A Flexible, Mobile Video Camera System and Open Source Video Analysis Software for Road Safety and Behavioural Analysis
نویسندگان
چکیده
This paper presents a scalable, discreet and mobile video-camera system that takes elevated video data of roadway locations for traffic safety analysis. The video is used to extract microscopic traffic parameters including road-user trajectories, lane changes and speeds. Collected video data is processed using an open-source automatic tracking tool. Trajectories can be then used to analyse road user behaviour for specific locations (intersections or highway sections) or to evaluate the safety effectiveness of a treatment. The different elements of the systems including data collection and processing are discussed. To illustrate its versatility, different applications (case studies) illustrate the use of the video-camera system and open-source video-tracking and analysis tool. This includes video-based conflict analysis at highway ramps and behavioural analysis of pedestrians and cyclists at signalized intersections, including red-light violations.
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