Information on volume of traffic by type of vehicle and class of road for 2017.
- In 2017, the total volume of motorised traffic in Wales was 29.1 billion vehicle kilometres (bvk), which is equivalent to 9,306 vehicles kilometres (5,782 miles) per head of the population over the year.
- In 2017, total volume of traffic in Wales was 0.3% lower than the record high in 2016 and 3.9% higher than the previous peak in 2007.
- Within this total volume of traffic, cars accounted for 78% of the total.
- Vehicles travelled mostly on the major roads, with 65.7% of motor traffic in Wales either on motorways or A roads.
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