Traffic Probe Sample Size Experiment Based on Mobile Phone Handover Information

Probe sample size is analyzed using real mobile phone handover information in terms of variation range, peak hours, average during working hours and so on. Two roads with different traffic background and characteristics, a freeway and a main road, are selected for the field test. The experiment results show that mobile sample size ranges from several to over one hundred. What is more, this paper explains the influence factors on mobile sample size, such as traffic flow, cell phone calling behavior and handover link length. It indicates that the more traffic flow, the longer call duration and the shorter handover link length, the larger the mobile probe sample size is.