Historical background
Weaving through traffic was tested in France for five years in a traffic trial. Until then, weaving through traffic was not explicitly regulated in France, but was tolerated in many places. This trial ran on eleven selected routes and ended in January 2021. Although the practice was positively received by many road users, the investigations revealed a 12 percent increase in accidents involving motorized two-wheelers. At the same time, the number of accidents on other roads in the country fell by 10 percent.
These results initially led to a ban on filtering in 2021, with fines of €135 and three points on the driver’s license imposed for violations. This ban triggered nationwide protests by thousands of motorcyclists who demanded legalization. The Federation of “Motards en Colère” (FFMC) in particular campaigned vehemently for the rights of riders. They criticized the fact that the test was not sufficiently visible to road users on certain routes, so that road users could not expect filtering motorcycles and collisions also occurred as a result of cars changing lanes.
As a result, the French government announced a new study to ensure that filtering can take place under safe conditions. The planned measures included clear signage to make motorists aware of motorcyclists’ behavior. In addition, improved data collection should help to gain more accurate findings.
It is interesting to note that the studies were originally due to be completed by December 31, 2024. However, at the beginning of January 2025, the authorities announced that the trials would be extended until the middle of the year. A few days later, the final decision came as a surprise: lane filtering will become legal – under clearly defined conditions.
What does lane filtering actually mean?
Lane filtering describes the behavior in which motorcyclists drive between the stationary or slow-moving queues of cars on multi-lane roads in order to avoid traffic jams. This technique is already practiced in many countries, including Spain, Italy and California, and is used to increase traffic efficiency. By allowing motorcycles to bypass traffic jams, more space is left for cars, which should ease the overall situation on the roads.
Which vehicles are allowed to filter in France?
The new regulation only allows lane filtering for two- and three-wheeled vehicles that do not exceed certain dimensions. Specifically, only motorcycles, scooters and three-wheel scooters that are narrower than one meter (1,000 mm) are allowed to participate. This easily includes most motorcycles. Vehicles such as the Piaggio MP3 (width: approx. 800 mm) also meet this requirement.
Vehicles wider than one meter are not allowed to filter. A classic example is the Ural Gear Up with sidecar, which at almost 1.6 meters wide is well over the permitted limit.
Speed specifications for lane filtering
An important restriction of the new regulation concerns speeds. Lane filtering is only permitted on roads where the maximum permitted speed is at least 70 km/h (approx. 43.4 mph). Drivers must also adhere to certain speed limits when filtering:
- The maximum speed for filtering motorcycles is 50 km/h (approx. 31 mph).
- If traffic comes to a complete stop, the filtering vehicle may travel at a maximum speed of 30 km/h (approx. 18.6 mph).
Additional rules for lane filtering
In addition to the speed limits, there are other detailed rules that drivers must adhere to in order to ensure that lane filtering is carried out in an orderly and safe manner:
- permitted lanes: lane filtering is only permitted within the two left-hand lanes. Drivers may not use other lanes to pass between vehicles.
- road conditions: lane filtering is prohibited if there is construction work on the road or if the road surface is affected by snow or ice.
- signaling: Before starting lane filtering, drivers must clearly indicate their intention by setting the blinker. This is to inform other road users in good time.
- no overtaking under filters: Filtering motorcycles must not overtake other filtering vehicles. This is to prevent dangerous situations caused by sudden lane changes.
- return to the flow of traffic: As soon as the surrounding traffic is traveling faster than the maximum permitted filtering speed, drivers must merge back into the regular lane and stop filtering. Here too, the blinker must be used to indicate to other drivers that they are merging.
- Penalties for infringements: Anyone who disregards the lane filtering requirements risks severe penalties. These include fines, points in the French driving aptitude system and, in serious cases, even temporary withdrawal of the driver’s license.
Why was lane filtering legalized?
The French government’s decision is based on the positive results of years of studies. Studies have shown that correct lane filtering does not increase the risk of accidents for motorcyclists or other road users. At the same time, it helps to clear traffic jams more quickly and improve traffic flow on busy roads. In addition, lane filtering reduces the downtime of motorcycles in traffic jams, which is also beneficial from an environmental point of view as less fuel is consumed.
A look at international practice
France is not the first country to legalize lane filtering. In Spain, Italy and also in some US states such as California, this practice has been part of everyday life for years. Experience there has also shown that controlled lane filtering improves both the flow of traffic and the safety of road users.
Despite these advantages, the situation in Germany is different. Here, weaving through lanes remains illegal and is severely punished. Since the introduction of the new catalog of fines in November 2021, unauthorized use of the emergency lane is punishable by a fine of at least € 240, two points and a one-month driving ban.
In addition, legalization in Germany could lead to considerable problems due to a lack of acceptance by other road users. Although motorcyclists in traffic jams often endure particular stress due to heat and heavy protective clothing.
Conclusion
With the nationwide legalization of lane filtering, France is taking an important step towards a more modern and efficient traffic organization. As long as drivers adhere to the clearly defined rules, this measure should bring benefits for both motorcyclists and motorists.
