Travel behavior theory is one of the most important theories in traffic planning, management and control.

出行行为理论是交通规划乃至交通管理与控制中最重要的理论之一。

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Then, introduces the urban traffic emergency management research from the respect of urban transport planning, traffic engineering design and traffic management and control.

然后从城市交通规划、交通工程设计和交通管理与制约方面介绍了城市交通应急管理的研究方向。

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The main aim of traffic engineering is on planning, design and implementation of transportation network and traffic control systems.

而交通工程的主要目的在于交通运输网络和交通控制系统的规划、设计和建立。

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In addition to furloughs, the FAA is planning to eliminate midnight shifts for air traffic controllers at 60 airport towers, close over 100 control towers at smaller airports and reduce preventative maintenance of equipment.

NPR: How Budget Cuts Could Affect You