Research problem statements operation and maintenance of transportation facilities.

Research problem statements operation and maintenance of transportation facilities.

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Библиографические подробности
Соавтор: National Research Council (U.S.). Highway Research Board
Формат: ‌
Язык:English
Опубликовано: Washington, D.C. Highway Research Board, National Research Council [1972]
Серии:Highway Research Circular no. 131.
Предметы:
Highway safety > Research.
Traffic Measurement > Research.
Traffic control and operations > Research.