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Road traffic

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  • Release date: 30 November 2016
  • Period covered: 2015
  • Next update: 8 November 2017
An annual report presenting information on volume of traffic by type of vehicle and class of road.

79% cars/taxis; 15% light vans; 4% goods vehicles; 1% buses/coaches; 1% motorbikes. Source: Welsh Government

Key points

  • In 2015, the total volume of motorised traffic in Wales was 28.4 billion vehicle kilometres (VKM), which is equivalent to 9,184 vehicles kilometres (5,740 miles) per head of the population over the year. 
  • Within this total volume of traffic, cars accounted for 79 per cent of the total.
  • Vehicles travelled mostly on the major roads, with 65 per cent of motor traffic in Wales either on motorways or A roads.
  • Motor traffic in Wales peaked in 2015 at 28.4 billion vehicle kilometres, which is 1.5 per cent higher than the previous peak in 2007 and represents a 1.8 per cent increase on 2014.


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