Division and Characteristic Analysis of Driving Isochrone Maps in Chengdu Urban Center Based on Traffic Big Data
In order to improve transportation,this paper analyzes the expression accuracy and visualization level of the transportation accessibility of the central urban area,and practice the application of the big data of traffic travel in the process of territorial spatial planning and city physical examination and evaluation.Taking Chengdu as the research object,this paper obtains the real-time driving traffic data at 14:00 and 18:00 on weekdays and weekends on Tencent Map Open Platform through Python,and generates the Isochrone Maps of central urban area in four periods.Through this study,it can be seen that the 60-minute isochronous circle with the Chengdu Municipal People's Government as the starting point can cover almost the entire area of the central urban area,and the 60-minute～90-minute isochronous circle can cover nearly half of the city area of Chengdu.The traffic conditions in the south direction of Chengdu's central urban area are the best,most areas in the south of the central urban area is within a 60-minute isochronous circle,and the northbound traffic is slightly weaker;According to the results of the isochronous circle division in four different periods,the central urban area of Chengdu has the best traffic accessibility at 14:00(off peak)on weekdays,followed by 18:00 on rest days,and the lowest at 18:00(evening peak)on weekdays.
isochrone mapstraffic big datatraffic accessibilityArcGIS
万方数据
维普
