Evaluation of Adaptive Traffic Signal Control: Case Study of Cobb County SCATS

In late 2004 the Cobb County Department of Transportation, in Cobb County, Georgia, U.S., conducted an adaptive signal control pilot study, implementing the Sydney Coordinated Adaptive Traffic System (SCATS) on 15 intersections along Paces Ferry Road, Cumberland Parkway, and Atlanta Road. This study presents the results of a before-and-after operational comparison of optimized time-of-day (i.e. before control) and SCATS (i.e. after control) traffic control system performance. The focus of this operational analysis is the typical operating performance during the weekday peak, weekday off-peak, and weekend travel periods. Travel time data were collected using GPS-equipped test vehicles and traditional intersection delay studies. The results showed that both systems provided good performance while neither the before time-of-day or after SCATS is clearly dominant, except on Cumberland Parkway, where SCATS control consistently provides equivalent or superior performance to that of the time-of-day control.

• Corporate Authors:

  ITS Japan

  Tokyo,   Japan 

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036

  ERTICO

  326 Avenue Louis
  Brussels,   Belgium  B-1050
• Authors:
  • Hunter, Michael
  • Wu, Seung Kook
  • Kim, Hoe Kyoung
• Conference:
  • 17th ITS World Congress
  • Location: Busan , Korea, South
  • Date: 2010-10-25 to 2010-10-29
• Publication Date: 2010

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 13p
• Monograph Title: 17th ITS World Congress, Busan, 2010: Proceedings

Subject/Index Terms

• TRT Terms: Adaptive control; Before and after studies; Evaluation; Global Positioning System; Performance measurement; Traffic signal control systems; Travel demand; Travel time
• Identifier Terms: SCATS (Computer program)
• Uncontrolled Terms: Adaptive traffic control
• Geographic Terms: Cobb County (Georgia)
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01361700
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 31 2012 7:22AM