Conference Interactive Program
To view the 2013 Annual Meeting Interactive Program
TRB 91st Annual Meeting (January 22-26, 2012)
Freeway and Arterial Analysis and Performance Measurement
Jan 25 2012 10:15AM- 12:00PM
Hilton, Georgetown East
This session presents recently developed methods, tools, and strategies for measuring and monitoring freeway and arterial performance in different areas, including congestion, reliability, emissions, and asset management.
Framework for Aggregating Highway Asset Performance Measures: Application to Resource Allocation Across Assets (12-3478)
Transportation infrastructure engineers and managers have realized the importance of appropriate performance assessment and its outcome on the overall infrastructure performance and condition. The need for robust, comprehensive and informative performance measures requires further research and study in this area. Recently, the Virginia Tech Transportation Institute Center for Sustainable Transportation Infrastructure proposed a flexible framework to aggregate condition measures of different highway infrastructure assets and to translate the measures into corridor-level health indicators. Within that framework, different health indicators for one asset are aggregated into an associated asset health rating, and all asset health ratings are combined into a corridor health rating. This paper modifies this framework to develop a robust performance assessment method that can be used to determine the impact of investment decisions on the various dimensions of performance at the corridor level. Instead of aggregating different health indicators of an asset into one asset health rating, the current method proposes aggregating similar health indicators of different assets into the associated ï¿½corridor health indicatorsï¿½ to develop corridor-level performance measures. The application of the methodology on a segment of the Interstate 81 corridor suggests that the modified approach enables consistent monitoring at corridor level with respect to different health indicators. The corridor indicators are homogeneous (are combined from similar health indicators of different assets). The practicality of the approach is illustrated through its application in a resource allocation example. The results show that the framework can help decision makers as a guideline to allocate resources across different highway assets.
Dehghani, Mohammad Saied, Virginia Polytechnic Institute and State University
Flintsch, Gerardo W., Virginia Polytechnic Institute and State University
Verhoeven, Jack George, Virginia Tech Transportation Institute
Transportation Research Board. 500 Fifth St. NW, Washington, D.C. 20001
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