Conference Proceeding

A Simulation Study of Path and Speed Through Double-Lane Roundabouts

Authors
  • Gregory W Davis (FHWA Office of Safety RD&T, McLean, VA)
  • R Wade Inman (SAIC Transportation Research Division, McLean, VA)
  • Ted Shafer (SAIC Transportation Research Division, McLean, VA)
  • Bryan J Katz (SAIC Transportation Research Division, McLean, VA)

Abstract

This study assessed the effects of geometric curvature and lane demarcation on drivers’ selection of path and speed in double-lane roundabouts. By means of a PC-based simulator, path and speed data were collected as subjects drove twice through six roundabouts. The six roundabouts varied in terms of pavement markings and geometric curvature on the entry and exit. Seventy-five participants were tested using a fixed-base driving simulator. The results showed that drivers maintained lane position better when the roundabouts had lane demarcation than when the roundabouts had no lane demarcation. Furthermore, lane-tracking behavior for participants exposed to roundabouts with pavement markings was similar to lane-tracking behavior observed in a recent field study. Observations of speed indicated that drivers drove faster though roundabouts with a large central island radius as opposed to a roundabout with a smaller central island radius

How to Cite:

Davis, G. & Inman, R. & Shafer, T. & Katz, B., (2003) “A Simulation Study of Path and Speed Through Double-Lane Roundabouts”, Driving Assessment Conference 2(2003), 259-264. doi: https://doi.org/10.17077/drivingassessment.1134

Rights: Copyright © 2003 the authors

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Published on
24 Jul 2003
Peer Reviewed