach, unless specific road signs indicate otherwise. This differs significantly from the 'right before left' rule often applied at unmarked intersections in Switzerland, making it a critical point for the theory exam. Always look for the 'Give Way' sign (inverted triangle) and the 'Roundabout' sign (blue circle with white arrows) at the entrance, which confirm this priority rule.

Using Indicators Correctly in Swiss Roundabouts

Indicator usage in Swiss roundabouts has specific rules:

• When entering a roundabout: You must not use your indicator. Signaling upon entry can confuse other drivers, particularly those waiting to enter, who might misinterpret your signal as an intention to exit at the first junction.
• When exiting a roundabout: You must use your right indicator. Activate your right indicator as you pass the exit before the one you intend to take. This clearly signals your intention to leave the roundabout to both following traffic and vehicles waiting to enter.

Lane Discipline within a Roundabout

Most roundabouts in Switzerland are single-lane, simplifying navigation. However, larger roundabouts may have multiple lanes. When approaching a multi-lane roundabout:

• Choose your lane early: If you intend to take an early exit (e.g., the first or second), stay in the right-hand lane. For later exits, the left-hand lane might be appropriate, but always consult road markings and signs.
• Stay in your lane: Once in the roundabout, maintain your lane. Only change lanes if absolutely necessary and when it is safe to do so, indicating your intentions clearly.
• Prepare to exit: Move to the outermost lane well before your intended exit point, ensuring you can exit smoothly and safely.

Safety and Common Mistakes

Navigating roundabouts safely requires anticipation and adherence to rules:

• Speed: Reduce your speed on approach, allowing you time to assess circulating traffic and pedestrians.
• Pedestrians and Cyclists: Always be vigilant for pedestrians and cyclists, especially when entering and exiting. Yield to them if they are crossing your path, particularly at zebra crossings or designated cycle paths.
• Emergency Vehicles: Always yield to emergency vehicles with flashing lights and sirens, regardless of your position in or approaching the roundabout.
• Avoid stopping: Once inside a single-lane roundabout, avoid stopping unless traffic requires it or to give way to an emergency vehicle. The goal is continuous flow.

Roundabouts in the Swiss Theory Exam

The Swiss driving theory exam frequently tests knowledge of roundabout rules, particularly regarding priority and indicator use. You will encounter questions about:

• Who has priority when entering a roundabout?
• When should you use your indicator in a roundabout?
• Correct lane choice for different exits.
• Behavior towards pedestrians and cyclists. Mastering these specific Swiss regulations is crucial for a successful theory test result.