Speed Surveys

Managing travel speeds is a core part of an efficient and safe road transport system. Speed management involves consideration of travel times, safety, fuel use and other environmental issues.

Monitoring speeds of vehicles that are unimpeded by other traffic provides a measure of drivers' choice of travel speed. This report (PDF v7.0, 286kb) presents the results of the latest annual nationwide survey of unimpeded vehicle speeds. These surveys are designed to monitor changes in vehicle speeds in both 100km/h speed limit areas and main urban 50km/h areas. There are about 65 open road and 65 urban sites surveyed each year.  The current sites have been surveyed since 1995.This measure provides us with information on the effectiveness of speed management measures and provides valuable information for developing safety policies