United States Department of Transportation
i
Integrated corridor management analysis, modeling, and simulation for the I-15 corridor in San Diego, California post-deployment assessment report.
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2016-12-01
[PDF-4.42 MB]
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Abstract:The U.S. Department of Transportation Integrated Corridor Management (ICM) Initiative aims to advance the state of the practice in transportation corridor operations to manage congestion. Through the deployment of ICM at the two selected Demonstration Sites (Dallas, Texas and San Diego, California), this initiative thoroughly investigated and documented the impacts of the ICM deployments, especially in regards to improved agency coordination. Analysis, Modeling and Simulation (AMS) efforts assisted corridor partners to optimize their ICM deployment, and supported the broader evaluation effort for the entire ICM Initiative. Using AMS enabled corridor partners to identify the strategies to include in their ICM System that would be most effective against their specific corridor congestion issues, by providing measureable results for multiple alternatives. The focus of this ICM Post-Deployment assessment is to investigate the impacts of the ICM system in its “as deployed” state on I-15 in San Diego, using AMS tools and techniques developed and refined under both the current and previous phases of the program. The localized ICM strategies deployed include an active decision support system, coordinated incident management, freeway coordinated ramp metering, improved multi-modal traveler information, upgrades to selected traffic signal systems, and active arterial routing. A framework of the key activities required for post-deployment AMS, namely model enhancements, model calibration and validation, cluster analysis and incident matching, and alternatives analysis, is presented. Mobility performance results for the site’s peak directions of travel indicate an expected annual savings of 267,850 person hours, while expected cumulative annual variability improvements amounted to 188,816 hours.
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