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

  • America explores road user charging options
    November 14, 2017
    Jack Opiola casts an eye over the numerous road user charging pilots underway in the US. In the USA, congestion mitigation and improving mobility have often focused on network improvements, increased road capacity, improved public transport, high-occupancy toll (HOT) lanes or ‘express lanes’ and ITS measures – all of which require political capital and major funding. Nowadays, political capital is as hard to obtain as funding because more political leaders are recognising the decline of fuel excise tax
  • America explores road user charging options
    November 27, 2017
    Jack Opiola casts an eye over the numerous road user charging pilots underway in the US. In the USA, congestion mitigation and improving mobility have often focused on network improvements, increased road capacity, improved public transport, high-occupancy toll (HOT) lanes or ‘express lanes’ and ITS measures – all of which require political capital and major funding. Nowadays, political capital is as hard to obtain as funding because more political leaders are recognising the decline of fuel excise tax in
  • Noise camera knowledge is far from sound, finds ITS UK
    January 27, 2025
    UK public doesn't like noisy vehicles - but also doesn't know about remedies
  • Reducing congestion essential to help buses meet EU NOX targets
    August 15, 2014
    Tailpipe data firm Emission Analytics has issued a warning to bus and vehicle fleet owners planning to retrofit their vehicles with nitrogen oxide (NOX) reducing equipment, as stringent real-world analysis is need to ensure they meet the EU emission targets. The firm says the Department for Transport (DfT) support for local authorities with up to £500,000 of funding from its £5 million Clean Vehicle Technology Fund is a positive step. However, the methods by which it monitors the NOX produced needs to be