Abstract:

Nanjing is a wellknown historic and cultural city at the lower reaches of the Yangtze River.Since the beginning of fortification in 472 B C,it has 2 482 years’ history.In the process of Nanjing city’s development,due to natural,political,economic and other comprehensive reasons,it always built the enceinte by use of a basin which is opening to the northwest at the south bank of the Yangtze River,but northward riverspan development was very slow all the time during the historical period.On the basis of field investigations and historical materials’ analysis,this paper reconstructed the historical process of Nanjing’s riverspan development and made out four development periods.They were the stage of riverfront development,the embryonic stage,the incipient stage,the overall and accelerating stage of riverspan development.Based on the causes and mechanics of the city’s riverspan development,it analyzed and demonstrated the feasibility of overall and accelerating riverspan development at present.According to experience learned from domestic and oversea cities’ riverspan development,it proposed main strategies for Nanjing’s overall and accelerating riverspan development:(1) to speed up building proper riverspan traffic pattern;(2) to coordinate the interdependence and independence between new urban area at the north bank and Nanjing city’s integrated functions;(3) to balance the distribution of spatial structure as well as highlight of the key points of development and push forward the construction of new urban area at the north bank as well as protective transformation of the old towns;(4) to utilize the nontreepattern effect of largescale industrial projects sufficiently;(5) to implement proper functional zoning and comprehensive improvement of environment at the Yangtze River banks;(6) Provincial and municipal governments should provide longlasting policy support and perfect institutional and structural reforms