Research problem statements operation and maintenance of transportation facilities.

Research problem statements operation and maintenance of transportation facilities.

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书目详细资料
企业作者: National Research Council (U.S.). Highway Research Board
格式: 图书
语言:English
出版: Washington, D.C. Highway Research Board, National Research Council [1972]
丛编:Highway Research Circular no. 131.
主题:
Highway safety > Research.
Traffic Measurement > Research.
Traffic control and operations > Research.