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倒计时信号灯大规模上岗
2017-09-07 06:12:01 中国青年网
本报讯(记者王艺)记者昨日获悉,为了有针对性地解决我市交通信号灯路口绿灯跟进、闯红灯等不文明驾驶行为,预防和减少路口交通事故隐患,提高通行效率,市交警支队推行交通科技管理新举措,对市区内主要路街上的信号灯进行绿灯9秒倒计时技术改造。目前我市中山路、人民路、胜利路、高尔基路、五四路等204处路口完成了1639套信号灯倒计时改造。交警部门根据实际观察和非现场违法采集情况判断相应路口绿灯跟进和闯红灯情况明显减少,因路口急刹引发的交通事故也明显减少。
据了解,绿灯9秒倒计时采用了很多智能化的技术,克服了普通倒计时显示功能信号灯机械式的运行方式(只能固定信号配时的弊端),可根据一段时间内交通流量自动适应红绿灯信号配时调整;信号灯的绿灯周期时长可根据路面检测器检测到的车流变化实时调整,使系统能够在绿灯工作最后9秒进行识别并进行倒计时控制,对智能交通信号控制系统实现自适应。
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