研究了运用PLC技术的交通信号控制系统，用简洁的软硬件使其智能化程度更高。
PLC technology is applied in traffic signal control system, which USES succinct software and hardware to improve the intelligent level of DCS intelligent traffic control system.
它的主要作用在于通过有规律的控制和运用交通信号使得车辆有秩序地驶离冲突区域，是解决交通拥挤的一种强制性手段。
Its main role is to control through laws and use of traffic signals so that vehicles in an orderly manner away from conflict zones, it is a compulsory means to solve traffic jam.
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