帮我翻译一下摘要，谢谢！！

Analysis the present condition of modern control and management problem of the city transportation, combine city country transportation of actual the circumstance elaborated a transportation light control system of work principle, give a kind of simple practical city transportation light control system of hardware electric circuit design project.

Analysis of the modern urban traffic control and management of the status quo, urban and rural traffic light of the actual situation expounded the traffic light control system in principle, is a simple and practical urban traffic light control system hardware circuit design.