the domestic refuse received safe treatment and disposal. On the other hand, the number of the autobus and trolley bus reached 13,000 and the total length of rail transportation increased to 54 kilometers. 2001年城市污水处理率达到42%,生活垃圾无害化处理能力达到清运量的85%,公共电汽车发展到1.3万辆,城市轨道交通运行线路达到54公里。