Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Impact Analysis of Road Infrastructure and Traffic Control on Injury Severity of Single- and Multi-vehicle Crashes

Version 1 : Received: 27 June 2023 / Approved: 27 June 2023 / Online: 27 June 2023 (05:46:27 CEST)

How to cite: Tanishita, M.; Sekiguchi, Y. Impact Analysis of Road Infrastructure and Traffic Control on Injury Severity of Single- and Multi-vehicle Crashes. Preprints 2023, 2023061852. https://doi.org/10.20944/preprints202306.1852.v1 Tanishita, M.; Sekiguchi, Y. Impact Analysis of Road Infrastructure and Traffic Control on Injury Severity of Single- and Multi-vehicle Crashes. Preprints 2023, 2023061852. https://doi.org/10.20944/preprints202306.1852.v1

Abstract

Single and multi-vehicle crashes are a significant issue that causes economic and social costs and has therefore gained attention. This study explored the factors associated with injury severity for both single- and multi-vehicle crashes using over 550,000 crash data points in Japan between 2019 and 2021. We identified the determinants of road infrastructure and traffic control while controlling for driver, vehicle, environmental, and accident characteristics by applying ordered logit and bias-reduced binomial regression models. Our findings are as follows. 1) Traffic control variables did not affect single-vehicle crashes. 2) Guardrails had a higher severity in both single-vehicle crashes and multi-vehicle crashes at intersections. 3) The impact of the centerline differed between intersections and non-intersections for multi-vehicle crashes.  These results of this study provide transportation agencies with important guidance as to the road infrastructure and transport control.

Keywords

injury severit; road infrastructure; traffic control; singe- and multi-vehicle crash; population density

Subject

Engineering, Safety, Risk, Reliability and Quality

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