01126971

Component

https://doi.org/10.3141/2122-02

http://scholar.google.com...iles&publication_year=2009

This paper examines procedures for setting curve advisory speeds, identifies issues associated with these procedures, and describes a proposed procedure that overcomes many of these issues. The proposed procedure consists of three elements: a criterion for setting the curve advisory speed, a method for determining this speed, and an engineering study method that confirms the need for an advisory speed plaque. One conclusion is that challenges associated with the use of the ball-bank indicator hinder achieving curve advisory speeds that are uniform in curves and consistent with driver expectation. The proposed procedure is shown to overcome these challenges.

01147425

09-1159

English

pp 9-16

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309142519

Print

Figures (6) ; References (13)

Highway curves; Procedures; Speed control

Advisory speed signing; Advisory warning; Driver expectations

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Jan 30 2009 5:22PM

• Advance Warning Signals: Long-Term Monitoring Results
• Assessment of Traffic Control Device Selection Guidelines for Horizontal Curves
• Comparison of Driver Behavior at Highway–Railroad Crossings in Two Cities
• Effect of Luminance and Text Size on Information Acquisition Time from Traffic Signs (With Discussion and Closure)
• Evaluating Effectiveness of Dynamic Speed Display Signs in Transition Zones of Two-Lane, Rural Highways in Pennsylvania
• Evaluation of Effectiveness of Stop Sign Treatments at Highway–Railroad Grade Crossings
• Examination of Highway–Rail Grade Crossing Collisions Nationally from 1998 to 2007
• Improving Signing from the Installation Perspective: Creating the "Sign Crew Field Book"
• Path Guidance Information in Advance of Work Zones at Urban Freeway Interchanges