Scientists and policymakers intend worldwide emissions reduction of up to 80 percent of carbon dioxide (CO2) and other greenhouse gases (GHGs) in the next four decades to stabilize atmospheric concentrations (TRB 2011). Henceforth, an immediate response from the transportation sector, one of the largest producers of GHGs (up to 30 percent in the U.S.), is critical for GHGs reduction. Possible l...

Very high speed rail may be a competitive mode of transportation for California's future. This article presents an evaluation of the economic and comprehensive benefits and costs associated with such an endeavor. The results indicate competitive comprehensive rates of return and a potential for project self-financing, suggesting that such a project merits serious consideration by the State.

Telework has been proposed as a possible remedy to traffic and air pollution problems. This paper presents a model of telework’s direct air pollution implications by quantifying personal and public transportation, office and home electronic equipment use, lighting, heating and cooling effects. An example scenario is created based on data from the National Telework Survey to assess the environme...

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In recent years, China keeps working on restructuring the country’s multimodal transport and highly develops high-speed rail (HSR) infrastructure to improve efficiency. As economic engine of China, Yangtze River Delta region leading HSR development transporting modal transformation within whole country. The fast one hand improves passengers’ travel efficiency and, other hand, releases capacity ...

Since its early days the development of railway systems has been an important driving force for technological progress. From the 1840s onward a dense railroad network was spread all over the world. Within a few decades railway became the predominant traffic system carrying a steadily increasing volume of goods and number of passengers. This rapid development was accompanied by substantial devel...