Title: Trends in driver speed behaviours on rural road network 2000 to 2013
Abstract: Ten annual speed surveys were conducted in the non-metropolitan areas during the period between 2000 and 2013 to measure driver speed compliance across the network of speed limit roads ranging from 60 km/h to 110 km/h. The 2000 survey was used as the baseline year for the comparisons with all subsequent surveys from which road safety and speed performance indicators were derived as measures of driver speed behaviours over the time. The principal objective of the surveys was to measure changes in driver speed behaviours at general locations of the road network over time and to relate those changes to the effectiveness of various speed related road safety programs implemented in the state. In each of the nine surveys conducted in the years 2003 to 2013 attempts were made to survey all of the sites chosen in the stratified random sample of 95 sites in the baseline 2000 survey. In all surveys, seven-day speed data was collected at each site in the sample of roads chosen across the rural network. Each of the surveys resulted in over 1 million vehicles travelling in traffic free-flowing environments. Effectiveness of speed road safety programmes is estimated in terms of changes in: speed compliance rates, proportion of drivers exceeding 10 or more km/h above the speed limit, 85th percentile and mean speeds. The study found that under free-flowing condition over the rural network of all speed limits (excluding 50 km/h roads) in 2000, 60.6% of all vehicles travelled at or below posted speed limits. The best compliance rate of 71.1% was achieved in 2009, 10.5% higher than in the 2000 baseline survey, followed by small annual reductions to 70.8% in 2013.
Publication Year: 2014
Publication Date: 2014-04-01
Language: en
Type: article
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Cited By Count: 1
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