What do the dashes close to each other near French freeway exits mean?
- By
- Aparna Patel
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- 25 Jul, 2023
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This is actually a way to tell that, if not driving on the rightmost lane already, it is too late to merge right to reach the exit ramp in safe conditions. Drivers should prepare soon enough to get in correct position to exit before it is reached as there are signs soon enough that mention the remaining distance.
Some reckless drivers still do it, which is a rather dangerous move.
Note: this is completely unrelated to the thick dashes that delimitate the beginning and end of exit and entry ramps. If those dashes are seen on the main roadway delimitating the rightmost lane, they mark a reserved lane for trucks & slow vehicles (60 km/h) during an uphill section. The blue disc sign maked with “VEHICULES LENTS” (slow vehicles) should be seen at the beginning.
They indicate that traffic will be slowing to leave the at the exit and extend to indicate that slower traffic will be entering.
In Europe, it is not legal to overtake on the nearside, so it is a reminder for polite drivers to move out (if possible) to allow slowing traffic to leave and join.
It is not illegal to cross them, but the gendarmes can always find something wrong if they stop you.
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It’s called a “ligne de dissuasion” (literally “deterrence line”). The idea is to indicate that it’s too late to switch from the leftmost lane to the exit. But it’s not strictly forbidden to cross the line, especially in the other direction (from the rightmost lane to the leftmost lane), e.g. to overtake or make some space for someone getting on the motorway.
According to the guidelines published by the ministry using a straight line for that purpose is deemed “too limiting” (“trop contraignant”) and reserved for special situations, when the exit is “particularly difficult”. German motorways have slightly different markings to convey the same idea.
In France, the same markings are also used on country roads, when overtaking is not strictly forbidden but should only be done for particularly slow vehicles. In both cases, it means more-or-less the same thing: Crossing the line is not forbidden but you are encouraged not to do it if you can avoid it.
According to the Vienna Convention on Road Signs and Signals (http://www.unece.org/fileadmin/DAM/trans/conventn/signalse.pdf), Chapter IV, Article 26, paragraph 2 (a), a broken line can be used (i) “to demarcate lanes” or (ii) “to give warning of the approach to a continuous line … or of the approach to another section of road presenting a particular danger.”
2 (b) goes on to say that “the ratio between the length of the gaps between the strokes and the length of the strokes shall be substantially smaller” when the meaning is that of (a)(ii).
This page calls such lines lignes de dissuasion, saying that while crossing is allowed, it is discouraged.
And for what I think is a more reliable site, here is a site that offers tests on the French auto code. It has a page on markings. It offers:
Les lignes de dissuasion
Souvent rencontrées sur les routes étroites et sinueuses. Elles
autorisent le dépassement des véhicules très lents. Elles sont
composées de traits de 3 m et d’intervalle de 1,33 m.
Which google translates as:
Deterrence lines
Often encountered on the narrow, winding roads. They allow the
overcoming of very slow vehicles. They are composed of lines of 3 m
and an interval of 1.33 m.
Credit:stackoverflow.com‘
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