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Travel Importance and Strategic Investment in Vermont's Transportation Assets.
| 题名： | Travel Importance and Strategic Investment in Vermont's Transportation Assets. |
| 作者： | Novak, D.; Scott, D.; Sullivan, J. |
| 关键词： | Accessibility; Asset Management; Highway Maintenance; Investments; Methodology; Performance Evaluation; Roadways; Transportation Networks; Transportation Planning; Travel; Vermont |
| 摘要： | In recent decades, the wear-and-tear of the last 60 years of travel on our nations transportation infrastructure has outpaced our ability to maintain our highways. In an environment of scarce public resources, addressing this problem will require a re-thinking of our current approaches to strategic transportation planning. As networks become increasingly saturated, focus on the most highly-traveled elements is not enough. New performance measures are required to provide objective information for identifying critical elements in saturated networks under disrupted flow regimes to ensure that scarce resources can be utilized effectively. This project advances a new type of system-wide measurement of link criticality that will provide the tools needed for strategic disinvestment in roads that are not critical to the health and welfare of Vermonters. This new approach requires a paradigm shift in our current planning function and in the methods used to measure the importance of transportation system components. In this research, the Network Robustness Index (NRI) methodology is modified to include a process for considering the reason for travel in valuing roadways in Vermont. In addition, a new planning metric based on critical accessibility to emergency services is introduced, and combined with the NRI to yield a new measure, the access-based NRI (aNRI), that is uniquely suited to disinvestment planning. |
| 报告类型： | 科技报告 |
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