Abstract
Access management in transportation planning can save travel time, reduce crashes, and increase route capacities. The planning literature suggests a need for performance metrics and a decision-aiding framework to guide access management programs across large corridor networks and diverse time horizons. This paper describes a quantitative framework to support access management programs, applying multicriteria analysis and cost-benefit analysis with parameter uncertainties. The metrics used to assess relative priorities at existing access points include the following: travel time delay index, traffic exposure, value of time, and costs of typical access management activities. Uncertain parameters that influence the estimates of the potential benefits and costs are identified and treated via a numerical interval analysis. The framework is demonstrated at several geographic scales and locations including 7,000 km of highway arterials of a 110,000 square-kilometer region and several sub-regions. The results assist decision makers to identify route segments that should be addressed sooner by eliciting additional information, reserving right-of-way, closing access points, planning new alignments, facilitating development proffers, etc. The approach is transferable to other topics involving resource allocation for preservation and improvement of multiscale infrastructure systems.
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Acknowledgments
The authors received support from the effort part form the Virginia Center for Transportation Innovation and Research, the US Federal Highway Administration, and the Virginia DOT. The authors are grateful to Chad Tucker, Robin Grier, Paul Grasewicsz, John Miller, Rob Hofrichter, Ben Mannell, Marsha Fiol, Rick Tambellini, and Amy O’Leary of the Virginia Department of Transportation. Former University of Virginia students who contributed to the data collection include Shital A. Thekdi, Andrew P. Watson, Natasha L. Hemminger, Philip A. Rinehart, John R. Fitzsimmons, R. John MacKenzie, and Zubin C. George.
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Xu, J., Lambert, J.H. Distributed travel time savings of a multiscale transportation access management program. Environ Syst Decis 33, 362–375 (2013). https://doi.org/10.1007/s10669-013-9459-0
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DOI: https://doi.org/10.1007/s10669-013-9459-0