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作为河南省区域联系的快速通道,高速公路网络对河南省国民经济与社会发展起着至关重要的作用。通过选取通达指数、伸展指数、趋中指数等指标,以河南省18个中心城市的最短路径矩阵为基础,对河南省区域高速公路网络的发育程度进行了定量评价。结果显示,河南省高速公路网络发育程度在空间格局上呈现明显的“核心—外围”模式,通达指数最高的城市集中在中心城市郑州周围,较低的城市分布在外围地区;趋中指数排序与通达指数排序相吻合;河南省边缘地区城市的通达性需要提高,区域高速公路网络需要进一步完善。
As a fast channel for the regional connection in Henan Province, the expressway network plays a crucial role in the national economy and social development in Henan Province. Through the selection of the index of accessibility index, extension index and trend index, based on the shortest path matrix of 18 central cities in Henan Province, this paper quantitatively evaluated the development degree of the expressway network in Henan Province. The results show that the network development of expressways in Henan Province shows a distinct “core-periphery” pattern in the spatial pattern. The cities with the highest accessibility index are concentrated in the central city of Zhengzhou and the lower cities in the periphery. The trend index The rankings are in line with the ranking index; the accessibility of cities in the marginal areas of Henan Province needs to be improved, and the regional expressway network needs to be further improved.