The Transportation Improvement Scheme of Liuhua District in Guangzhou City

Guangzhou is one of the most important cities in southern China and has made rapid progress in transport and traffic development over the past years. Many traffic problems, however, are also existing with large-scale urban transport construction and have been exerting great effects on people's normal lives. Liuhua, one of the districts in Guangzhou with lots of transport infrastructures spreading there without restraint, is the worst as far as traffic conditions are concerned in Guangzhou and municipal leaders have made up their minds to deal with those serious problems these two years. We were delegated by transport bureau of Guangzhou and responsible for the improvement scheme design early 1999. This paper firstly introduces the fundamental conditions in Liuhua and then proposes the key factors which have been obstructing the improvement of traffic conditions. The improvement scheme involving cross-intersection design, capacity analysis of signalized intersection and roundabout, traffic management infrastructures and public transit modification is then proposed based on traffic engineering analysis and principle. The design of improvement scheme takes advantage of system analysis methods and the results show their potential application in urban traffic engineering. Guangzhou has adopted the improvement scheme on May 1999.