The interurban DRAG-Spain model: The main factors of influence on road accidents in Spain

Francisco Aparicio Izquierdo, Blanca Arenas Ramírez and Eva Bernardos Rodríguez

Research in Transportation Economics, 2013, vol. 37, issue 1, 57-65

Abstract: This paper presents the results of applying DRAG methodology to the identification of the main factors of influence on the number of injury and fatal accidents occurring on Spain’s interurban network. Nineteen independent variables have been included in the model grouped together under ten categories: exposure, infrastructure, weather, drivers, economic variables, vehicle stock, surveillance, speed and legislative measures. Highly interesting conclusions can be reached from the results on the basis of the different effects of a single variable on each of the accident types according to severity. The greatest influence revealed by the results is exposure, which together with inexperienced drivers, speed and an ageing vehicle stock, have a negative effect, while the increased surveillance on roads, the improvement in the technological features of vehicles and the proportion of high capacity networks have a positive effect, since the results obtained show a significant drop in accidents.

Keywords: Traffic accidents; Time series analysis; Mobility; Infrastructure; Surveillance; Traffic speed; Safety laws; Vehicle stock characteristics; Spanish intercity road network (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1016/j.retrec.2011.08.011

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