成都市交通网络通达性变化监测分析

Monitoring Analysis of Traffic Network Accessibility in Chengdu

成都市作为西部重要中心城市和综合交通枢纽,是国家"一带一路"和长江经济带发展战略的重要节点。通过构建交通网络发展空间格局变化监测模型,利用现势性强、精细化程度高的地理国情普查及监测成果,开展成都市交通网络通达性变化监测分析。结果显示成都市"双核共兴"的交通网络空间结构和布局正在形成、交通网络通达性正在由中心城区向外扩张;通过空间化、定量化地展示成都市交通基础设施现状及变化,可为区域发展规划的实施提供地理信息支撑服务。

As an important central city and an integrated transportation hub in West China,Chengdu is a significant node in"the Belt and Road"and"Yangtze River Economic Belt"development strategy.This article has built a monitoring model to research the change of traffic network accessibility in Chengdu to analyze the current problems in the traffic network.Besides,the highprecision data of NationalGeographical Census has been used in the test.The result shows that“the dual core cooperative”structure is taking shape,and the traffic network accessibility is expanding from the center of the city.This article demonstrates the current situation and changes of transportation infrastructure in Chengdu spatially and quantitatively,which can provide the geographic information services for the regional development planning.