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Title: SPEEDS OF CARS ON HORIZONTAL CURVES
Accession Number: 00753987
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Revision of existing Yugoslav road-design standards, specifically in the area of road-design speed definition, required studying driver behavior in free-flow conditions in order to define drivers' responses to the radii of horizontal curves. A specific approach with variable design speed for horizontal curves is discussed and is supported by speed measurements on roads. The pilot research was undertaken on several test sites on Yugoslav two-lane rural roads to collect reliable speed data related to characteristics of horizontal curves. Characteristics of test sites, experimental procedures, data collected, and results of data analyses are described. It is concluded that speeds of free-flow passenger cars show good correlation with radii and that actual design policy with a constant design speed underestimates speeds in radii less than 250 m. Thus, the variable design speed concept is a more realistic approach. Further research on more test sites is recommended.
Supplemental Notes: This paper appears in Transportation Research Record No. 1612, Highway Geometric Design Issues.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Andjus, VMaletin, MPagination: p. 42-47
Publication Date: 1998
Serial: ISBN: 0309064570
Features: Figures
(7)
; References
(7)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Design; Highways; I20: Design and Planning of Transport Infrastructure
Files: TRIS, TRB, ATRI
Created Date: Sep 30 1998 12:00AM
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