Risk classification model in rural T-form intersections and time to evasion evaluation as surrogate safety measure

Authors

  • Alejandro Torres Flores Universidad de Santiago de Chile
  • Francisco Torres Avilés Universidad de Santiago de Chile
  • José Mª Pardillo Mayora Universidad Politécnica de Madrid, España

DOI:

https://doi.org/10.4067/S0718-50732010000300002

Keywords:

Principal component analysis, classification trees, time to collision, time to evasion, traffic conflicts

Abstract

In the intersections, the drivers confront many options related to the way, speed and trajectory, which ones in combination to many options of traffic movements, they make difficult the task of the conductor and considerably increase the potential occurrence of an accident. In this paper, data of traffic conflicts are used, taken in rural T-form intersections from Talagante district in the Metropolitana region, Chile. Using the principal component analysis, an index are proposed that represents the risk level of each traffic conflict in an intersection, determining that the highest values of the index are related to a greater risk of than a traffic conflict it finished in accident, whereas low values indicate a smaller risk. After that, a model of classification of the risk in intersections is developed, applying the theory of decision trees. Finally, Time to Evasion is validated like quantifying variable of the traffic conflicts, taking as it bases studied variables at world-wide level, like Time to Collision and Post – encroachment Time.

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Published

2010-12-31

How to Cite

Torres Flores, A., Torres Avilés, F., & Pardillo Mayora, J. M. (2010). Risk classification model in rural T-form intersections and time to evasion evaluation as surrogate safety measure. Revista Ingeniería De Construcción, 25(3), 353–370. https://doi.org/10.4067/S0718-50732010000300002

Issue

Section

Original Research

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