Traffic volume information analysis for urban arteries using dynamic time warping distance
Jizhong Yang · Journal of Chang'an University · 2015
To explore the traffic operating characteristic of urban arteries with several intersections,the dynamic time warping distance(DTW)was adopted as the similarity index to analyze the arterial traffic volume information.The similarity measurement was composed of three parts:data preprocessing,calculation of the dynamic time warping distance and extraction of the traffic stream information.With the field observation data,the critical traffic stream which has good consistent volume information was identified by calculating the similarity index of the traffic volume information from different detectors in the artery.The transfer characteristic was also testified by comparing the traffic volume information from different detectors of the same traffic stream.It proved that this method can distinguish the critical and non-critical traffic stream in the artery automatically,and depict the attenuation characteristic during the information transmission process,which helps to determine the object and scope of the arterial traffic cooperative control.5figs,11 refs.