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Title:

Field Experiments on Bluetooth-Based Travel Time Data Collection

Accession Number:

01152556

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Recently, a new Bluetooth-based travel time data collection approach has been gaining momentum in the transportation research community. This approach relies on identifying and matching the median access control (MAC) address of each Bluetooth device carried by bypassing vehicles for travel time data collection. Although there have been several studies documenting such data collection techniques, little research has been done regarding the inherent error rate of these devices. Furthermore, the use of multiple devices in tandem to improve results has not been fully investigated. This paper compares Bluetooth MAC address-based travel-time sensors developed by the authors with standard automatic license plate recognition (ALPR) devices commonly used for travel time data collection. Two types of antennae, omni-directional and directional, were tested to determine the effects of antenna selection on travel time data collection. Omni-directional sensors were found to have a larger detection zone than the directional sensors and are subject to more noise and bigger spatial errors, as a vehicle may be detected anywhere within the zone. Meanwhile, a larger detection zone also corresponds to a bigger sample size. Our test results indicate that although the Bluetooth sensors tended to be biased towards slower vehicles, the travel time measurements obtained were representative of the ground truth travel-time data measured by the ALPRs. There is great potential to apply this approach for cost-effective travel time data collection.

Monograph Accession #:

01147878

Report/Paper Numbers:

10-3134

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Malinovskiy, Yegor
Wu, Yao-Jan
Wang, Yinhai
Lee, Un Kun

Pagination:

17p

Publication Date:

2010

Conference:

Transportation Research Board 89th Annual Meeting

Location: Washington DC, United States
Date: 2010-1-10 to 2010-1-14
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures (11) ; References (14) ; Tables (1)

Subject Areas:

Data and Information Technology; Highways; I71: Traffic Theory

Source Data:

Transportation Research Board Annual Meeting 2010 Paper #10-3134

Files:

BTRIS, TRIS, TRB

Created Date:

Jan 25 2010 11:33AM