摘要苏中是江苏省中部地区的简称，地处江苏省中部，是长江三角洲地区重要的经济增长极和中国经济发展最快的地区之一。研究该区域的交通网络可达性能为经济的发展提供一些帮助。交通网络的评价方法有很多种，可达性被认为是有效、综合的评价指标，被广泛的应用在交通规划等领域。本文利用简单的以最短距离和最短时间为指标的方法对苏中地区的公路交通可达性进行度量。再结合专业知识，利用GIS技术为可达性的计算提供更加便捷、精确的工具。先使用ArcCatalog创建网络数据集，再利用ArcGIS网络分析模块的功能，根据苏中地区的公路交通状况，建立网络模块，使用最短距离和最短时间的方法，对苏中地区的公路交通网络可达性和空间格局进行计算分析；得出苏中地区的交通网络可达性呈现同心环状分布，即泰州市地区的公路交通可达性较好；并且可达性由中心向外呈现减弱趋势，即扬州市、南通市地区的公路交通可达性相对较差。其中受苏中地区多条高速公路的影响，外围可达性向海安县、江都市、如皋市方向突出。74643

毕业论文关键词：可达性  公路交通网络  GIS  苏中地区

Road Transportation Network’s Accssibility In Middle Of Jiangsu Based On GIS

Abstract Su zhong is referred to as the central region of Jiangsu Province, located in central Jiangsu Province, it is one of the important economic growth pole in the Yangtze River Delta region and the fastest growing economy of China。 Research in the area of traffic network of performance will be provided some help for the development of the economy。 There are many evaluation methods of network traffic, accessibility is considered to be effective, comprehensive evaluation, has been widely applied in the field of transportation planning。 In this paper, the simple and the shortest distance in the shortest time as an index approach to the Middle of Jiangsu in the road traffic accessibility to measure。 Combined with the expertise, use GIS technology to provide  accurate and convenient tool to the calculation of accessibility To create a network dataset using ArcCatalog, re-use of ArcGIS Network Analysis Module, according to the road traffic situation in the area of the Middle of Jiangsu, the establishment of a network module, using the shortest distance and the most short-term approach to road transportation network in the region up to the Soviet Union and to calculate and analyze spatial pattern; draw the Soviet Union in  the transport network accessibility presents concentric annular distribution that better road transportation accessibility Taizhou City area; and accessibility from the center outward showing signs of abating, That Yangzhou, Nantong Highway traffic areas relatively poor accessibility。 Which is affected by more than middle area highway, peripheral accessibility to Haian , Jiangdu, Rugao direction。

Key Words:  accessibility   road transport network   GIS   Middle of Jiangsu

目  录

摘  要 I

Abstract II

目  录 III

绪论 1

1。研究区概况及数据来源 1

1。1研究区概况 1

1。2数据来源 2

2。研究方法 3

3。数据处理 4

3。1创建要素数据集 4

3。2创建网络数据集 4

3。3获得、整理数据