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Title: Assessment of Traffic Control Device Selection Guidelines for Horizontal Curves
Accession Number: 01126649
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: The purpose of curve warning signs and travel path delineation devices is to alert drivers to the presence and severity of a downstream horizontal curve. The advisory speed plaque is the primary device for conveying the appropriate speed message to drivers, but additional devices such as chevrons are often used at sharp curves to emphasize the curvature. This paper describes the development and evaluation of guidelines for selecting traffic control devices for horizontal curves on rural highways. The developed guidelines are based on considerations of side friction and kinetic energy. These guidelines incorporate a curve speed model that was calibrated using data from 41 curve sites in Texas. The developed guidelines are also compared with the guidelines in the 2007 proposed amendments to the "Manual on Uniform Traffic Control Devices," which are based on considerations of speed differential.
Monograph Accession #: 01147425
Report/Paper Numbers: 09-1984
Language: English
Authors: Pratt, Michael PaulBonneson, James APagination: pp 36-44
Publication Date: 2009
ISBN: 9780309142519
Media Type: Print
Features: Figures
(5)
; References
(14)
; Tables
(5)
TRT Terms: Identifier Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control
Files: TRIS, TRB, ATRI
Created Date: Jan 30 2009 6:17PM
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