Decision Support Tools for Multi-Objective, Multi-Asset, Multimodal Joint Maintenance Programming
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2023-03-01
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Edition:Final Report 2/2020 - 6/30/22
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Abstract:Infrastructure assets, such as roadways, bridges, tunnels, railways, and intermodal terminals, are components of a larger transportation system serving competing goals of drivers, passengers, and freight. While transportation elements are typically managed by category, this can have beneficial or detrimental consequences for services provided across categories as well as for asset performance lives. This project explores opportunities for asset management coordination and develops quantitative capabilities for assessing their effectiveness. The techniques will support tradeoff analyses and prioritization in this multi-objective, multi-decision-maker, and multimodal setting. Case studies involving multi-objective, multi-attribute and multimodal tradeoffs when infrastructure repairs and improvements are undertaken were developed. The case studies revealed the complexity of issues, the many different objectives, and the reliance on experience to integrate multi-objective, multi-attribute and multimodal tradeoffs into decision related to maintenance programming. This project demonstrated the importance of agencies paying attention to the disruption caused to all modes of transportation. Increased interest in non-motorized modes of transportation as a strategy to support sustainable mobility and access is slowly encouraging more users and the mode share of non-motorized modes and becoming significant. Bicycle and pedestrian facilities have been shown to contribute to the changes. However, long-term success requires consideration of how the facilities will be maintained and how to mitigate the disruptions that will occur when shared facilities are maintained or improved.
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