近年来，随着交通流量的日益增大，在城市道路上为了缓和行人过马路时车辆与行人争抢道路这一矛盾，在一些行人过马路比较集中的路段如学校、商场等门口的人行横道上加装了人行横道信号灯。

本系统采用单片机AT89C51为核心器件来设计开发交通灯控制器，设计开发人行横道交通灯系统，使系统实用性更强、操作更为简单。

　　1.在人流量不很多的时候，黄色信号灯以1s闪烁，提醒车辆慢行通过，行人确保安全下通过。

　　2.在放学、下班、节假日人流量高峰期，按下信号灯的控制按钮，交通灯信号系统时序工作。-In recent years, with the increasing traffic flow, on the road in the city to ease pedestrian crossing the road when vehicles and pedestrians compete for this contradiction, in a number of pedestrians crossing the road sections are concentrated, such as schools, shopping malls, etc. on the front of the crosswalk installation of a crosswalk signal.

The system uses the microcontroller AT89C51 as the core design and development of devices to control traffic lights, traffic lights crosswalk system design and development, to make the system more practical, easier operation.

1 the flow of people without a lot of time, the yellow lights flashing to 1s, to remind the vehicle slowly passed through the pedestrians to ensure safety.

2 in school, work, holidays, peak flow of people, press the control button lights, traffic light signal system timing work.