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（续，接第7期）2．美国的交通信息系统（1）研究开发动向美国以ITS美国为主体，以实用化为目标，投入很大精力进行现场实验。1992年5月，制定工作为今后脱年基本构想的《战略规划书》，其中包括“先进的交通信息系统”（ATIS：AdvancedTravelersInformationSystem）和“先进的
(Continued, then No. 7) 2. Transportation Information System in the United States (1) Research and Development Trends The United States, with ITS America as its main body and its practicalization as the goal, devoted a great deal of energy to field experiments. In May 1992, a “strategic plan” for working out the basic concept of getting off year was drawn up, including “Advanced Traffic Information System” (ATIS) and "Advanced