The control of traffic appertains to the police.

指挥交通属于警察的任务。

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Urban traffic is an important branch of transportation system. Traffic control, especially control of traffic signal light is a dominating part of urban traffic research.

城市交通是交通系统的重要组成部分，交通控制，特别是交通信号灯的控制是城市交通研究的主要内容。

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The volume of scheduled flights is straining the air traffic control system.

定期航班的数量使空中交通控制系统受到压力。

《柯林斯英汉双解大词典》

Brian Flynn,head of operations at the European air traffic control body, addressed a press conference in Brussels.

VOA: standard.2010.04.16

The U.S.military has assumed control of air traffic control in and out of the capital, prompting complaints from some aid organizations and foreign officials.

VOA: standard.2010.01.18

If significant numbers of autonomous vehicles are on the road, they could even be used collectively to control the flow of traffic, which might help minimize traffic jams, thereby decreasing commute times and avoiding all that stop-and-go traffic that wears down vehicles and it bad for the environment.

FORBES: Self-Driving Cars From Google On The Road Toward Approval In California

Cuts to the FAA would likely result in more flight cancellations, delays, and the complete elimination of air traffic control services in parts of the country.

WHITEHOUSE: President Obama Speaks at the Associated Press Luncheon

The A387 at Sandplace Road has been closed while the B3253 St Martin's Hill is under traffic light control, letting one lane of traffic through at a time.

BBC: Looe main access roads hit by landslips