Risk factors in urban road traffic accidents

Vorko-Jović, Ariana; Kern, Josipa; Biloglav, Zrinka · 2006 · OpenAlex-citations

DOI: 10.1016/j.jsr.2005.08.009

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Summary

This study investigates the human and environmental risk factors contributing to the severity of urban road traffic accidents (RTAs) in Zagreb, Croatia. Motivated by rising injury incidence rates despite decreasing mortality, the research aims to identify specific circumstances and variables that influence fatal, severe, and mild injury outcomes. The authors argue that linking police reports with hospital records provides a more complete and less biased understanding of RTA causality than police data alone. The methodology involved analyzing linked data from traffic police reports and hospital admission records for RTA victims treated in three major Zagreb hospitals between January 1999 and December 2000. From an initial sample of 1,882 injured or killed persons, 528 cases with complete linked data were selected for analysis. Victims were categorized into three outcome groups: those who died at the scene or during transport (55 individuals), those severely injured (260 individuals), and those mildly injured (213 individuals). Injury severity was validated through correlations with hospital length of stay and costs. The study examined 16 variables, including age, gender, road user type, time of day, visibility, road type, speed, seat belt usage, and alcohol concentration, using chi-square tests and odds ratios (OR) to determine statistical significance. The results identified several significant risk factors. Fatal outcomes were significantly associated with male gender (OR=2.69), accidents occurring between 0:00–6:00 hours (OR=3.78), weekend occurrences (OR=1.89), and poor visibility conditions (OR=2.29). Location played a critical role: fatal accidents were more frequent on urban road links (OR=2.33), whereas junctions were associated with a higher frequency of non-fatal injuries (OR=5.27 for injured vs. fatal). Behavioral factors such as exceeding speed limits (OR=2.56) and not using seat belts (OR=2.33) significantly increased the risk of death. When comparing fatal/severe injuries against mild injuries, elderly individuals (≥65 years) and pedestrians faced significantly higher risks of severe outcomes (OR=2.49 and OR=2.00, respectively), while drivers and younger individuals (<30 years) were more likely to sustain mild injuries. The highest combined risk for death or severe injury was observed in male drivers traveling at excessive speeds on urban links during poor visibility conditions (OR=16.15). The study concludes that specific demographic and behavioral profiles, particularly male drivers engaging in risky behaviors like speeding and not wearing seat belts during night hours, are primary drivers of fatal and severe urban RTAs. The authors note that police data alone underreport incidents, particularly involving mild injuries or intoxicated drivers. These findings support the implementation of stricter traffic safety laws and enforcement in Croatia, specifically targeting male driver behavior and protecting vulnerable groups like the elderly and pedestrians to reduce overall injury incidence.

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Topics

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• demographic disparities
• fatality injury trends
• incidence prevalence
• sex gender
• comparative international
• urban rural setting

Information type

What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).

• Empirical Findings: crash risk outcomes, observational prevalence