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Traffic Count

Traffic Count

This chapter uses Transport Infrastructure Ireland (TII) traffic count data to produce statistics of nationwide traffic activity. The TII employs Traffic Monitoring Units (TMU’s) across motorways, and national and regional roads to monitor traffic patterns in Ireland. The TMUs are equipped with technology which can accurately detect vehicle-type based on a combination of weight, distance between and number of vehicle axles.

Average daily traffic volume per week for cars

‘Traffic Volume’ represents the sum of traffic volumes, from all counters, divided by the number of traffic counting sites.

Average daily traffic volume per week for all traffic