A simulation study of path and speed through double-lane roundabouts.

Author(s)
Davis, G.W. Inman, V.W. Shafer, T. & Katz, B.J.
Year
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 through roundabouts with a large central island radius as opposed to a roundabout with a smaller central island radius.

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Publication

Library number
C 33595 (In: C 33556 [electronic version only]) /83 /82 / ITRD E830497
Source

In: Driving Assessment 2003 : proceedings of the 2nd International Driving Symposium on Human Factors in Driver Assessment, Training and Vehicle Design, Park City, Utah, July 21-24, 2003, p. 259-264

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