摘要
基于出租车和常规公交车浮动车数据,对上海市中心城区道路网络的交通时空特性进行了研究。引入覆盖强度和覆盖路段比例2个指标,分别表征浮动车在时间和空间上的分布差异。研究结果表明:内环内出租车的覆盖强度大于内环外的,内环内公交车的覆盖强度略小于内环外的;内环内、外出租车的覆盖路段比例均为60%,内环内公交车的覆盖路段比例比内环外的小5%;出租车在覆盖强度和覆盖比例上的稳定性优于公交车的;内环外出租车和公交车的平均速度均比内环内的高5km/h,出租车的平均速度比公交车的高5~10km/h。
Based on the floating car data（FCD） of taxi and conventional bus,aimed at the distribution characteristics of FCD in road network of the central urban area of Shanghai,two index named detecting intensity（DI） and detecting proportion（DP） are intro- duced to characterize the differences in the characteristics of time and space FCD. The study indicates that the DI of the taxi in the inside inner ring is greater than the outside inner ring, while the DI of the bus in the inside inner ring is slightly less than the outside inner ring.The DP of the taxi in both the inside inner ring and the outside inner ring is about 60%,but the DP of the bus in the inside inner ring is about 5% less than the outside inner ring.The stahility of DI and DP of the taxi is better than that of the bus. The average speeds of the taxi and bus in the outside inner ring are 5 km/h larger than those in the inside inner ring, the average speed of the taxi is 5-10 km/h larger than that of the bus.
出处
《交通科学与工程》
2017年第4期82-86,共5页
Journal of Transport Science and Engineering
基金
上海市科委科研计划项目(16DZ1203602)
关键词
浮动车数据
时空特性
覆盖强度
覆盖路段比例
floating car data
characteristics of time and space
detecting intensity
de- tecting proportion
