Advanced LED warning system for rural intersections : phase 2 (ALERT-2) : final report.

Details

• Creators:
  Kwon, Taek M. ; Ismail, Husam
• Corporate Creators:
  University of Minnesota, Duluth. Department of Electrical Engineering
• Corporate Contributors:
  Minnesota. Dept. of Transportation. Research Services & Library
• Subject/TRT Terms:
  • Warning signs
  • Light emitting diodes
  • Rural areas
  • Intersections
  • Intersection conflict warning
  • LED blinker signs
  • advance warning
• Publication/ Report Number:
  MN/RC 2014-10
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Minnesota
• Edition:
  Final report
• Corporate Publisher:
  Minnesota. Dept. of Transportation. Research Services & Library
• Abstract:
  This report presents findings of the second phase of the Advanced LED Warning System for Rural ; Intersections (ALERT) project. Since it is the next generation of the same system, the second phase ; system is referred to as the ALERT-2 system while the first system is referred to as the ALERT-1 system. ; The ALERT systems demand use of four basic Intelligent Transportation Systems (ITS) technologies: ; LED-based signs, renewable energy, non-intrusive sensors, and wireless communication. Use of these ; four basic technologies remained the same for both phases of the system. In the first phase, the data ; showed that the ALERT-1 system reduced vehicle speeds on the main approach, increased STOP wait ; time on minor approaches, and eliminated roll-throughs for vehicles on minor approaches when a conflict ; existed in the intersection. However, when no conflict exists in the intersection, an increase in rollthroughs ; for vehicles on the minor approaches was observed. The ALERT-2 system was redesigned to ; mitigate this increased roll-throughs. With respect to technological advances, the ALERT-2 system ; improves many aspects of the basic technologies, providing higher system reliability, easier installation ; and maintainability, and better self-sustainability through redesign of the renewable energy application. ; To assess the driver behaviors at the test site, 13 moths worth of video data and a survey of local residents ; were collected. This report describes the system development, implementation, and analysis of the video ; and survey data.
  More +
• Format:
  PDF
• Funding:
  CTS Project # 2012027 ; (C) 99008 (WO) 25
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32163/dot_32163_DS1.pdf
• File Type:
  [PDF - 6.52 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e1c398a4145677d01fcb0d4dceafb98ded4dbc100f9f4f0cf4a66449c13d1e37