this striking curve which shows the reduction in the speed of the ring road over the years

While the Paris ring road is now limited to 50 km/h, since the decision of PS mayor Anne Hidalgo last October, here are the different speeds applied over time.

A striking observation. Commissioned in 1973, after 17 years of work, the ring road has seen its speed lowered over time.

If very recently, on October 1, the mayor of Paris Anne Hidalgo had enforced the change from 70 km/h to 50 km/h on this road, the first limitation was set at 90 km/h.

It was then reduced by 10 km/h, twenty years later, which made this road axis the first to be limited to 80 km/h in France.

In 2014, Prime Minister Jean-Marc Ayrault, via a decree, reduced the speed to reach 70 km/h. This reduction notably led to a 19% drop in accidents on the ring road, and specifically 25% among motorcyclists, according to figures from the City of Paris.

Today, the main reasons put forward by the Parisian town hall to justify the latest speed adjustment on the 35 kilometer long axis are noise pollution and also pollution.

According to BruitParif, 30,000 local residents would potentially be exposed to noise levels generated by the ring road which exceed the regulatory limit value of 68 dB(A) during the day, and 25,000 at night, a consequence of traffic which represents more than 1 daily. .2 million vehicles.