Identifying and Using Low-Cost and Quickly Implementable Ways to Address Freight-System Mobility Constraints (2010) / Chapter Skim
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Pages 68-75
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From page 68... ...
The following sections describe the methodology followed by a discussion of how it could be integrated into the planning process. 6.2 Framework of Methodology The purpose of the methodology is to assist public- and private-sector decision makers in identifying and evaluating low-cost capital, operational, regulatory, or public policy actions to improve freight mobility.
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From page 69... ...
Mode • Highway • Rail • Deepwater ports & inland waterways Mode subcategory • Rural interstate • Rural principal arterial • Urban interstate • Urban principal arterial • Intermodal connector Constraint Location • Interchange/ramp • Intersection • Mainline • Construction zone Constraint type • Physical • Operational • Regulatory Figure 23. Characterization of constraint.
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From page 70... ...
Freight mobility constraints associated with deepwater ports and inland waterway modes are influenced to some extent, but not exclusively, by the highway and rail intermodal links to the ports. Consequently, some of the physical constraints are influenced by these intermodal connectors.
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From page 71... ...
terminal operators and occur within the boundaries under their control. Due to the competitive nature of freight-system operators and modes, it is the challenge of the freight transportation system to encourage the individual operations within the entire freight mobility transportation system to work together to coordinate their individual improvements.
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From page 72... ...
Regardless of the source of new data, extensive effort will be required to fully populate the database with good examples. Since no standard process exists to define, describe, or measure such freight mobility constraint alleviation projects, the process of collecting a substantial number of candidate examples will continue to be time consuming and expensive.
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From page 73... ...
Different scenarios can be based upon alternative assumptions about growth rates or funding levels for the region. The low-cost freight constraint evaluation methodology can be used to identify the most likely types of improvements that could be considered to address freight mobility constraints, once the constraints have been identified through the transportation modeling process.
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From page 74... ...
chokepoints and promising freight strategies, which must be further prioritized into chronological periods. The potential freight bottleneck projects identified through the Transportation Plan can be further evaluated and prioritized through the methodology for prioritization in the short-term TIP.
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From page 75... ...
The general consensus was that the tool provides a structured handy format and configuration for accessing information on proven low-cost improvements to address freight mobility constraints. As standalone software, information contained in the database is static and cannot be easily updated.
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