高铁时代下江西省可达性空间格局及其演化

Accessible Spatial Framework and Evolution of Jiangxi in High-speed Railway Era

引入可达性概念,以2010年和2014年作为两个时间断面,选取江西省45个市县作为城镇节点,统计了45个节点相互之间列车到达的平均旅行时间,并利用Arc Gis空间分析技术,呈现出江西省目前的空间格局,指出目前江西大体上呈现出以南昌为中心向外围区域递减的"核心—外围"模式,沿线城市的加权平均旅行时间整体压缩,时空收敛效果明显,赣中赣北地区城市可达性最强,赣西赣东地区城市可达性变化率最大,赣南地区可达性仍然较弱。

In this paper, adopting the concept of accessibility and taking the data of 2010 and 2014, we selected the 45 cities and towns of Jiangxi as the nodes to deduce the average train arrival time. Through the Arc Gis spatial analysis technology, we obtained the current spatial framework of Jiangxi, which pointed out that Nanchang was generally the center, the weighted average train arrival time along the railway was compressed, the accessibility was high in central and northern Jiangxi, the change rate of accessibility was high in western and eastern Jiangxi,while the accessibility was low in southern Jiangxi.