Abstract
Relations between the occurrence of road accidents, traffic and rainfall conditions are valuable in setting safety objectives for traffic management, and in assessing the safety impacts of new traffic management systems, prior to their implementation. Based on traffic, road accidents and rain data collected over one year, on a French urban motorway network, a set of safety performance functions were estimated; each of them provides the accident risk per vehicle-kilometer for a certain type of accident, according to the occurrence of rain, and to the level of a traffic variable (average speed, occupancy, percentage of tailgating…). Analyses were carried out separately by lane and for two types of accidents: single-vehicle accidents and multiple-vehicle accidents. The relationships, although statistically significant, have yet to be validated by the treatment of another set of accidents.
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Notes
- 1.
However, a number of drivers involved in a single-vehicle accident claim that the accident is due to a runaway vehicle.
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Acknowledgements
We are very grateful to the “COMET” project (https://sites.google.com/site/orsicomet/home), launched by IFSTTAR, which brings together different participants in order to share knowledge and to develop tools for traffic management during adverse meteorological conditions. We also thank the reviewers for their relevant and fruitful remarks.
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Appendix: Significant Relationships
Appendix: Significant Relationships
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Aron, M., Billot, R., Bhouri, N., El Faouzi, NE., Seidowsky, R. (2018). Power and Exponential Functions Relating Accidents to Traffic and Rain. Calibration on a French Network. In: Żak, J., Hadas, Y., Rossi, R. (eds) Advanced Concepts, Methodologies and Technologies for Transportation and Logistics. EURO EWGT 2016 2016. Advances in Intelligent Systems and Computing, vol 572. Springer, Cham. https://doi.org/10.1007/978-3-319-57105-8_15
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