New Model to Estimate Speed Differential in Tangent-Curve Transition

In order to define a new model for tangent and curve speed differential value estimation, based on each driver's speed profile along tangent-curve transitions, an experimental study was conducted. An interactive fixed-based driving simulator developed by CRISS (Inter-University Research Center for Road Safety) was used. Data recorded in 16 tangent-curve configurations underwent regression analysis to develop a speed differential predicting model. It showed speed differential value to be dependent on curve radius, approach tangents, and operating speeds. There was subsequent model verification with five configurations of a real two lane rural road recorded data reconstructed in a driving simulator. Available literature on the proposed model and predictive models' comparative analysis show that some previous model criticalities are avoided in the new model, which is fully consistent with expected driver tangent-curve transition behavior.

Language

  • English

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Filing Info

  • Accession Number: 01111044
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Sep 24 2008 10:38AM