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Title:

Geo-Spatial Analysis of Bluetooth Signal Reception and Its Implications on Arterial Travel Time Estimation

Accession Number:

01590595

Record Type:

Component

Abstract:

Bluetooth technology enables relatively precise and inexpensive way to collect roadway mobility performance measures. Despite being inexpensive, the accuracy of Bluetooth-based travel time collection depends on various factors including the in-vehicle position of Bluetooth device, speed of a vehicle, configuration of antennae, environmental factors, location of the Bluetooth MAC address reader, and its surroundings affect Bluetooth signal reception. All these factors can significantly influence the Bluetooth detection range. Studies have been conducted to test the accuracy of Bluetooth-based travel time collection with respect to those factors. However, only a few relevant studies focus on geospatial characteristics of Bluetooth signal reception. With homemade Class I Bluetooth sensors covering theoretically up to 300-ft, this paper attempts geospatial analysis of the Bluetooth signal reception and its impact on travel time estimation using experimental work conducted in the field. Comprehensive field experiments are conducted with 15 test vehicles with GPS-enabled Bluetooth-logger to detect the position information. Experiment results discover that the average detection range of Class-I Bluetooth is approximately 627-ft, yielding 1200-ft or longer detection range with less than 10% of probability. Yet the impact of detection range variability on travel time estimation caused by Bluetooth appears insignificant, resulting in 3.4% relative difference in average travel time compared to GPS-based travel time.

Supplemental Notes:

This paper was sponsored by TRB committee ABJ30 Standing Committee on Urban Transportation Data and Information Systems.

Monograph Accession #:

01584066

Report/Paper Numbers:

16-5320

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Pathak, Chaitanya N
Lee, Joyoung
Kim, Kitae
Dimitrijevic, Branislav
Spasovic, Lazar
Reif, John A

Pagination:

17p

Publication Date:

2016

Conference:

Transportation Research Board 95th Annual Meeting

Location: Washington DC, United States
Date: 2016-1-10 to 2016-1-14
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Uncontrolled Terms:

Signal detection

Subject Areas:

Data and Information Technology; Highways; I72: Traffic and Transport Planning

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-5320

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 6:19PM