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Title: AUTOMOBILES ON HORIZONTAL CURVES: EXPERIMENTS AND OBSERVATIONS
Accession Number: 00755020
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Statistical information on the basic variables involved in driving through a horizontal curve was obtained using a 4x4 Latin square design experiment to measure the action of automobile drivers in test track horizontal curves. The independent variables used in the test curves were speed (comfortable, fast); pavement surface (dry, wet); driver (male, female); and curve radius (16 m, 26 m, 60 m, 100 m). The measured output was the driver's selected speed and corresponding lateral acceleration. In addition, the passengers indicated their comfort level on a four-point semantic scale. Expert drivers also drove the test curves to establish the upper limits of the driver-vehicle-tire system. Field observations of four curves along a two-lane rural mountain highway measured driver vehicle speed, lateral acceleration, and lateral position. The results indicate that, for a comfortable ride, drivers are limited by their comfortable lateral acceleration on small radius curves and seek the "environmental speed" on large radius curves.
Supplemental Notes: This paper appears in Transportation Research Record No. 1628, Human Performance, User Information, and Highway Design.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: FELIPE, ENavin, FPagination: p. 50-56
Publication Date: 1998
Serial: ISBN: 0309064732
Features: Figures
(8)
; References
(19)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Safety and Human Factors; I20: Design and Planning of Transport Infrastructure; I83: Accidents and the Human Factor
Files: TRIS, TRB, ATRI
Created Date: Oct 9 1998 12:00AM
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