Mastering French Roundabouts: Rules, Lane Selection, and Yielding Regulations (Code de la route)

Navigating roundabouts is one of the most critical skills required to pass the French Category B driving theory exam (Examen de l'Éthique Générale or ETG) and to drive safely on French roads. France has the largest network of roundabouts in the world, with tens of thousands of these circular intersections designed to optimize traffic flow, reduce idling times, and decrease the severity of collisions.

To navigate them successfully, you must understand the distinction between different types of circular junctions, select the correct lane based on your intended destination, signal your intentions clearly, and remain highly vigilant of vulnerable road users like cyclists and pedestrians. This comprehensive guide covers all the legal rules under the French Code de la route and practical techniques needed to master roundabout navigation.

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The Core Priority Rules of French Roundabouts

To understand who has the right-of-way, you must first learn the legal and historical distinction between the two types of circular intersections found in France: the carrefour à sens giratoire and the traditional rond-point. While everyday drivers often use these terms interchangeably, their priority rules are fundamentally opposite, and this distinction is a frequent topic on the official driving theory exam.

Today, nearly all circular intersections in France are carrefours à sens giratoire. The classic rond-point is rare but still exists in specific historic urban locations, such as the famous Place de l'Étoile surrounding the Arc de Triomphe in Paris.

When approaching a modern roundabout (carrefour à sens giratoire), you will encounter a triangular warning sign with three curved arrows forming a circle (Sign A22b or AB25), often accompanied by a yield sign (Céder le passage) and a "Vous n'avez pas la priorité" (You do not have priority) sub-plate. On the road surface, a dashed yield line spans the width of the entry lane, marking the exact boundary where entering vehicles must wait if there is traffic inside the ring.

Yielding to Circulating Traffic (Article R415-3)

According to Article R415-3 of the Code de la route, drivers approaching a roundabout must slow down and yield to any vehicle already moving within the circular roadway.

• Assessment on Approach: As you near the entry point, scan the roundabout to your left. Observe the speed and position of the circulating vehicles.
• Continuous Flow: If there is a safe gap, you may enter without coming to a complete stop. However, if a vehicle is approaching from your left, you must stop behind the dashed yield line.
• Shared Liability: Entering a roundabout without yielding is a serious traffic violation that can cause side-impact collisions. If an accident occurs because an entering driver failed to yield, that driver is typically held 100% liable for the damage.

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Lane Selection Guidelines on Approach

Choosing the correct lane before entering a roundabout is essential for maintaining order and preventing collisions. In France, multi-lane roundabouts are common, and your position on approach is determined entirely by which exit you intend to take.

1. Taking the First Exit (Right Turn)

If you plan to exit the roundabout immediately at the first exit on your right, you must position your vehicle in the right-hand lane on the approach road. Keep to the outer edge of the roundabout as you circulate, and keep your right-hand turn signal on from the moment you approach until you exit.

2. Going Straight (Intermediate Exits)

If your destination is straight ahead (typically the second exit, representing a 12 o'clock position relative to where you entered), you should ideally use the right-hand lane on approach. If the roundabout has multiple lanes and traffic is heavy, you may also use the left-hand lane if local lane markings permit it. However, the right-hand lane remains the safest default choice because it avoids the need to cross lanes when exiting.

3. Turning Left or Making a U-Turn (Third or Subsequent Exits)

If you are taking an exit located past the halfway point (to your left, typically at the 9 o'clock position or further), you must position your vehicle in the left-hand lane on the approach road. Upon entering the roundabout, move towards the inner lane closest to the central island. This prevents you from blocking drivers who wish to take earlier exits.

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Correct Turn Signal (Clignotant) Etiquette

Using your direction indicators (clignotants) properly is not just a courtesy; it is a legal requirement under Article R416-1 of the Code de la route. Proper signaling allows other drivers, cyclists, and pedestrians to anticipate your movements, preventing unnecessary stops and maintaining traffic flow.

Common Signaling Mistakes to Avoid

• Signaling Right Too Early: If you are going straight (second exit) and turn your right indicator on before entering, drivers waiting at the first exit will assume you are turning there. They may pull out in front of you, causing a severe collision.
• No Indicator When Exiting: Failing to signal when leaving the roundabout forces waiting vehicles to remain stopped unnecessarily, causing traffic backups and increasing the risk of rear-end collisions.

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Protecting Vulnerable Road Users at Roundabouts

Roundabouts can be particularly hazardous for vulnerable road users, such as pedestrians (piétons) and cyclists (cyclistes). As a Category B driver, you bear a heightened responsibility to ensure their safety.

Yielding to Pedestrians at Exits (Article R415-10)

When exiting a roundabout, you will almost always encounter a pedestrian crossing (passage piéton) crossing the exit lane. Under French law, pedestrians who have stepped onto the crosswalk—or have clearly shown an intention to do so—have absolute priority.

You must be prepared to stop your vehicle within the roundabout exit lane to allow pedestrians to cross safely. Always check your front windshield and side pillars, as they can create blind spots that obscure pedestrians waiting at the curb.

Navigating Around Cyclists

Cyclists face unique challenges in roundabouts. Because they travel at lower speeds, they are highly vulnerable to being cut off or struck by exiting cars.

• The Outer Ring Hazard: Many roundabouts feature a designated cycle lane (bande cyclable) running along the outer perimeter. If you are exiting the roundabout, you must yield to any cyclist traveling in this cycle lane before crossing over it to exit.
• Blind Spot Verification (Angle Mort): Before turning right to exit, you must perform a direct shoulder check to your right to ensure a cyclist is not riding in your blind spot.
• Giving Space: If a cyclist is circulating within the main lane of the roundabout, do not attempt to overtake them within the tight curve. Maintain a safe following distance and allow them to navigate the intersection safely.

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Special Scenarios, Weather, and Edge Cases

A standard roundabout layout can become significantly more complex depending on environmental conditions, vehicle types, and urban infrastructure.

1. Tramway Crossings in Cities

In many French cities (such as Strasbourg, Bordeaux, Lyon, and Nantes), tramways run directly through the center of roundabouts.

2. Adverse Weather Conditions (Rain, Fog, Ice)

In heavy rain or icy conditions, the painted markings (arrowheads, lane dividers, and yield lines) inside a roundabout can become extremely slippery.

• Reduce your speed significantly before entering.
• Avoid sudden braking or sharp steering inputs while turning inside the ring, as this can cause your vehicle to skid.
• Increase your following distance behind the vehicle ahead to account for longer stopping distances.

3. Large Vehicles and Heavy Goods Vehicles (HGVs)

Buses, trucks, and vehicles towing trailers require a much wider turning radius. When navigating a roundabout, a large vehicle may need to occupy both lanes to complete its turn without its rear wheels mounting the curb or striking the central island.

• Give them space: Never attempt to drive alongside a heavy truck or bus inside a roundabout.
• Anticipate their path: Assume that a large vehicle in the left lane may need to swing wide into the right lane to exit.

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Common Violations, Penalties, and Exam Traps

Failing to navigate a roundabout correctly is a major cause of failure on the practical French driving exam and can result in severe legal penalties in daily driving.

Violation	Legal Consequence (Code de la route)	Hazard / Impact
Failure to Yield on Entry	€135 Fine, 4 Points deducted from licence	High risk of high-speed side-impact collisions.
Failure to Use Turn Signals	€35 Fine, 3 Points deducted from licence	Confuses other road users; causes traffic delays.
Failure to Yield to Pedestrians	Up to €135 Fine, 6 Points deducted, temporary licence suspension	Extreme risk of fatal pedestrian injury.
Cutting Across Lanes Inside Ring	Civil liability in accident, potential fine	Causes side-swipe collisions with vehicles in the outer lane.

Driving Exam Tips for the ETG

1. Look for the yield signs: On exam photos, always check the entry of the intersection. If you see a triangular yield sign pointing down, it is a carrefour à sens giratoire (yield to those inside). If there are no signs at all, it is a traditional rond-point (apply priority-to-the-right!).
2. Identify the indicator status: Look closely at the back of the cars in the exam diagrams. If a car is exiting but has no blinking orange lights, it is committing an infraction.
3. Scan for cyclists: Always check the right side mirrors of the vehicles in the diagrams to see if a cyclist is riding parallel to the exit lane.

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Concept Dependency & Next Steps

To master roundabout navigation, you should also review the following interrelated chapters in your study guide:

• Priority Rules & Intersections: To fully understand general yield principles and the priority-to-the-right rule.
• Road Markings & Lane Use: To learn how arrow markings and solid/dashed lines regulate lane discipline.
• Vulnerable Road Users: For deeper insights into pedestrian safety laws and sharing the road with cyclists.

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Glossary of Key Terms