01658086

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Interactions between bicycles and motor vehicles are most commonly studied using a bicycle that is ridden in traffic and fitted with ultrasonic sensors that measure the lateral distance with which vehicles pass the bicycle. However, an alternative is to rely entirely on video cameras that record the view ahead, behind, and to the side of the bicycle as it interacts with motor vehicles. A bicycle equipped in this manner can record not just lateral passing distance, but also such information as the speed of an approaching vehicle, and the distance at which a motor vehicle turns in front of the bicycle. This paper proposes several variables that relate to bicycle safety during interactions with motor vehicles, and describes how they can be measured using a system that is entirely video based. Technological solutions are also described for several challenges that arise when processing and scoring the videos.

This paper was sponsored by TRB committee ANB20 Standing Committee on Safety Data, Analysis and Evaluation.

18-05774

English

14p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

Figures; Photos; References

Automatic data collection systems; Bicycles; Instrumented vehicles; Metrics (Quantitative assessment); Motor vehicles; Passing; Safety; Traffic conflicts; Vehicle mix

Vehicle interactions

Highways; Pedestrians and Bicyclists; Planning and Forecasting; Safety and Human Factors; Vehicles and Equipment

Transportation Research Board Annual Meeting 2018 Paper #18-05774

TRIS, TRB, ATRI

Jan 8 2018 11:29AM