After field survey, team members found, in addition to a small amount of several intersections, is very different from most sidewalk traffic light intersection point, a green light time throughout, shorter than red light moment, some crossing the green light time and even less than a third of the red light time. For example, general avenue and alternates too west road intersection, the central road and xuanwu gate with intersection, etc. One of the biggest green light time is different from red light moment was hanzhongmen avenue and west inner ring with intersection, green light time is less than one over ten of the total time traffic lights.

Interestingly, standing at the crossroads when calculating the traffic light time, "Chinese" crossing the street again and again broke into students' field of vision through a red light. Many crossroads in nanjing, the number of red light are 15 minutes more than 80 people, there are seven road for more than 100 people. Most is in peaceful north road and zhujiang road intersection, with 15 minutes running a red light and the number of 354. These data completely surprised the players, the players Xu Zhengfeng said: "the number of red light is far more than our fantasies, and in the case of a traffic police on duty."

When crossing research, there are students had witnessed a traffic accident caused reasons through a red light. In changjiang road and peace road intersection, with a electric vehicles due to the red light, another car crashed into a normal passing vehicles, both electric car owners are injured.