ANALYSIS OF THE COST-EFFECTIVENESS OF IMPROVING URBAN AT GRADE INTERSECTIONS. FINAL REPORT
A simple and practical procedure is developed for evaluating improvements to isolated signalized intersections involving operational, economic and safety impact considerations. The result is a step-by-step procedure by which planners and engineers can compare the benefits and costs of improvements to isolated signalized intersections. The procedure was synthesized from literature and a survey of current practices in Florida at city, county and state levels. The sketch planning process incorporates benefit/cost techniques and the Signal Operations Analysis Package (SOAP) thus improving upon previous methods. Factors incorporated into the process include right-of-way needs, fuel consumption, benefit/cost ratio, staged improvement options, and safety considerations. In a case study, the average delay and level of service attributable to alternative staged improvement plans (during the planning horizon) is exhibited graphically illustrating the adaptability of the system to achieving an acceptable level of service at a specified future date. The case study shows that the sketch planning process developed in this research can be applied to almost any urban isolated signalized intersection, providing that accurate input data are available and that practical results can be generated.
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Corporate Authors:
University of Florida, Gainesville
Department of Civil Engineering, P.O. Box 116580
Gainesville, FL United States 32611-6580Florida Department of Transportation
P.O. Box 1029
Gainesville, FL United States 32602Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Collier, C A
- Najafi, F T
- Nassar, F
- Alqasem, R
- Ozgul, E
- Publication Date: 1988-3
Media Info
- Features: Appendices; Figures; References; Tables;
- Pagination: 174 p.
Subject/Index Terms
- TRT Terms: Alternatives analysis; Benefit cost analysis; Case studies; Cost effectiveness; Fuel consumption; Improvements; Level of service; Right of way (Land); Safety; Signalized intersections; Sketch planning; Traffic delays; Urban areas
- Old TRIS Terms: Sketch planning techniques
- Subject Areas: Economics; Energy; Highways; Operations and Traffic Management; Safety and Human Factors; Society; I73: Traffic Control;
Filing Info
- Accession Number: 00470947
- Record Type: Publication
- Report/Paper Numbers: FL/DOT/BMR-316/86-15
- Contract Numbers: FL/DOT/BMR-316/86-15
- Files: TRIS, USDOT, STATEDOT
- Created Date: Aug 31 1988 12:00AM