SLOTTED LEFT TURN BAYS AT SIGNALIZED INTERSECTIONS
Although the use of slotted left-turn bays has become an increasingly popular design as a replacement for parallel left-turn bays in Alberta, little is known with respect to the efficiency of this new design. The research work presented in this study more discreetly analyzes and evaluates the role and function of slotted left-turn bays in order to aid decision makers in determining those situations where slotted left-turn bays will be most cost effective and efficient. The three main objectives of this study were to review the history and current use of slotted left-turn bays in both Canada and the United States; complete a limited data collection and analysis program in order to determine the effectiveness of slotted left-turn bays with respect to intersection capacity and safety benefits; develop a set of guidelines for the installation of slotted left-turn bays based upon the findings of the first two objectives. (TRRL)
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Corporate Authors:
Stanley Associates Engineering Limited
Mayfield Business Centre, 10512-169 Street
Edmonton, AB Canada - Publication Date: 1983
Media Info
- Features: Figures; Tables;
- Pagination: 63 p.
Subject/Index Terms
- TRT Terms: Bays; Benefit cost analysis; Cost effectiveness; Economic efficiency; Guidelines; Highway capacity; Highway safety; Intersections; Left turn lanes; Safety; Signalized intersections; Traffic signals; Turning traffic
- Uncontrolled Terms: Efficiency; Intersection capacity
- Geographic Terms: Canada; United States
- Old TRIS Terms: Left turn bays; Slotting
- ITRD Terms: 8018: Canada; 643: Capacity (road, footway); 226: Cost benefit analysis; 5911: Efficiency; 455: Junction; 1665: Safety; 565: Traffic signal; 1836: Turning; 8122: USA
- Subject Areas: Economics; Highways; Operations and Traffic Management; Planning and Forecasting; Safety and Human Factors; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 00379865
- Record Type: Publication
- Source Agency: Transportation Association of Canada (TAC)
- Report/Paper Numbers: Monograph
- Files: ITRD, TRIS
- Created Date: Feb 29 1984 12:00AM