The Analysis of the Factors Influencing the Severity of Bicyclist Injury in Bicyclist-Vehicle Crashes

Macioszek, Elżbieta; Granà, Anna · 2021 · Crossref

DOI: 10.3390/su14010215

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Summary

This study investigates the factors influencing the severity of bicyclist injuries in crashes involving motor vehicles, motivated by the high risk bicyclists face in Poland, which ranks among the most dangerous EU countries for this user group. Despite cycling’s promotion for sustainable transport, bicyclists account for nearly 10% of road fatalities despite comprising only 1–2% of total travel. The research aims to identify predictors of severe and fatal injuries to inform safety improvements, addressing the gap in understanding specific crash dynamics beyond general accident counts. The authors utilized data from Poland’s System of Records of Accidents and Collisions (SRAC) to analyze road incidents involving bicyclists and motor vehicles. The methodology involved statistical analysis of various incident characteristics, including time of occurrence, location, incident type, vehicle types involved, and participant demographics. To model injury severity, the study employed a binomial logit model, defining dependent and explanatory variables to determine the likelihood of a bicyclist suffering severe or fatal injuries compared to less severe outcomes. This approach allowed for the identification of specific predictors affecting injury probability. The analysis revealed several key factors increasing the risk of serious injuries and fatalities. Driver-related factors included gender, age, driving under the influence of alcohol, and exceeding speed limits. Bicyclist characteristics such as age, cycling under the influence of alcohol, and pre-incident speed also significantly influenced injury severity. Additionally, the type of vehicle involved, particularly trucks, the location of the incident (specifically on roads rather than other areas), the time of day, and the specific type of incident were identified as critical determinants. The study highlighted that bicyclists are 9.4 times more likely than car drivers to be injured in a road incident, underscoring their vulnerability due to lack of protective vehicle structures. The findings provide actionable insights for enhancing bicyclist safety in road traffic. By identifying specific risk factors, the results can guide targeted interventions, such as stricter enforcement against drunk driving and speeding, infrastructure improvements for road segments with high incident rates, and educational campaigns addressing bicyclist behavior. The study emphasizes the need for precise safety indicators, such as injuries per million bicycle trips, to accurately assess risk and formulate effective road safety programs. These conclusions contribute to the broader field of sustainable transport development by offering evidence-based strategies to mitigate the severe consequences of bicyclist-vehicle crashes.

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Topics

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• cyclist safety
• vru crash typology
• sex gender
• demographic disparities

Information type

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• Empirical Findings: crash risk outcomes