United States Department of Transportation
i
Methods To Improve Freight Highway Performance, Reliability, and Bottlenecks
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2023-11-01
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[PDF-8.34 MB]
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Abstract:Helping freight move efficiently through reduced congestion and bottlenecks along with safety is a key factor in supporting supply chains. This report focuses on freight mobility by looking at the State Department of Transportation (DOT) and metropolitan planning organization (MPO) freight performance measurement, bottleneck reporting, and freight improvement strategies to improve freight mobility and reliability. State DOTs and MPOs have been implementing transportation performance management, including measuring truck travel time reliability (TTTR) and freight truck bottlenecks. Most State DOTs and MPOs use other freight mobility performance measures in addition to the TTTR measure to assess freight mobility and reliability. The most common measures are analyses of delay, including hours of delay and delay per mile, the planning time index (PTI) and travel time index (TTI), a level of service (LOS), or volume-to-capacity ratio, and average truck speed. Also, the National Performance Management Research Data Set (NPMRDS) is the primary data source used by the State DOTs and MPOs for mobility analysis. A Toolbox of Solutions is provided in this document to help States DOTs and MPOs improve freight mobility, reliability, and bottlenecks.
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