The perception of risk, as the expectation of being involved in a traffic accident, is evaluated mainly in a subjective manner being perceptions as highly individual, and depending on experiences with accidents. However, both individual driver characteristics and driving behaviour entail certain perception errors in the risk level evaluation; as a consequence, drivers are very often not aware of the actual risk they are taking. For this aim, the paper presents a methodology for measuring the driver's perception error in the traffic accidents risk level evaluation based on the comparison between a measure of the risk perception subjectively obtained, and an objective measure obtained from kinematic parameters defining the driving style. Starting from a procedure that describes the relationship between lateral and longitudinal accelerations and speeds, we classified car drivers’ behaviour as safe or unsafe. Then, we defined three levels of risk of being involved in a road accident (low, medium, and high risk). The subjective measure of the risk perception is obtained by the judgements of drivers regarding their driving behaviour.
Measuring the driver's perception error in the traffic accident risk evaluation
IET Intelligent Transport Systems ; 11 , 10 ; 659-666
2017-12-01
8 pages
Article (Journal)
Electronic Resource
English
risk perception , intuitive graph , reliability , driver characteristics , road traffic , behavioural sciences , kinematic parameters , driver perception error measurement , road accidents , driving behaviour , traffic accidents risk level evaluation , road accident , Southern Italy , intelligent transport systems , ITS , rural two‐lane roads , intelligent transportation systems
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