Bicycle accidents among teenagers

Bjomskau, T. · 2001 · ROSA P / Norway. Transportøkonomisk institutt (Institute of Transport Economics)

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Summary

This paper, authored by Harald Aas of the Institute of Transport Economics (TØI) in Norway, addresses the safety risks associated with teenage cyclists, specifically investigating whether knowledge of traffic regulations reduces accident and injury rates. The research was motivated by the introduction of new traffic regulations in Norway on May 1, 1998, which primarily required cyclists to yield to others when leaving sidewalks. To evaluate the impact of these rules and the accompanying public information campaign, the study examined the relationship between rule knowledge, behavioral factors, and accident outcomes among young cyclists. The methodology involved distributing a questionnaire to junior and senior high school students across 16 of Norway’s 19 counties. A total of 5,619 pupils responded. The survey collected data on participants’ knowledge of traffic rules and the awareness campaign, as well as their cycling habits, accident history, lifestyle factors (such as smoking and curfew restrictions), and sensation-seeking tendencies, measured by questions regarding activities like bungee jumping. Statistical analysis was used to identify correlations between these variables and the risk of accidents and injuries. The findings indicate that knowledge of traffic rules does not contribute to reducing accident or injury risk among young cyclists. Instead, specific road user behaviors were significant predictors of risk. Running red lights and cycling in the wrong direction in one-way traffic increased the likelihood of accidents and injuries, while adhering to cycle paths and using reflective materials in the dark reduced risk. Counterintuitively, teenagers who always dismounted their bicycles at pedestrian crossings appeared significantly more at risk than those who did so less frequently; the authors attribute this to a selection bias where cyclists with prior accident histories became more cautious. Additionally, lifestyle factors such as smoking, staying out late, and sensation-seeking increased risk, while sports participation was associated with higher risk, contrary to expectations. The study concludes that traffic rules generally have little importance for accident risk among young cyclists. It suggests a negative side-effect of the regulatory change: increased awareness among car drivers of their right of way may have led to more collisions when cyclists left pavements. Census data from Statistics Norway supported this, showing a significant increase in injuries in these specific situations after the rule change. The report implies that focusing on rule compliance is ineffective for this demographic, and that behavioral and lifestyle factors are more critical determinants of safety.

Key finding

Knowledge of traffic rules does not contribute to reducing the accident risk or injury risk among young cyclists, whereas specific road user behaviors and lifestyle factors significantly increase these risks.

Methodology

survey

Sample size: 5619

Provenance

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Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

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• regulatory evaluation

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).

• Applied Guidance: countermeasure evaluation
• Empirical Findings: crash risk outcomes