Skip to main content

Positive report on reduced speed limit on Paris ring road

Just one year after the introduction of the reduction of the speed limit from 80 km/h to 70 km/h on the Paris ring road, reports from the City Hall paint a positive picture of the results of this controversial measure. Accidents on the ring road are said to have reduced by 15.5 per cent, from 742 in 2013 to 627 in 2014, while the number of injuries has reduced from 908 in 2013 to 776 in 2014. Ironically, the reduced speed limit has resulted in an increase in the morning average speed from 32.6 km/h in
January 19, 2015 Read time: 2 mins
Just one year after the introduction of the reduction of the speed limit from 80 km/h to 70 km/h on the Paris ring road, reports from the City Hall paint a positive picture of the results of this controversial measure.

Accidents on the ring road are said to have reduced by 15.5 per cent, from 742 in 2013 to 627 in 2014, while the number of injuries has reduced from 908 in 2013 to 776 in 2014.

Ironically, the reduced speed limit has resulted in an increase in the morning average speed from 32.6 km/h in 2013 to 38.4 km/h in 2014, while the average speed in the evening has increased from 30.3 km/h in 2013 to 33.9 km/h in 2014. These results are explained by ‘reducing the accordion effect’ and have increased journey time savings by 15 per cent in the morning and five per cent in the evening.

The decrease in the speed limit also reduced noise by 1.2 dBA at night and by 0.5 dBA during the day, which corresponds to decreases in traffic of 25 per cent and 10 per cent.

According to Christophe Najdovski of Europe Ecologie Les Vert, the results should open the debate on testing a speed limit of 50km/h on the ring road.

Related Content

  • January 20, 2012
    Impact of speed limits in Barcelona
    When Barcelona imposed an 80km/h (50mph), the result was significant in environmental, accident, fatality and injury terms. The 80km/h speed limit had the same positive environmental effect as if 22,100 cars were eliminated from the roads in the metropolitan area. Moreover, a reduction in the consumption of fuel by more than 24,000 tonnes per year was also achieved, while accidents, fatalities and injuries also showed substantial improvement.
  • June 16, 2020
    Speed limits: is 20 really plenty?
    Speed kills – which means cutting speed should cut collisions. But is it that simple?
  • July 28, 2015
    Latest A9 speed camera report ‘shows improvement in driver behaviour’
    The latest performance data for A9 speed camera system has been published by Transport Scotland on behalf of the A9 Safety Group, covering the period May 2015 to July 2015 (incidents are quarter two April to June) as an overall assessment of the performance of the route. The report incorporates the first information in relation to collision and casualty figures covering the period from October 2014 to March 2015, which are reported against the average of the equivalent months in the preceding three year
  • October 31, 2016
    Average speed cameras reduce injury collisions, says report
    Research carried out into average speed camera (ASC) effectiveness by the UK’s RAC Foundation concludes that the implementation of ASCs in the locations that have been assessed in its report has had the effect of reducing injury collisions, and especially those of a higher severity. Even taking into account other influencing factors, the report says the reductions are large and statistically significant. Researchers analysed detailed accident data taken from 25 sites where average speed cameras were inst