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

Rosa Marina González, Concepción Román, Francisco Javier Amador, Luis Ignacio Rizzi, Juan de Dios Ortúzar, Raquel Espino, Juan Carlos Martín, Elisabetta Cherchi

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)499-521
Number of pages23
Issue number2
StatePublished - Mar 1 2018


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

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Development
  • Transportation


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