Evaluating the Ability of Global Positioning System Receivers to Measure a Real-World Operating Mode for Emissions Research

This paper evaluates the ability of Global Positioning System (GPS) receivers to determine accurately the second-by-second operating mode of a vehicle in the real-world transportation network. GPS offers the ability to obtain second-by-second velocity directly and to obtain acceleration data indirectly from a vehicle traveling in the real-world traffic network. Although GPS has been used successfully in travel behavior and route choice surveys, the uncertainty in accuracy of velocity and acceleration data obtained from the GPS warrants further investigation to gain a better understanding of the range and spatial distribution of vehicle emissions. In this study, data from two GPS receivers and a ScanTool were collected over five repetitions of a 65-mi route. The results indicate that GPS receivers perform as well as the ScanTool when measuring velocity. Furthermore, the GPS receivers determined the 1-s operating mode of the vehicle successfully when measured against the ScanTool. These results will aid in the future development of vehicle emissions models and allow for an analysis of real-world emissions based on real-world operating mode data.

• Record URL:
  • https://doi.org/10.3141/1941-06
• 
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Evaluating+the+Ability+of+Global+Positioning+System+Receivers+to+Measure+a+Real-World+Operating+Mode+for+Emissions+Research&author=E.+Jackson&author=L.+Aultman-Hall&author=B.+Holmen&author=J.+Du&publication_year=2005
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/030909416X
• Authors:
  • Jackson, Eric D
  • Aultman-Hall, Lisa
  • Holmen, Britt A
  • Du, Jianhe
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 43-50
• Monograph Title: Energy and Environmental Concerns 2005
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 1941
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accuracy; Data collection; Exhaust gases; Global Positioning System; Mechanical acceleration; Velocity
• Uncontrolled Terms: Emissions models; Real world data; Vehicle operating modes
• Subject Areas: Energy; Environment; Highways; Vehicles and Equipment; I15: Environment; I90: Vehicles;

Filing Info

• Accession Number: 01023822
• Record Type: Publication
• ISBN: 030909416X
• Files: TRIS, TRB, ATRI
• Created Date: May 11 2006 8:25AM