Abstract
Multiple applications of travel time data collection based on the reading of time-stamped media access control (MAC) addresses from Bluetooth-enabled devices have been reported in the literature, and commercial data collection units (DCUs) have been developed and deployed. One characteristic of Bluetooth-based travel time data obtained for travel time sample-generation purposes is that a MAC address is typically read multiple times as a vehicle containing the Bluetooth device travels within the length of road covered by the DCU’s antenna. Such data records of the same MAC address will have different timestamps and received signal strength levels. If the DCUs are installed at arterial intersections to collect travel time samples, this characteristic of MAC address data collection may also be used as the basis for estimating intersection performance. In this research, the use of the time/duration information present in the MAC address data to estimate intersection performance measures is investigated. Estimates of average control delay and approach delay are computed for a real intersection and are shown to track well with intersection-to-intersection travel times.
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Acknowledgments
This research was funded by the Oregon Department of Transportation Research (ODOT) Section and the Oregon Transportation Research and Education Consortium. We would like to thank Galen McGill, Barnie Jones, and June Ross of ODOT for their assistance and support of this research.
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Published In
Journal of Transportation Engineering
Volume 142 • Issue 5 • May 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jul 23, 2015
Accepted: Oct 30, 2015
Published online: Jan 27, 2016
Published in print: May 1, 2016
Discussion open until: Jun 27, 2016
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