The main trigger technology used in red-light systems is the induction loop.

用于红灯系统的主要触发器技术是感应线圈。

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The testing method for imaging quality of visible light systems has been applied in infrared optical systems.

研究了可见光系统星点检验方法在红外光学系统中的应用。

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Adopting traffic light systems that improve the flow addresses only one part of the problem because vehicles are driven by humans and their behavior can have a significant effect on traffic flows.

采用这种红绿灯改善交通流量只解决了问题的一个方面。因为车辆是由人驾驶的，司机的行为对于交通流量有着至关重要的影响。

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However,in the light of the new development, we have reinforced our security systems in all our airports,".

VOA: standard.2009.12.28

In total, around 75 "Lion Light" systems have so far been rigged up around Kenya.

CNN: Boy scares off lions with flashy invention

Even with the light rail systems, these metro areas are still more friendly to drivers than non-drivers.

FORBES: Restrictive Zoning Is Crippling Silicon Valley's Transit Options

"If the goal of employing red-light camera systems is to improve driver safety, the data suggest that the program has failed, " New Jersey state Sen.

WSJ: Jenkins: The Answer Is a Longer Yellow