详情

原文传递 Highway Travel Time Estimation with Captured In-vehicle Wi-Fi MAC Addresses: Mechanism, Challenges, Solutions and Applications.

题名：	Highway Travel Time Estimation with Captured In-vehicle Wi-Fi MAC Addresses: Mechanism, Challenges, Solutions and Applications.
作者：	Li, P.; Mirchandani, P. B.; Zhang, L.; Zhang, L.
关键词：	Traffic performance, Travel time estimation, Wi-fi, Bluetooth
摘要：	Passive sensing technologies have emerged to supplement the traffic performance measurement recently. One successful is the travel time estimation based on in-vehicle Bluetooth Media Access Control (MAC) address capturing and matching at different locations. In this paper, we present a novel approach to measuring the traffic performance on highways based on in-vehicle Wi-Fi MAC address capturing. While this novel approach shares similarities with the Bluetooth-based solution, the Wi-Fi sensors can reduce the measuring errors by up to 90% and collect 300% more valid travel time samples than the Bluetooth sensors. We also design algorithms to screen outliers and estimate dynamic travel times on freeways and arterials respectively. At last, experiments in the field are conducted to evaluate the Wi-Fi sensing areas under different antenna configurations and cross compare the travel time estimation with Wi-Fi sensors and Bluetooth sensors. The findings include the Wi-Fi sensors considerably outperform the Bluetooth sensors in capturing MAC address of the passing vehicles, especially in low-traffic areas.
报告类型：	科技报告