Road user's speed in traffic environment is a very informative and widely used parameter in behavioural studies. Automated video analysis system is a relatively new tool, which provides a researcher with continuous data on position and speed of the road users, passing the video-observed area. The additional information contained by continuous speed data (speed profiles) allows for more sophisticated analysis, which can affect the way the research work is planned and performed. An overview of some research studies shows that quite a wide range of speed-based indicators is currently used, while there is lack of proper discussion on their validity. A short test study illustrates the practical applicability of the speed profiles data from video analysis system. For the covering abstract see ITRD E137489.
Samenvatting