There are many technologies for counting and measuring traffic, such as pneumatic tube, IR sensor, Inductive loop, Ultrasonic wave, video image processing and so on. However, many of these technologies are costly and inflexible to operate and some issues about authorization as well as access rights. Meanwhile, in recent years, the number of people using smartphones with internet connection is increasing. Therefore, taking advantage of it for purposes of traffic couniting and measurement is necessary. A low-cost and flexible system has been developed which utilizes an existing IOT device for traffic data collection from MAC address-based crowd data.
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