The traffic lights manufacturers about traffic lights development roa

The traffic lights manufacturers about traffic lights development roadThe origin of the traffic lights can be traced back to the early years of the nineteenth Century. Then, in the British city of York, a red woman said "married", a green woman is unmarried". At that time, Parliament in London before the carriage rolled frequent accidents. Inspired by the red and green installed, British mechanical Shid Hart in 1868 design of red, green and white gas traffic signal lamp by a handheld long rod of the police by affecting the belt to convert light color. But a policeman because of red light suddenly die explosion, in view of this situation, the British government immediately stop the use of this kind of signal lamp, but this only 23 days of life signal but in light of the passion throughout Europe and the whole world development of traffic signal lamp, shortly after, all kinds of traffic signal lamp will be springing up like the

development

In 1914, Cleveland, the first to restore the traffic lights in the streets, followed by New York, Chicago city also began to appear. When the traffic lights from the electrical and gas evolution, the modern traffic lights have not much difference, but the signal itself, Americans also improved the signal control system.

in China

The traffic lights manufacturers on the British concession China the first traffic light in Shanghai. Data shows, early in 1923, Shanghai public concession began at the crossroads of part use mechanical device indicates the vehicle stop and go, this year on April 13, Nanjing Road, two important crossroads, the first installation traffic light signal device.

Traffic signal lamp in China really rise and popularity of or later in 1979, was just the beginning of the reform and opening up, people can not wait to foreign exchange, the first traffic light on March 20, 1979 in large quantities to enter the domestic, on the same day, Beijing Beixinqiao, Dongdan, Chongwenmen, flower and other nine relatively busy intersection in the installation on the so-called "traffic director", began to try to use red light to direct traffic.

The number of vehicles entering the 90's Chinese increase rapidly, traffic facilities update speed is amazing, most city traffic lights have been placed.

Successful development of lower energy consumption in the years after the LED signal lamp, incandescent bulbs will exit this historical stage, since then has created a left turn to be turn lights, countdown traffic lights, can transform the direction of the arrow lights and flashing warning lights. Now the traffic light, is one of the most It is quite common for traffic facilities.

The above information by traffic lights manufacturers of small finishing stick