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原文传递 Improving the Movements of People and Freight: A Case Study of the Piedmont Atlantic Megaregion.

题名：	Improving the Movements of People and Freight: A Case Study of the Piedmont Atlantic Megaregion.
作者：	Fan, W.; Yu, M.
关键词：	Freight analysis, Case study, Geographic Information System (GIS), Piedmont Atlantic Megaregion (PAM), Multimodal analysis, Roadways, Travel time, High-speed rail (HSR) service, Accessibility assessment
摘要：	As a new geographic unit, megaregion interlocks economic systems, shares natural resources, and links people together. About three-quarters of national population and wealth are concentrated in the megaregional areas that occupy one-fourth of the land area in the United States. Projections indicate the continuing leading role of megaregions in future population and economic growth. Megaregions are playing an increasingly critical role in regional and global economic competition. In addition, businesses, policymakers, and community leaders are confronted by challenges which can be addressed at a mega-regional level. For example, one of the challenges is protecting public watersheds that span multiple state and regional boundaries. The emerging recognition of megaregions enables cooperation across jurisdictional borders to address specific challenges and presents an opportunity to reshape large federal system of infrastructure and funding. The purpose of this research is to consider the Piedmont Atlantic Megaregion (PAM) with an emphasis on maintaining efficient future people and freight movements while offering multimodal solutions to moving people and freight to, between, and within the metropolitan economies of the megaregion. The needs, impacts, and benefits of high-speed intercity passenger rails are carefully examined and objectively quantified. The issues and themes that arise in the mega-region evolution and development context, including megaregional freight planning, social equity and health access issues, are discussed and addressed. The future mobility demand in the PAM is estimated based on the projected gross domestic product and population data in 2050. The freight planning at a mega-regional level is studied. The opportunities and challenges faced by the PAM are discussed. In order to improve the movement of goods in the PAM, several recommendations are drawn. A geographic information system tool is used to conduct the accessibility assessment of high-speed rail in the PAM. The door-to-door approach is adopted to evaluate the multimodal (including roadways and high-speed rail) travel time. Three accessibility indicators are selected and compared, including the weighted average travel time, daily accessibility, and potential accessibility. Policy implications are drawn in terms of enhancing the megaregional accessibility.
报告类型：	科技报告