00812410

Component

http://onlinepubs.trb.org.../circulars/ec019/ec019.pdf

Historically, engineers have designed intersections characterized by sizeable right-turn volumes using a variety of strategies. For example, channelization in the form of a painted island, small raised island, or a large raised island is one element often incorporated into the design. In addition, traffic control may be addressed using right-turn-on-red, dedicated turn lanes with stop control, or dedicated turn lanes with yield control. This paper focuses on how Cobb County, Georgia, located in the metro-Atlanta area, handles these right-turn movements. The study identifies application of various right-turn strategies based on observed field operation conditions. A comparative analysis of applications based on a two-year crash history helps to identify (preliminarily) possible safety limitations associated with the various right-turn strategies. The primary objective of this study is to share considerations, strategies, and limitations of the various right-turn configurations and to identify strategies appropriate for further in-depth analysis.

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00812391

E-C019,
Paper A-1
Paper A-2

English

11 p.

2000-12

Transportation Research Circular

Figures (3) ; References; Tables (1)

Alternatives analysis; Highway design; Right turn lanes; Right turn on red; Right turns; Signalized intersections; Traffic control; Traffic crashes

Cobb County (Georgia)

Design; Highways; Operations and Traffic Management; Planning and Forecasting; Safety and Human Factors; I21: Planning of Transport Infrastructure; I73: Traffic Control; I82: Accidents and Transport Infrastructure

TRIS, TRB

Jun 5 2001 12:00AM

• A PRACTITIONER'S PERSPECTIVE ON FLEXIBLE DESIGN
• ACCESS SPACING AND ACCIDENTS: A CONCEPTUAL ANALYSIS
• ACCESS SPACING AND TRAFFIC SAFETY
• APPLICATION OF ROAD SAFETY AUDITS TO URBAN STREETS
• ARTERIAL SPEED CALMING: MOHAWK ROAD CASE STUDY
• CALMING NEW YORK CITY INTERSECTIONS
• CITIZEN TRANSPORTATION PLANNING: A WORKING MODEL
• CONTINUOUS SPEED MEASUREMENT OF INDIVIDUAL DRIVERS ON SUBURBAN ARTERIALS
• CURB PARKING FINDINGS REVISITED
• DESIGN CONSIDERATIONS FOR EXISTING UTILITY POLES IN URBAN AREAS
• DESIGNING FUNCTIONAL STREETS THAT CONTRIBUTE TO OUR QUALITY OF LIFE
• DEVELOPING STREET STANDARDS THAT ALLOW FLEXIBILITY
• DOWNTOWN STREETS: ARE WE STRANGLING OURSELVES IN ONE-WAY NETWORKS?
• DRIVEWAY SPACING AND TRAFFIC OPERATIONS
• ECONOMIC IMPACTS OR RAISED MEDIANS ON ADJACENT BUSINESSES
• IMPACTS OF TRAFFIC CALMING
• LINKING LAND USE AND TRANSPORTATION THROUGH STREET DESIGN
• MOBILITY-FRIENDLY STREET STANDARDS FOR DELAWARE
• NEOTRADITIONAL DESIGN: MOBILITY FOR ALL AGES
• PEDESTRIAN LEVEL OF SERVICE BASED ON TRIP QUALITY
• PLANNING AND DESIGN OF A SUBURBAN NEOTRADITIONAL NEIGHBORHOOD
• PREDICTING ANNUAL INTERSECTION ACCIDENTS WITH CONFLICT OPPORTUNITIES
• PUBLIC INVOLVEMENT IN MEDIAN PROJECTS
• PUBLIC PERCEPTION OF MEDIAN TREATMENT FOR DEVELOPED URBAN ROADS
• QUESTIONABLE CONCEPTS IN NEOTRADITIONAL SUBDIVISION DESIGN
• SPEED MANAGEMENT TECHNIQUES FOR COLLECTORS AND ARTERIALS
• SPEED PROFILES: A METHOD FOR ANALYZING SPEED ADAPTATION BY CAR DRIVERS
• STREET DESIGN GUIDELINES FOR HEALTHY NEIGHBORHOODS
• STREET SPACING AND SCALE
• THE CONVERSION OF FOUR-LANE UNDIVIDED URBAN ROADWAYS TO THREE-LANE FACILITIES
• THE SPLIT INTERSECTION: A SOLUTION FOR A CONGESTED INTERSECTION
• UNCONVENTIONAL LEFT-TURN ALTERNATIVES FOR URBAN AND SUBURBAN ARTERIALS: AN UPDATE
• URBAN ROADWAY CLASSIFICATION: BEFORE THE DESIGN BEGINS
• URBAN STREET CROSS SECTION AND SPEED ISSUES
• WEST PALM BEACH TRAFFIC CALMING: THE SECOND GENERATION