Memorias de investigación
Communications at congresses:
Calibration of a Roadside Risk Index for two-lane rural roads
Year:2010

Research Areas
  • Civil engineering

Information
Abstract
Run-off-road (ROR) crash records from a sample of 1946 km of Spanish two-lane rural roads were analyzed to study the effect of roadside conditions on safety. Four categorical indicators were used to characterize the main roadside features that have an influence on safety: alignment, roadside slope, obstacles offset and safety barrier disposition. Cluster analysis was used to group the 150 possible combinations of the four indicators in categories with homogeneous effects on ROR crash frequency and severity. As a result a five level Roadside Risk Index (RRI) was defined. The RRI facilitates the task of gathering homogeneous roadside safety related information and will be used in Spain as a variable in crash prediction modelling and as a reference for roadside improvement planning.
International
Si
Congress
Transportation Research Board 89th Annual Meeting
960
Place
Washington DC
Reviewers
Si
ISBN/ISSN
Start Date
10/01/2010
End Date
14/01/2010
From page
0
To page
0
Transportation Research Board 89th Annual Meeting Compendium of Papers
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería de Carreteras I+D (ICID)
  • Departamento: Ingeniería Civil: Transportes