空间视角下的安徽省交通可达性研究

Research on traffic accessibility in Anhui province based on geographic data

交通可达可衡量起讫两点之间的便利程度,通常用耗时来进行度量。随着社会经济的不断发展,道路逐渐变得复杂与完善。为了衡量交通空间可达性,文章从国、省道的道路数据入手,以交通耗时、交通可达等指标进行定量分析,明晰安徽省空间可达的空间分布。仿真实验结果表明:2010—2020年,设区市的等时圈变化主要集中在长江的沿江区域,具体的通行时间明显有所减少;安徽省绝大部分区域都在马鞍山市6.0 h交通耗时辐射范围内;2010—2020年,马鞍山市与各个区县交通通达的能力逐渐增强。

Traffic accessibility is a measure of the convenience between the start and end points,usually measured by time.With the continuous development of social economy,the road has gradually become complex and perfect.In order to measure the spatial accessibility of traffic,this paper starts with the road data of national and provincial roads,and makes a quantitative analysis with traffic time-consuming,traffic accessibility and other indicators to clarify the spatial distribution of spatial accessibility in Anhui province.The simulation results show that from 2010 to 2020,the isochronal changes of cities divided into districts are mainly concentrated in the areas along the Yangtze River,and the specific travel time is significantly reduced;most areas of the province are within the radiation range of 6.0 h traffic time in Maanshan city;from 2010 to 2020,the traffic accessibility between Maanshan city and all districts and counties has gradually increased.