Forecasting Statewide Freight Toolkit (2008) / Chapter Skim
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Pages 35-41
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From page 35... ...
• Measures, Markers and Mileposts: The Grey Notebook for the Quarter Ending June 30, 2002. Washington State Department of Transportation, June 30, 2002.
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From page 36... ...
Several others are measurements of people's opinions and perceptions. 7.3 Tools for Measuring Performance Sections 4.0 and 6.0 provide detailed descriptions of five freight model classes and their various components.
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• Average Circuitry for Truck Trips of Selected O-D Pattern. This travel time-based or distance-based measure addresses issues of accessibility and connectivity in truck routes.
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. Average circuity for truck trips of selected O-D pattern.
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39 Air cargo carrier route miles. Amount of turning radius from major highway to intermodal facility.
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. Model Component Model Class Direct Factoring Trip Generation Trip Distribution Mode Split Traffic Assignment Economic/Land Use Modeling Facility Factoring Method Of facility flows O-D Factoring Method Of O-D flows Included Included Truck Model Based on exogenously supplied zonal activity Included Not Applicable Included Four- Step Commodity Model Based on exogenously supplied zonal activity Included Included Included Economic Activity Model Based on out- puts of eco- nomic model Included Included Included Included Table 7.5.
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From page 41... ...
Stratifying the measure by light duty, heavy duty, and through trips helps states understand the nature and purpose of truck trips in a region, as well as predict safety and pavement preservation problems (see "Percent of Traffic on Regional Highway that is Heavy Truck")
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