The Highway Code clearly states: it is strictly forbidden to cross the white line on the roads. However, there are a few very specific situations where crossing is authorized.
On the road, solid lines – commonly known as “white lines” – are important signs that should not be ignored. These ground markings which separate the traffic lanes are in principle impassable, for obvious safety reasons. But, as with any rule, there are some well-defined exceptions which allow crossing without penalty.
First of all, it is important to differentiate between crossing and overlapping. We speak of crossing if the vehicle moves entirely onto the lane which is to the left of the one in which it is traveling, passing completely to the other side of the line. And overlap when only part of the vehicle passes on the other side of the line.
In both cases, article R414-4 of the highway code is very clear: crossing or straddling a continuous line is strictly prohibited and can result in severe penalties. The offense is thus punishable by a fine of 135 euros and a deduction of points on the driving license: one point for overlapping and three for crossing. And a three-year license suspension can also be imposed in the most serious cases.
However, there are specific situations where crossing a solid line is permitted, provided certain strict rules are respected.
One of the most notable exceptions concerns cyclists. Since 2015, it has been authorized to cross a solid line to overtake a cyclist, but only under very specific conditions: on two-way roads where the speed is limited to 50 km/h. Of course, it is necessary to ensure that visibility is sufficient and that this overtaking can be done in complete safety, without danger for the cyclist or other road users.
It is also possible to cross a continuous line in the case of fixed obstacles: for example, if a rock has fallen on the mountain road, or if works block part of the route or in the presence of animals or riders on the road, where it is sometimes necessary to move aside to pass them safely.
It is important to note that these exceptions do not apply to slow moving or temporarily stopped vehicles. If a bus appears to be parked for no apparent reason, it is not permitted to overtake it by crossing the solid line, unless it is clearly broken down or stopped for a valid reason. And you are not allowed to cross a white line to overtake a tractor either. Be patient and understanding: everyone’s safety is at stake!