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- Title
Long-term evaluation of the operational performance of fixed time ramp metering control strategy: a freeway corridor study.
- Authors
Osman, Osama; Codjoe, Julius; Ishak, Sherif; Rodriguez, Jose; Russell, Marlene
- Abstract
Ramp metering is one of the successful active traffic control strategies to control traffic flow at entry points to freeways. This study evaluates the effectiveness of fixed-time ramp metering control strategy on the day-to-day operation of traffic over two segments (easternmost and westernmost) of the I-12 corridor in Baton Rouge, Louisiana. Detector speeds and volumes were collected over 11 months and used to generate three performance measures, speed, travel time, and level of service to compare traffic conditions before and after the deployment of ramp meters. Comparative analysis, comprising statistical analysis, analysis of travel time savings, and level of service were then undertaken for traffic conditions before and after ramp meters installation. Overall, the results show some improvements in traffic conditions in the eastbound direction of the westernmost segment; however, the conditions slightly deteriorated on the westbound of the same segment. For the easternmost segment of I-12, no improvement was detected.
- Subjects
BATON Rouge (La.); RAMP metering (Traffic engineering); EXPRESS highways; TRAFFIC engineering; TRAFFIC flow; TRAVEL time (Traffic engineering); TRAFFIC speed; COMPARATIVE studies
- Publication
Canadian Journal of Civil Engineering, 2015, Vol 42, Issue 11, p910
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/cjce-2014-0489