Assembling and Processing Freight Shipment Data - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Assembling and Processing Freight Shipment Data write by Peter Gordon. This book was released on 2001. Assembling and Processing Freight Shipment Data available in PDF, EPUB and Kindle. This research focuses on establishing a systematic non-survey-based method for developing an origin-destination (OD) matrix of freight flows based on secondary data sources. The estimated freight flows and concurrent passenger volumes are loaded onto the regional highway network in the greater Los Angeles area of Southern California. Economic analyses, modeling, and GIS technologies are integrated into building a GIS-based OD matrix for freight flow. In order to load the freight flows onto the regional highway network, a three-step feedback transportation model is developed. It includes trip generation, trip distribution, and traffic assignment. A doubly-constrained gravity model is used to co-distribute and calibrate personal trips and freight trips in the trip distribution step. A version of User-Optimal-Strict On Network Assignment (UO-S-NA) is used to assign all of the vehicle trips to the regional highway network.
Building and Maintaining a Data Warehouse
Building and Maintaining a Data Warehouse - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Building and Maintaining a Data Warehouse write by Fon Silvers. This book was released on 2008-03-18. Building and Maintaining a Data Warehouse available in PDF, EPUB and Kindle. As it is with building a house, most of the work necessary to build a data warehouse is neither visible nor obvious when looking at the completed product. While it may be easy to plan for a data warehouse that incorporates all the right concepts, taking the steps needed to create a warehouse that is as functional and user-friendly as it is theoreti
Guidance for Developing a Freight Transportation Data Architecture
Guidance for Developing a Freight Transportation Data Architecture - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Guidance for Developing a Freight Transportation Data Architecture write by César Augusto Quiroga. This book was released on 2011. Guidance for Developing a Freight Transportation Data Architecture available in PDF, EPUB and Kindle. At head of title: National Cooperative Freight Research Program.
Decisions and Orders of the National Labor Relations Board
Decisions and Orders of the National Labor Relations Board - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Decisions and Orders of the National Labor Relations Board write by United States. National Labor Relations Board. This book was released on 1981. Decisions and Orders of the National Labor Relations Board available in PDF, EPUB and Kindle.
The Freight Analysis Framework Verson 4 (FAF4) - Building the FAF4 Regional Database
The Freight Analysis Framework Verson 4 (FAF4) - Building the FAF4 Regional Database - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Freight Analysis Framework Verson 4 (FAF4) - Building the FAF4 Regional Database write by . This book was released on 2016. The Freight Analysis Framework Verson 4 (FAF4) - Building the FAF4 Regional Database available in PDF, EPUB and Kindle. The Freight Analysis Framework (FAF) integrates data from a variety of sources to create a comprehensive national picture of freight movements among states and major metropolitan areas by all modes of transportation. It provides a national picture of current freight flows to, from, and within the United States, assigns the flows to the transportation network, and projects freight flow patterns into the future. The FAF4 is the fourth database of its kind, FAF1 provided estimates for truck, rail, and water tonnage for calendar year 1998, FAF2 provided a more complete picture based on the 2002 Commodity Flow Survey (CFS) and FAF3 made further improvements building on the 2007 CFS. Since the first FAF effort, a number of changes in both data sources and products have taken place. The FAF4 flow matrix described in this report is used as the base-year data to forecast future freight activities, projecting shipment weights and values from year 2020 to 2045 in five-year intervals. It also provides the basis for annual estimates to the FAF4 flow matrix, aiming to provide users with the timeliest data. Furthermore, FAF4 truck freight is routed on the national highway network to produce the FAF4 network database and flow assignments for truck. This report details the data sources and methodologies applied to develop the base year 2012 FAF4 database. An overview of the FAF4 components is briefly discussed in Section 2. Effects on FAF4 from the changes in the 2012 CFS are highlighted in Section 3. Section 4 provides a general discussion on the process used in filling data gaps within the domestic CFS matrix, specifically on the estimation of CFS suppressed/unpublished cells. Over a dozen CFS OOS components of FAF4 are then addressed in Section 5 through Section 11 of this report. This includes discussions of farm-based agricultural shipments in Section 5, shipments from fishery and logging sectors in Section 6. Shipments of municipal solid wastes and debris from construction and demolition activities are covered in Section 7. Movements involving OOS industry sectors on Retail, Services, and Household/Business Moves are addressed in Section 8. Flows of OOS commodity on crude petroleum and natural gas are presented in Sections 9 and 10, respectively. Discussions regarding shipments of foreign trade, including trade with Canada/Mexico, international airfreight, and waterborne foreign trade, are then discussed in Section 11. Several appendices are also provided at the end of this report to offer additional information.
