Research problem statements operation and maintenance of transportation facilities.

Research problem statements operation and maintenance of transportation facilities.

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書目詳細資料
企業作者: National Research Council (U.S.). Highway Research Board
格式: 圖書
語言:English
出版: Washington, D.C. Highway Research Board, National Research Council [1972]
叢編:Highway Research Circular no. 131.
主題:
Highway safety > Research.
Traffic Measurement > Research.
Traffic control and operations > Research.