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Title:

Bluetooth Travel Time/Speed Data Analysis for Houston-Galveston Regional Transportation Study

Accession Number:

01593534

Record Type:

Component

Abstract:

This research collected and analyzed Bluetooth travel time and speed data for the Houston–Galveston regional transportation study. The Bluetooth data collection covered 70 arterial routes totaling more than 1800 directional miles in the regional urban network. The research conducted sample size analysis to determine a proper width of time window for data screening and proposed a method of confidence level analysis to evaluate the quality of data for each study site. It was found that screening window of 15 minutes or 30 minutes was too short due to the large variation in the sampled data; by reporting the data by hour and by peak or off peak period, more than 95 percent of study sites had a high confidence level in the data. The research then resorted to the geographic information system to develop data visualization tools for congestion management. The speed map color-coded level of service for arterials and absolute speed values for freeways, which directly identified congested segments for different times of day. The shortest route map provided comparison between typical freeway routes and the shortest routes by the actual travel time. The travel time contour map showed the accessibility to an area within certain amount of time. With the Bluetooth technique added in to the regional traffic monitoring system, the data analysis and visualization methods proposed in this study will be incorporated into future congestion management process.

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:

16-3553

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Zhou, Hongmin
Benz, Robert J
Voigt, Anthony
Mao, Andrew C

Pagination:

20p

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; Maps; References; Tables

Geographic Terms:

Houston-Galveston region

Subject Areas:

Highways; Planning and Forecasting

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-3553

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 5:33PM