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Determination of the Friction Coefficients of Icy Pavements Under Different Amounts of Snowfall

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Explaining the road accident risk: weather effects.

Ruth Bergel-Hayat¹, Mohammed Debbarh, Constantinos Antoniou

¹UPE IFSTTAR GRETTIA, French Institute of Science and Technology for Transport, Development and Networks, France.

Accident; Analysis and Prevention

|August 10, 2013

Summary

This summary is machine-generated.

Weather significantly impacts road accident risk, with correlations varying by road type and location. Analyzing weather data helps improve national road safety monitoring and understand accident patterns.

Keywords:

Aggregate risk Athens region France Frost Injury accidents Precipitation Rainfall Road safety Temperature The Netherlands Weather effects

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Area of Science:

Road Safety
Environmental Science
Transportation Engineering

Background:

Road safety monitoring is crucial for national planning.
Previous research has explored factors influencing road accidents.
The SafetyNet project aimed to build a European Road Safety Observatory.

Purpose of the Study:

To establish the relationship between weather conditions and road accident risk.
To enhance national-level road safety monitoring.
To analyze accident data using weather variables.

Main Methods:

Time series analysis models were employed.
Quantitative weather variables were used as explanatory factors.
Aggregate datasets of injury accidents from France, the Netherlands, and Athens (over 20 years) were analyzed.

Main Results:

Significant monthly correlations were found between weather variables and injury accidents.
The strength and direction of correlations varied across motorways, rural, and urban roads.
Extreme weather effects were highlighted by analyzing daily weather variability within monthly models.

Conclusions:

Weather conditions are demonstrably linked to road accident frequency.
Road type significantly influences the impact of weather on accident risk.
Incorporating detailed weather data can refine road safety assessments and interventions.