Safety Effects of Horizontal Curve Design and Lane and Shoulder Width on Single Motorcycle Accidents in Norway

نویسندگان

چکیده

Factors related to the road infrastructure contribute occurrence of motorcycle accidents. This study investigates how design parameters existing rural two-lane network in Norway influence single The elements considered this are horizontal curvature (curve type, degree curvature, and adjacent curve requirements) lane shoulder widths. A matched case-control was applied investigate safety effects these elements. Cases were defined as segments experiencing at least one accident during period from 2013 2017, while controls not an same period. In order identify segments, a GIS analysis performed on data collected National Road Database (NVDB). studies, matching allows us control for confounding variables. AADT speed limit used variables study. ratio 4 : 1 (i.e., four per case) used, resulting 752 being 188 cases. results indicate alignment have more significant effect accidents compared Segments with several reverse curves, high (R < 200 m), odds accident. Further, if requirements curves fulfilled considerable variation radii), increase even more. While statistically significant, trends seen that wider lanes associated increased accident, shoulders decreased odds. comparison similar considering passenger vehicles, also has greater than vehicle

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ژورنال

عنوان ژورنال: Journal of Advanced Transportation

سال: 2021

ISSN: ['0197-6729', '2042-3195']

DOI: https://doi.org/10.1155/2021/6684334