A network efficiency approach with application to land transport infrastructures
This paper evaluates the impact of the evolution of the transport network in Pearl River Delta(PRD)on network efficiency over the period 1988-2008.The network-based efficiency measures are considered as the relative ease of access in terms of cost weighted distance within the network based on raster data.The results indicate that spatial pattern of network efficiency is different from the “core-periphery patterns derived from general accessibility indicators.This implies that there are low network efficiency cities and high network efficiency cities in core and peripheral regions at the same time.In the first stage(1988-1998),the unevenness in network efficiency remained relatively high,and the spatial structure of network efficiency is characterized by “banding with its major corridor in the eastern side of the Pearl estuary.In the following decade,with transport network expansion,network efficiency is becoming increasingly evenly distributed; the spatial pattern of network efficiency has changed from an original north-south “corridor distribution to east-west “planar equilibrium distribution pattern.This transformation implies that the highway network has completed network building and network scale expansion preliminary stage.In order to meet the demand of future social-economic development,the PRD should attach importance to restructuring and optimizing the transport network structure,especially to the necessity of building an open and efficient integrated transport system.
transport network network efficiency spatiotemporal evolution Pearl River Delta (PRD)
Yang Jingsheng
Academic Committee of Urban Ecology Planning of Urban Planning Society in China
国际会议
廊坊
英文
1-24
2018-03-01（万方平台首次上网日期，不代表论文的发表时间）