National Statistics

Road traffic: 2015

An annual report presenting information on volume of traffic by type of vehicle and class of road.


Road traffic: 2015


Traffic volume is measured using vehicle kilometres, which are calculated by multiplying the annual average daily flow of traffic by the corresponding length of road. For example, 1 vehicle travelling 1 kilometre a day for a year would be 365 vehicle kilometres over a year.

Published 30 November 2016