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(Automatic translation)

Design of a model for the identification and analysis of road sections without accidents (White Road Sections)

Elena GONZÁLEZ DE LA PEÑA
Doctora Ingeniera de Caminos, Canales y Puertos
Subdirectora General Técnica de la Asociación Española de la Carretera (AEC)

ABSTRACT

The article aims to demonstrate that there are certain parameters of the design of roads and traffic that, under similar general characteristics of the roads, have an influence on the fact that accidents occur or not, in addition to exposure to risk, as a main factor, and other factors. The investigation focused on the toll highways and conventional roads of the State Highway Network, with accident data for the 2006-2010 period. 

The most significant result was the consequence of the calibration of logistic regression models for toll motorways; it was shown that, for average daily traffic lower than 10.000 vehicles, White Road Sections (sections without serious accidents) usually happen under average speed lower than 110 km/h, width of lane below 3,5 meters, left shoulder width above 1 meter and less than 5% of heavy vehicles. For average daily traffic between 10.000 and 15.000 vehicles, White Road Sections happen with average speed lower than 110 km/h, road section width bigger higher than 11 meters and less than 6 % of heavy vehicles.

KEYWORDS

Accident, Road Safety, Model, Highway, White Section, Traffic, Accident, RCE State Highway Network, Conventional Highway.

Asociación Española de la Carretera
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28001 - MADRID (Spain)
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