| Summary: | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2005. === Includes bibliographical references (leaves 116-118). === High-speed rail (HSR) is primarily for intermediate distance intercity passenger travel. The concept of high-speed rail commuting is to provide short distance commuting transportation service on dedicated HSR, by sharing the same rolling stock and infrastructure. HSR commuting benefit all city commuters by relieving inner city traffic congestion as well as providing intercity service. HSR commuting also benefits its operators providing an additional financial resource. In the US, the rail is primarily for freight. Passengers usually take airlines and automobiles, but the congestion of airports and roads are increasing, which makes another transportation option necessary. Rail passenger transportation is less energy consuming and it is effective for the environment. For the sustainable development of many cities in the US, HSR is a potential option. From successful HSR examples in Japan, French, and Germany, the primary purpose of HSR is intermediate distance intercity passenger transportation, and dedicated tracks are necessary. In the US, there are no HSR by our definition, but there are still HSR transportation potential regional corridors in California, Texas, Florida, and other regions. There are several statewide HSR projects, but none has been constructed. The most difficult hurdle for HSR projects in the US is financial resources, and HSR commuting is a potential for those. Japanese HSR, Shinkansen is the only case of practical HSR commuting in the world. HSR commuting needs no large additional investment. As commuting and intercity travel are complementary behaviors, additional fundamental investments, such as extra tracks and rolling stock, are not necessary. === (cont.) In contrast, for effective HSR commuting, some considerations, such as monthly commuter passes and shifting seat configuration, are necessary. HSR commuting provides fast travel for passengers, but also it is a potential revenue source for intercity HSR projects and operators. Though the geographical and social background in the US is different from that in the countries that have successful HSR, thorough deliberate policy initiative and investment, we suggest HSR commuting would benefit both all commuters in the region and the HSR operator in California. === by Shuichi Kasuya. === S.M.
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