北京的交通管理日趋智能化、自动化比方说“闯红灯自动监测仪”，据说每月都抓住好几百个］司红灯者。但是小道口的交通与现代化似乎一点不沾边这些道口的交通几乎成了一种放任自流的状态。出我家门口走30米左右就是一个丁字路口路口上有红绿灯。按说有红绿灯装置行人的安全应该? Beijing’s traffic management has become more intelligent and automated. For example, “Automated Traffic Light Monitor” is said to catch hundreds of Red Crescent lights every month. However, the traffic at the trail and the modernization seem a little non-detached. The traffic at these crossing has almost become a state of laissez-faire. About 30 meters away from my door is a T-junction intersection with traffic lights. According to the traffic light pedestrian security should be?