湛茂阳城市带县域综合交通可达性研究

在借鉴已有研究成果的基础上,以湛茂阳城市带18个县域单位为研究对象,通过利用综合交通可达性指数及交通区位优势度、县域内交通连通度和对外通达性三个分指数,全面分析湛江国际机场搬迁前后湛茂阳城市带各县级行政区的交通可达性空间格局特征。结果表明:湛江国际机场搬迁后,湛茂阳城市带综合交通可达性得到明显提升,较高可达性市县区由7个增加至10个;表现出更强的空间集聚性和空间自相关,并且形成以湛江各区、茂南区和江城区为中心,沿海连续形成可达性高值带状片区。对湛茂阳城市带县域尺度综合交通可达性进行研究能够为区域协调均衡发展提供更好的理论和实践指导。

Study on the Accessibility of County Comprehensive Transportation in Zhanjiang-Maoming-Yangjiang City Belt

By constructing comprehensive traffic accessibility index and three subindices(traffic location advantage,internal transport connectivity and external traffic accessibility)based on the existing research achievements,this paper takes 18 county units of Zhanjiang-Maoming-Yangjiang city belt as the objects,comprehensively analyzes the spatial pattern characteristics of traffic accessibility of all county units within the urban belt before and after the relocation of Zhanjiang International Airport.The result shows that the comprehensive traffic accessibility of Zhanjiang-Maoming-Yangjiang urban belt has been significantly improved after the relocation of Zhanjiang International Airport,and the number of high accessibility county units increased from 7 to 10;It forms a high-valued accessibility belt area centered on Zhanjiang central city,Maonan and Jiangcheng,and shows stronger spatial agglomeration and spatial autocorrelation.This paper can provide better theoretical and practical guidance for the regional coordinated and balanced development.