Washington Demonstration Project: LED Lane Delineation and High Visibility Barrier Delineation for I-90 through Snoqualmie Pass in King and Kittitas Counties, WA

As a part of the Highways for LIFE (HfL) initiative, the Federal Highway Administration (FHWA) provided an approximately $180,000 grant to the Washington State Department of Transportation (WSDOT) to improve pavement visibility along I-90 through Snoqualmie Pass in King and Kittitas Counties. The key innovations on this project included the installation of light-emitting diode (LED) lane delineators and high-visibility barrier delineators. Although these delineators have been used in other States (e.g., Oregon, New York, California, and Colorado) as well as for small projects in the State of Washington, this is WSDOT’s first pilot project that utilizes them on a large scale. WSDOT plans to monitor this pilot program for the next 3 years to determine if the LED lights are effective. Maintaining delineation for I-90 in the Snoqualmie Pass vicinity has been a challenge for WSDOT, and it is anticipated that the new LED lights installed for this project will provide more durable and reliable delineation, giving drivers a more positive delineation especially at night and during severe weather conditions.

• Record URL:
  http://www.fhwa.dot.gov/hfl/summary/pdf_2/Washington-HfL-I-90-Snoqualmie-Pass_Final.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/54341
• Corporate Authors:

  Applied Research Associates, Incorporated

  100 Trade Centre Drive, Suite 200
  Champaign, IL  United States  61820

  Federal Highway Administration

  Office of Infrastructure
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Lee, Hyung
• Publication Date: 2015-7

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Technical Brief
• Features: Appendices; Figures; Maps; Photos; Tables;
• Pagination: 26p

Subject/Index Terms

• TRT Terms: Barriers (Roads); Demonstration projects; Highway delineators; Light emitting diodes; Night visibility; Technological innovations; Weather conditions
• Identifier Terms: Highways for LIFE
• Geographic Terms: King County (Washington); Kittitas County (Washington); Snoqualmie Pass (Washington)
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 01580465
• Record Type: Publication
• Files: NTL, TRIS, ATRI, USDOT
• Created Date: Nov 7 2015 5:58PM