Use of Travel Time, Travel Time Reliability, and Winter Condition Index Information for Improved Operation of Rural Interstates
Using intelligent transportation systems to help report traveling conditions has been reserved for urban areas. The goal of this research was to help develop a new methodology for incorporating travel times calculated from intelligent transportation system (ITS) technology into Wyoming’s road and weather condition reporting system. Bluetooth sensors and speed sensors were used to measure travel times on I-80 between Cheyenne and Laramie, as well as WY-28 between Farson and Lander in Wyoming. From previous research, the distribution of travel times on I-80 show two distinct modes. Travel times from the WY-28 corridor were then calculated to determine if this trend was common with other rural highways. The next step in this research was to determine the best way to measure travel times on a rural corridor. Bluetooth sensor travel time data were compared to speed sensor travel time data. Then a travel time index was created for I- 80 from one year of speed sensor data. This travel time index was then modeled with weather variables downloaded from road weather information system (RWIS) stations. Finally, a methodology for implementing and evaluating this new travel time reporting procedure was developed. The results of this research will help to improve the current condition reporting system by incorporating both physical conditions (slick in spots, high wind speed, etc.) with travel times. This will help all types of travelers to more accurately quantify the severity of traveling conditions.
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Supplemental Notes:
- This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
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Corporate Authors:
University of Wyoming, Laramie
Department of Civil and Architectural Engineering
1000 East University Avenue
Laramie, WY United States 82071 North Dakota State University
Fargo, ND United States 58108Research and Innovative Technology Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Milliken, Eric
- Young, Rhonda
- Publication Date: 2015-12
Language
- English
Media Info
- Media Type: Digital/other
- Features: Appendices; Figures; Maps; References; Tables;
- Pagination: 92p
Subject/Index Terms
- TRT Terms: Bluetooth technology; Implementation; Intelligent transportation systems; Road weather information systems; Rural highways; Sensors; Statistical analysis; Travel time
- Geographic Terms: Wyoming
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; I70: Traffic and Transport;
Filing Info
- Accession Number: 01590470
- Record Type: Publication
- Report/Paper Numbers: MPC 15-295
- Files: UTC, NTL, TRIS, RITA, ATRI, USDOT
- Created Date: Feb 18 2016 9:26AM