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穗港走廊通达性及其空间格局分析
引用本文:李平,曹小曙,徐旭.穗港走廊通达性及其空间格局分析[J].中山大学学报(自然科学版),2006,45(3):100-104.
作者姓名:李平  曹小曙  徐旭
作者单位:1. 中国科学院地理科学与资源研究所,北京100101
2. 中山大学地理科学与规划学院,广东,广州,510275
3. 温州大学建筑与土木工程学院,浙江,温州,325035
摘    要:以通达性为切入点,以G IS工具为技术手段,用最短时间距离以及加权平均出行时间两种指标,其中后者以人口数为其加权因子,根据区域之间的道路通车情况,建立网络模型,对广州至香港之间的廊道状区域的陆路交通网络通达性现状及其空间格局进行计算分析。分析得出,穗港走廊内部的陆路网络通达性呈现出同心环状态分布的空间格局,并且其通达性水平以环心为最优,逐渐往外层递减。把两种指标的计算结果换算成通达性系数,进行对比,发现利用人口数作为加权因子之后,走廊南部在整个网络的通达性地位得到了提升,但同时走廊北部的通达性地位却受到了削弱。

关 键 词:穗港走廊  通达性  空间格局  最短时间距离  加权平均出行时间  交通工程
文章编号:0529-6579(2006)03-0100-05
收稿时间:2005-07-22
修稿时间:2005-07-22

Research on Accessibility Spatial Patterns in Guangzhou-Hong Kong Corridor with Different Indices
LI Ping,CAO Xiao-shu,XU Xu.Research on Accessibility Spatial Patterns in Guangzhou-Hong Kong Corridor with Different Indices[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2006,45(3):100-104.
Authors:LI Ping  CAO Xiao-shu  XU Xu
Institution:1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101 ,China; 2. School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275 ,China; 3. College of Architecture and Civil Engineering, Wenzhou University, Wenzhou,China
Abstract:Research on accessibility is always focused in international transportation geography.The current spatial accessibility pattern in Guangzhou-Hong Kong Corridor is analysed with integrated GIS tools,using the shortest time distance index and the weighted average travel time index.The latter index uses population as its weighted factor.As a result,the accessibility shows a concentric circle spatial pattern,and the inner the better.The accessibility level goes worse from the center to the periphery.The results of this two indices are transformed into accessibility coefficients for comparison.The results show that the accessibility status of the south corridor is improved and the north one is weakened,if the population factor is taken into account.
Keywords:Guangzhou-Hong Kong Corridor(GHC)  accessibility  spatial patterns  the shortest time distance  weighted average travel time  transportation engineering
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