Implementation of Advance Warning of End of Green System (AWEGS): Implementation Report

The objective of this implementation project was to implement four Advance Warning of End of Green Systems (AWEGS) across Texas at intersections appropriate for the installation of AWEGS. After a survey across Texas, four sites were chosen in the Atlanta District, Pharr District, Odessa District, and San Antonio District. The AWEGS design plans were prepared for these four sites and submitted to the districts. These plans were prepared for an intersection with high-speed approaches having the required dilemma zone detection design. The Atlanta District implementation was typical of the earlier implementation and used the TS 2 TS 1 conversion panel. However, the remaining implementations were configured for using enhanced bus interface units (BIUs). AWEGS software was also modified to account for rail preemption as the site in Odessa District was being preempted by between 15 to 25 trains per day. Finally, the implementation in San Antonio District was redesigned to use radar detection for both dilemma zone and advance detection. AWEGS at the Atlanta, Pharr, and Odessa Districts have been implemented and an evaluation of the system showed that AWEGS was performing satisfactorily at all sites. TTI researchers are awaiting the San Antonio District to install the radar detectors to implement the system there.


  • English

Media Info

  • Media Type: Web
  • Edition: Technical Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 26p

Subject/Index Terms

Filing Info

  • Accession Number: 01140587
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/TX-08/5-5113-01-1, Report 5-5113-01-1
  • Contract Numbers: Project 5-5113-01
  • Created Date: Sep 24 2009 11:22AM