求翻译：目前，国内交通信号灯普遍采用定周期程控技术，即主要靠经验和以往统计数据确定红绿灯亮灭时间。要实现道路交通的智能化，就要引入变周期交通信号灯控制技术，实时检测路口的交通流量以及拥塞量等数据，根据规则动态地调节信号灯，获得更加满意的通行率。是什么意思？

Currently, the domestic traffic lights commonly used programmable technology given period , ie mainly on experience and past statistical data to determine traffic lights blinking time .

At present, the domestic traffic lights in a given period controlled technology, that is, the main rely on experience and past statistical data to determine traffic lights on and off. To achieve road, smart, and it is necessary to introduce change cycle traffic lights control technology, real-time d

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