France’s most dangerous motorways – and how to stay safe on them

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A new study by insurer Luko has identified French roads with the highest numbers of accidents, many of which are frequently used by holidaymakers

The company analysed more than 500,000 records from the Interior Ministry covering the period from 2020 to 2024

It is important to note that many factors affect the likelihood of a road accident, and that the Luko figures do not reflect the individual risk of having a collision on each road

The top-ranking road for accidents, for example, the Autoroute du Soleil, is also France’s busiest motorway, according to a 2024 analysis by Carbu.fr of traffic data published by France’s Ministry of Ecological Transition.At the same time, only one other motorway in the top five for accidents, the A13, also ranked among the busiest roads. (Although it is worth noting that the Carbu.fr analysis ignored non-toll roads, some of which appear in the ranking below.)   

Meanwhile, a representative from Sécurité routière, France’s road safety authority, told The Connexion that motorways are actually the safest type of road in the country. They saidthat départementales and other roads outside built-up areas have higher accident rates than motorways. 

Here are the five most dangerous motorways according to the accident data studied by Luko:

1. Autoroute du Soleil (A6 and A7)

The A6 and A7 motorways, known as the Autoroute du Soleil, topped the list

The route, which stretches 773km and connects Paris with Lyon and Marseille, recorded 8,186 collisions over five years, resulting in 4,102 injuries and 126 deaths

It is a major route for motorists travelling south towards the Mediterranean coast, especially during the holiday periods

Sécurité routière’s representative said while more traffic generally creates greater risk, congestion can sometimes reduce the number of accidents because vehicles are travelling more slowly

2. Paris orbital (A86)

Coming second was the A86, an orbital motorway around the greater Paris region which connects towns including Nanterre, Créteil and Versailles. It recorded 5,554 collisions

These included 29 deaths, 152 people requiring hospital treatment and 2,639 people with less serious injuries

However, despite coming second, it has a higher concentration of accidents than the Autoroute du Soleil because it is considerably shorter, covering around 80km

This amounts to almost 14 collisions per kilometre each year

3. Francilienne

Third was the 160km Francilienne, another major road network circling the Paris region, which recorded 4,159 collisions. The route, which is made up of sections of motorway and national roads, saw a total of 28 people killed and 2,359 injured during the period covered. 

4. Autoroute de l’Est (A4)

The A4, or Autoroute de l’Est, came fourth. It connects Paris with Strasbourg

These included 66 fatal collisions and 1,897 injuries, of which 201 required hospital treatment

5.Autoroute de Normandie (A13)

Finally, the A13, or Autoroute de Normandie, completed the list. It connects Paris with Normandy ns

A total of 47 collisions were fatal, while 1,735 people were injured

The route is particularly busy with holidaymakers travelling from Paris towards Normandy’s coast and seaside resorts

Which regions have the most road accidents?

The study also compared accident figures across France’s regions

Île-de-France ranked first, recording 178,708 collisions between 2020 and 2024. However, the region’s high population and concentration of traffic around Paris are likely to contribute to it topping the ranking

It was followed by Auvergne-Rhône-Alpes, with 67,778 collisions, Provence-Alpes-Côte d’Azur, with 55,737, Nouvelle-Aquitaine, with 48,434 and Occitanie, with 40,205

Meanwhile, although Île-de-France had the most collisions, Auvergne-Rhône-Alpes recorded the highest number of road deaths, with 1,904 over the five-year period

The region also includes sections of the Autoroute du Soleil, which recorded the highest number of collisions

What are the main causes of road accidents in France?

Sécurité routière’s representative pointed to “a leading trio” of factors behind road accidents: speed, alcohol and drugs

They also highlighted the growing concern around the misuse of nitrous oxide, known in France as protoxyde d’azote

The gas, sold in canisters for making whipped cream, is sometimes inhaled by young people to get high. The representative said it can affect people’s abilities and make driving dangerous. 

Another important factor is distraction caused by phones. They also identified drowsiness as a concern on motorways, where long journeys can leave drivers tired

On the other hand, they said that when roads are in poor condition, have infrastructure problems or bad weather makes them difficult to navigate, drivers often become more alert and slow down. As a result, these issues do not necessarily lead to more accidents

Tips for safer driving on French roads

With the Christmas holidays approaching and roads set to become busy once again with holiday departures and returns, there are several precautions you can take before setting off on your journey

Check your car

Before departing, it is important to check your car’s condition to make sure it is safe to drive and ready for the journey

Check traffic conditions

You should also check traffic conditions on the day of your journey, ideally a few hours before departing

You can consult the government’sBison Futé website for traffic forecasts, congestion information and suggested alternative routes

Take regular breaks

You should stop at least every two hours when making a long journey. This gives you a chance to rest and regain concentration

Fatigue can affect your concentration and reaction times, increasing the risk of an accident. Avoid setting off when you are tired and take additional breaks if necessary

Know the speed limits

The standard motorway speed limit in France is 130km/h, falling to 110km/h in rainy conditions

On dual carriageways separated by a central reservation, the usual limit is 110km/h, falling to 100km/h in rain

The standard limit on other roads outside built-up areas is 80km/h, although some sections are signed at 90km/h

The limit in built-up areas is generally 50km/h, unless otherwise indicated

When visibility falls below 50m, the maximum speed is 50km/h on all roads

You must also adjust your speed to suit road and weather conditions, even when travelling below the legal limit

Keep a safe distance

Make sure you leave enough space between your car and the vehicle in front, especially when there is heavy traffic on the motorway

Avoid sudden braking or lane changes, and use your indicators in advance when overtaking or changing lanes

Do not use your phone while driving

Using your phone while driving is not only dangerous but also prohibited in France, even when you are stopped in traffic

You should also avoid wearing headphones or earphones behind the wheel, as these are prohibited in France

Never drive after drinking alcohol

The legal blood alcohol limit is 0.5g per litre in France, compared with 0.8g in England, Wales and Northern Ireland

For drivers with a probationary licence, the limit is lower, at 0.2g per litre

Regardless of the legal limit, you should never get behind the wheel if you have been drinking. Alcohol can significantly reduce your reaction times, increasing the risk of an accident

Carry the required safety equipment

You must have a high-visibility safety vest, which should be accessible from inside your car, and a warning triangle

You should also check that you have your driving licence, vehicle registration document (certificat d’immatriculation) and insurance information before setting off

Finally, if you are travelling during the winter holidays, check whether your destination or route includes areaswhere winter tyres or snow chains are mandatory

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Source: www.connexionfrance.com