Estimating the value of risk reductions for car drivers when pedestrians are involved: a case study in Spain (2016)

Title

Estimating the value of risk reductions for car drivers when pedestrians are involved: a case study in Spain 

Publication Type

Journal Article

Year of Publication

2016

Authors

González, R.M., Román, C., Amador, F.J., Rizzi, L.I., Ortúzar, J. de D., Espino, R., Martin, J.C. y Cherchi, E

Journal Title

Transportation

Keywords

Value of risk reduction, Stated choice experiment, Efficient design, Willingness to pay, Road accidents, Pedestrian victims

Abstract

We estimated the benefits associated with reducing fatal and severe injuries from traffic accidents using a stated choice experiment where choice situations were generated through a statistically efficient design. Specifically, the risk variables were defined as the expected annual number of vehicle car-users that suffered their death or were severely injured in a traffic accident. In addition, and differing from previous research, the number of pedestrians that died or were severely injured in traffic accidents per year was also included as a risk attribute in the choice experiment, to attempt at measuring drivers’ willingness to pay to reduce the risk of hitting pedestrians in a crash. The empirical setting was a choice of route for a particular trip that a sample of car drivers periodically undertakes in Tenerife, Spain. Models were estimated accounting for random taste heterogeneity and pseudo-panel data correlation. The median of the distribution of simulated parameters was used to obtain a representative measure for the monetary valuation of risk reductions. We found that the ratio between the values of reducing the risk of suffering a serious injury and that of reducing a fatality was approximately 18 %. Further, and quite novel, we also found that the value of reducing a pedestrian fatality was 39 % of the value of reducing a car occupant fatality.

DOI

https://doi.org/10.1007/s11116-016-9736-0

Corresponding Author

Rosa Marina González, rmglzmar@ull.es

Line (s) of Research

Access and mobility