RESEARCH TARGETS FREEWAY CONGESTION : ADVANCE WARNING SYSTEMS CONSIDERED

Texas Transportation Institute (TTI) researchers are studying devices to provide advance warning to motorists of unexpected delays on freeways. With queues stretching to 800 feet in just 10 seconds, drivers can be taken by surprise, which can lead to accidents and irritation over sudden stop-and-go conditions. They are looking at recurrent congestion at freeway exist ramps and connectors as well as work zones. They've identified about 50 locations in the Dallas-Ft. Worth Metroplex where the morning drive experiences a sudden dip in speed. Previous research has found that one second more warning, rear-end crashes drill about 90% and go down about 60% with half a second more time to react. The researchers are evaluating two warning devices and expect to have results in fall 2004.

• Record URL:
  http://tti.tamu.edu/documents/researcher/ttr-v39-n2.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1587330
• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011
• Authors:
  • Wiles, P
• Publication Date: 2003

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 4
• Serial:
  • Texas Transportation Researcher
  • Volume: 39
  • Issue Number: 2
  • Publisher: Texas Transportation Institute
  • ISSN: 0040-4748

Subject/Index Terms

• TRT Terms: Traffic congestion; Warning systems
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00962276
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: Sep 2 2003 12:00AM