ENHANCEMENTS OF REMOTE SENSING FOR VEHICLE EMISSIONS IN TUNNELS

The University of Denver in cooperation with the Desert Research Institute, EPA, and General Motors Corporation have successfully adapted the University of Denver's remote sensing system for vehicle exhaust to the measurement of vehicle emissions in a tunnel environment. Two studies conducted at the Fort McHenry Tunnel in Baltimore, MD and the Tuscarora Mountain Tunnel located west of Harrisburg, PA on the Pennsylvania Turnpike are described. The difficulties associated with remote sensing in a tunnel environment have led to a number of improvements in the remote sensing technology. Due to logistics and restrictions on placement of equipment in the Fort McHenry tunnel, a prototype periscope system was employed to optimize the height of the remote sensor's infrared beam path relative to vehicle exhaust plumes. At the Tuscarora Tunnel, first-time measurements of dual lane traffic were conducted using a single source and detector and two cameras for vehicle identification. This precluded the normal practice of directing traffic into a single lane which can alter normal drivng patterns.

• Supplemental Notes:
  • Pub. in Jnl. of Air and Waste Management Association, v44 pp169-175 Feb 94. Prepared in cooperation with Nevada Univ. System, Reno. Desert Research Inst. and ManTech Environmental Technology, Inc., Research Triangle Park, NC.
• Corporate Authors:

  Denver University

  Department of Chemistry, University Park
  Denver, CO  United States  80208-0183
• Authors:
  • Bishop, G A
  • Zhang, Y
  • McLaren, S E
  • GUENTHER, P L
  • BEATON, S P
• Conference:
  • Alcohol Fuels: the Road To Commercialization; International Symposium of Alcohol Fuels (10th)
  • Location: Broadmoor Hotel, Colorado Springs, CO
  • Date: 1993-11-7 to 1993-11-10
• Publication Date: 1994

Language

• English

Media Info

• Pagination: 9p

Subject/Index Terms

• TRT Terms: Emissions testing; Exhaust gases; Highway operations; Periscopes; Reliability; Remote sensing; Tests; Vehicular tunnels
• Old TRIS Terms: Systems reliability; Tunnel traffic operations
• Subject Areas: Bridges and other structures; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00678007
• Record Type: Publication
• Files: TRIS
• Created Date: May 19 1995 12:00AM