Study on the causes of accidents involving bicycles and two-wheelers

Location: France, Greece, Italy, Netherlands, Poland, United Kingdom

Year of completion: 2017

Areas: ,

The problem

The SaferWheels study was carried out with in-depth investigation techniques to explore the causes of road accidents involving two-wheelers and bicycles in the European Union.

One of the strategic goals identified by the European Commission is to improve the safety of vulnerable road users. In particular, cyclists and motorcyclists require specific attention, given the growing number of accidents involving them and the considerable proportion of fatalities and serious injuries.

Our approach

The approach of the study was to:

  • collect the data on accidents with two-wheelers and bicycles from in-depth accident surveys;
  • investigate the causes of the accident and medical data;
  • store the information according to an appropriate and efficient protocol allowing a causality oriented analysis.

About 500 accidents were reported in six countries: France, Greece, Italy, Netherlands, Poland, and the United Kingdom.

On the basis of the analysis of the main types of accident and the causal factors, the most efficient measures were proposed in terms of costs to prevent such accidents.


CEESAR, CERTH-HIT, Motor Transport Institute, Poland (ITS), Loughborough University, NTUA, SWOV

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