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From page 1... ... 1 Overview of the Guidebook and Key Issues 1.1 Introduction Information about commodity flows is one of the most critical data needs for freight planning. Commodity flows describe the quantity of commodities that are shipped between origins and destinations and the transportation modes that are used. Read the entire page →
From page 2... ... 2 Guidebook for Developing Subnational Commodity Flow Data flow disaggregation techniques. The Guidebook provides a detailed, stepbystep description of each method. Read the entire page →
From page 3... ... Overview of the Guidebook and Key Issues 3 methods from Chapters 1.0 through 5.0 ( the Methods section) into their own "Playbook" for attack ing a particular freight planning problem. Read the entire page →
From page 4... ... 4 Guidebook for Developing Subnational Commodity Flow Data regions. Figure 1.2 shows a map depicting trade flow between MPO regions in Georgia using a preliminary output from the state's travel demand model. Read the entire page →
From page 5... ... Overview of the Guidebook and Key Issues 5 In the case of intermodal rail, the key factors for determination of the feasibility of a new service include the types of commodities that have a trip end near the yard location and the distance that the goods are being carried. For this type of study, the specific route being used by current traffic is not relevant, therefore routing information is not needed. Read the entire page →
From page 6... ... 6 Guidebook for Developing Subnational Commodity Flow Data 2007 DMSa_ORIG DMS_DEST SCTG2 DMS_ MODE Total Tons (Thousands) Total Dollars (Millions) Read the entire page →
From page 7... ... Overview of the Guidebook and Key Issues 7 Commodity flow information needs to be complemented or supplemented by specific routed flow information. This can come in many forms. Read the entire page →
From page 8... ... 8 Guidebook for Developing Subnational Commodity Flow Data understanding of the current freight flow routing that is likely to divert from highway to rail. Similar to corridor studies, travel demand models are one useful source of these types of estimates. Read the entire page →
From page 9... ... Overview of the Guidebook and Key Issues 9 ence between FAF zones and MPO regions in the Pacific Northwest. For the Seattle and Portland metropolitan regions, the MPO boundaries and the urban boundaries that are defined in FAF do not match. Read the entire page →
From page 10... ... 10 Guidebook for Developing Subnational Commodity Flow Data Primary data collection is the most straightforward approach for developing subnational commodity flow data. Chapter 2.0 of the Guidebook examines data collection methods for estab lishment surveys. Read the entire page →
From page 11... ... Overview of the Guidebook and Key Issues 11 However, it only covers certain commodities. The industries that are covered by the CFS fall into the following North American Industry Classification System (NAICS) Read the entire page →
From page 12... ... 12 Guidebook for Developing Subnational Commodity Flow Data to tons at the twodigit level for textiles can lead to inaccurate results if the actual commodities being moved are actually concentrated into one of the threedigit categories. Variation of commodity characteristics at more disaggregated levels of commodity detail as compared to a more aggregate classification scheme also is important for expanding survey data collected from new sources at the local level. Read the entire page →
From page 13... ... Overview of the Guidebook and Key Issues 13 • The U.S. Census Vehicle Inventory and Use Survey (VIUS) Read the entire page →
From page 14... ... 14 Guidebook for Developing Subnational Commodity Flow Data codes) , the usefulness of more specificity will be limited by the amount of detail available in the existing data sources. Read the entire page →
From page 15... ... Overview of the Guidebook and Key Issues 15 (15 percent) Read the entire page →

From page 1...

... 1 Overview of the Guidebook and Key Issues 1.1 Introduction Information about commodity flows is one of the most critical data needs for freight planning. Commodity flows describe the quantity of commodities that are shipped between origins and destinations and the transportation modes that are used.