我国大城市交通发展已经出现诸多问题,其发展方向已经大概确定。中等城市普遍经济不太发达,由于各地历史原因以及地理气候等因素,交通问题还不是很凸现。针对大城市发展的前车之鉴,应对我国中等城市的绿色交通重新界定,研究其预防方案。文中的中等城市,我们界定为建成区面积100平方公里,市区人口100万人以上的城市。 Many problems have appeared in the traffic development of the big cities in our country and their development direction has been roughly determined. Medium-sized cities generally underdeveloped economy, due to historical reasons and geography and climate and other factors, traffic problems are not very prominent. In light of the development of big cities, we should redefine the green transportation of medium-sized cities in our country and study their prevention plans. In the text of the medium-sized cities, we define the built-up area of ​​100 square kilometers, urban population of more than 1000000 people.