Development and Analysis of a GIS-based Statewide Freight Data Flow Network - 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 Development and Analysis of a GIS-based Statewide Freight Data Flow Network write by . This book was released on 2009. Development and Analysis of a GIS-based Statewide Freight Data Flow Network available in PDF, EPUB and Kindle.
Assembling and Processing Freight Shipment Data
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.
Development of a GIS Model for Intermodal Freight
Development of a GIS Model for Intermodal Freight - 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 Development of a GIS Model for Intermodal Freight write by Glenn Collin Standifer. This book was released on 2000. Development of a GIS Model for Intermodal Freight available in PDF, EPUB and Kindle. The purpose of this report is to demonstrate usage of Geographical Information Systems (GIS) for analyzing intermodal freight networks. A complete GIS network, focused on the state of Texas, is developed and used to examine impacts of price, time, location, and policy on shipper routing. This process begins with an exploration of existing GIS applications, and state of the practice within the intermodal freight industry. This information provides a framework for building a technically feasible and relevant application. Data acquisition and processing techniques for both geographic and attribute data are considered. Relevant processes for creation of a GIS network and data conflation are identified and demonstrated. These techniques are used to create a network modeling the complex interactions and transfer rules amongst modes. Finally, several case studies are developed using the completed network to exhibit the power of GIS applied to intermodal freight. The report concludes with a summary, and observations to assist others attempting to build upon these results.
Application of a Statewide Intermodal Freight Planning Methodology
Application of a Statewide Intermodal Freight Planning Methodology - 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 Application of a Statewide Intermodal Freight Planning Methodology write by James J. Brogan. This book was released on 2001. Application of a Statewide Intermodal Freight Planning Methodology available in PDF, EPUB and Kindle. Anticipating the need for Virginia to comply with the new freight planning requirements mandated by ISTEA and TEA-21, the Virginia Transportation Research Council in 1998 developed a Statewide Intermodal Freight Transportation Planning Methodology, which provided a standard framework for identifying problems and evaluating alternative improvements to Virginia's freight transportation infrastructure. The first step in the methodology was to inventory the system. This study completed that step. In this study, a freight advisory committee, consisting of public and private freight stakeholders, was formed. Next, county-level commodity flow data were commercially procured. Using these data, Virginia's "key" commodities were identified, and the flows of these commodities were assigned to county-level O-D tables. A geographic information system (GIS) database was developed that showed freight flows, county-level population and employment information, and Virginia's freight transportation network. With the use of various statistical analysis techniques, freight generation and attraction relationships were defined, and predictive equations were developed for each of Virginia's key commodities. Future freight flows were predicted, and various models with which to distribute these future flows were evaluated. The freight transportation GIS database, along with the analytical tools to predict and display future freight flows within Virginia, provides the Virginia Department of Transportation and its Freight Advisory Committee the means by which to identify problems, establish performance measures, and develop and evaluate alternatives to improve the flow of freight into, out of, and within Virginia
Geospatial Challenges in the 21st Century
Geospatial Challenges in the 21st Century - 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 Geospatial Challenges in the 21st Century write by Kostis Koutsopoulos. This book was released on 2019-01-16. Geospatial Challenges in the 21st Century available in PDF, EPUB and Kindle. This book focuses on 21st century geospatial technologies (GT). It highlights their broad range of capabilities and their essential role in effectively addressing and resolving critical everyday issues, such as environment, sustainability, climate change, urban planning, economy, culture and geopolitics. Featuring chapters written by leading international scientists, it discusses the application of GT tools and demonstrates that the problems requiring such tools transcend national boundaries, cultures, political systems and scientific backgrounds on a global scale. In addition, it enhances readers’ spatial understanding of, and geographical reasoning in connection with, societal issues. The book will appeal to scientists, teachers and students of geography, the earth sciences and related areas, as well as decision-makers interested in the application and capabilities of geospatial technologies and new, spatial methods for addressing important issues.
