1. Empirical calibration of a roadside hazardousness index for Spanish two-lane rural roads.
- Author
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Pardillo-Mayora JM, Domínguez-Lira CA, and Jurado-Piña R
- Subjects
- Accidents, Traffic mortality, Cause of Death, Cross-Sectional Studies, Humans, Proportional Hazards Models, Spain, Wounds and Injuries mortality, Accidents, Traffic prevention & control, Accidents, Traffic statistics & numerical data, City Planning, Environment Design, Rural Population, Safety Management, Wounds and Injuries epidemiology, Wounds and Injuries prevention & control
- Abstract
Crash records and roadside data from Spanish two-lane rural roads were analyzed to study the effect of roadside configuration on safety. Four indicators were used to characterize the main roadside features that have an influence on the consequences of roadway departures: roadside slope, non-traversable obstacles distance from the roadway edge, safety barrier installation, and alignment. Based on the analysis of the effect of roadside configuration on the frequency and severity of run-off-road injury crashes, a categorical roadside hazardousness scale was defined. Cluster analysis was applied to group the combinations of the four indicators into categories with homogeneous effects on run-off-road injury crashes frequency and severity. As a result a 5-level Roadside Hazardousness Index (RHI) was defined. RHI can be used as reference to normalize the collection of roadside safety related information. The index can also be used as variable for inclusion of roadside condition information in multivariate crash prediction models., (2010 Elsevier Ltd. All rights reserved.)
- Published
- 2010
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