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Road traffic

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

Increases: Light vans 5%; Pedal cycles 5%; Cars/taxis 2%; Decreases: Buses/coaches 9%; Goods vehicles 1%; No change: Motorbikes 0%. Source: Welsh Government

Key points

  • In 2016, the total volume of motorised traffic in Wales was 29.0 billion vehicle kilometres, which is equivalent to 9,322 vehicles kilometres (5,826 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 64.7 per cent of motor traffic in Wales either on motorways or A roads.
  • Motor traffic in Wales peaked in 2016 at 29.0 billion vehicle kilometres, which is 3.7 per cent higher than the previous peak in 2007 and represents a 2.2 per cent increase on 2015.


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