Skip to main content

Currently Skimming:


Pages 7-9

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 7...
... 53 CURRENT STATE OF THE PRACTICE BACKGROUND Major changes in domestic and global freight transportation have occurred over the past several decades. These changes have been driven by population growth, changes in consumer behavior, dynamic market and economic forces, and advances in transportation and information technology.
From page 8...
... 6FREIGHT DEMAND MODELING AND DATA IMPROVEMENT STRATEGIC PLAN SUMMARY ASSESSMENT OF CURRENT FREIGHT MODELS, DATA, AND TECHNIQUES Freight planning and forecasting employ a variety of tools and techniques, including economic flow models, land use and economic input–output analyses, commoditybased models, vehicle- or trip-based models, and other analytic tools. The common underlying objective is to document baseline conditions related to freight movement and estimate future activity based on metrics involving economic activity, demographic changes, employment by economic sector, supply and demand of raw materials and finished products by consumers and industries, commodity flows, and other factors.
From page 9...
... 7FREIGHT DEMAND MODELING AND DATA IMPROVEMENT STRATEGIC PLAN • Current planning tools and data do not accurately reflect the nature of supply chains and increasingly complex logistics practices in freight-dependent industries; • Documenting the various factors that influence freight transportation needs is challenging because establishing links between disparate data resources (e.g., land use, demographics, employment by industry) and the freight activity that relates to these measures (e.g., truck counts, vessel activity, rail activity)

Key Terms



This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More information on Chapter Skim is available.