红灯停,绿灯行,交通信号灯正是用这一红一绿规范着行人与车辆的交通行为。交通信号灯作为城市交通监管系统的重要组成部分和控制城市运行秩序的一种基本语言,与我们的日常生活、工作息息相关。最早的交通信号灯诞生在英国伦敦,距今已有近150年了。今天,随着科技的发展,交通信号灯发生着不断的演变,为了保证城市交通的顺畅和人民生命财产的安全,它变得更先进,更适应现代道路交通。当然,沈阳最早的红绿两色交通信号灯在当时也 Red light stop, green light, traffic lights It is with this red and green norms of pedestrians and vehicles traffic behavior. Traffic lights, as an important part of the urban traffic regulation system and a basic language for controlling urban operation, are closely related to our daily life and work. The earliest traffic lights were born in London, England, nearly 150 years ago. Today, with the development of science and technology, traffic lights have undergone continuous evolution. In order to ensure the smooth traffic in cities and the safety of people’s lives and property, it has become more advanced and adaptable to modern road traffic. Of course, the earliest red and green traffic lights in Shenyang at the time