T3 Webinar Overview

Go for the Green: Addressing Technical and Inter-Jurisdictional Challenges of Arterial Traffic Management

View Webinar: link to this webinar's archive materials

Originally presented under the title: Arterial Traffic Signal Timing: Addressing Technical and Inter-Jurisdictional Challenges

Date:   September 11, 2007
Time:  2:30 PM – 4:00 PM ET
Cost:  All T3 webinars are free of charge
PDH:  1.5   View PDH Policy

T3 Webinars are brought to you by the ITS Professional Capacity Building Program (ITS PCB) at the U.S. Department of Transportation's (USDOT) ITS Joint Program Office, Research and Innovative Technology Administration (RITA). Reference in this webinar to any specific commercial products, processes, or services, or the use of any trade, firm or corporation name is for the information and convenience of the public, and does not constitute endorsement, recommendation, or favoring by U.S. Department of Transportation.


The National Transportation Operations Coalition (NTOC) conducted a 2005 survey of 378 agencies in 49 states on traffic signal operations. The results, detailed in the National Traffic Signal Report Card revealed that 50% of the respondents did not conduct timing reviews every 3-5 years. Without properly timed signals, an agencyís capacity to reduce congestion along arterials and respond to planned and unplanned events is severely hampered.

This T3 Webinar focuses on the impact of signal coordination. Two presenters, Bill Henry from the City of Little Rock, and Reggie Chandra from the Mid-America Regional Council (MARC), will present on their efforts to improve signal timing in their regions. Mr. Henry will discuss signal coordination using a timing innovation known as Dallas Phasing. He will provide background on the timing project, offer a description of the implementation, and discuss lessons learned. Mr. Chandra will present on Operation Green Light, a signal timing project that continues to optimize traffic-signal corridors that span across multiple jurisdictions (20 municipal agencies and 2 states in the Kansas City Metropolitan Area). Mr. Chandra will focus on the costs and benefits of traffic signal optimization in Olathe, KS and discuss both technical and institutional issues overcome.

This T3 webinar stems from a ITS Peer-to-Peer visit where Mr. Henry traveled to Kansas City to participate in a peer exchange on the topic of Dallas Phasing. At the time of the visit, MARC was interested in learning how Little Rock implemented this type of signal phasing. Dallas Phasing had proven to improve progression along protected-plus-permitted traffic signals in Little Rock. Learn more about the ITS Peer-to-Peer Program.

Target Audience

  • Elected and appointed officials
  • State and local agency engineers and technicians interested in learning about the technical and institutional issues of signal coordination

Learning Objectives

  • Familiarity with traffic signal timing implementation issues
  • Familiarity with the specific timing procedure of Dallas Phasing
  • Understanding of institutional approaches to coordinating signals across multiple jurisdictions