The Florida LTAP Center presents this webinar series on Traffic Signal Timing 101 – The Basics of Local Intersection Control. This webinar series is divided into three two-hour webinars designed to provide participants with an understanding of the operation of local intersection signal controllers and the various timing parameters needed for the safe and efficient operation of the intersection. This series addresses local intersection control operations; a subsequent series will cover the basics of detection, preemption and priority, and signal coordination.
- Understand basic traffic flow characteristics and roadway capacities as they relate to signalized intersections.
- Understand intersection phasing needs and the timing interval components of each phase.
- Understand controller ring structure
- Recognize the different types of signal controllers and how they can be used for intersection operations.
- Understand the ring-based structure of controllers and how signal phase sequences can impact operations.
Peter J. Yauch, P.E., PTOE, RSP2i serves as a TSM&O Program Manager for Iteris’ Transportation Systems division. His responsibilities include project management and technical oversight for a variety of arterial traffic operations and safety projects. Mr. Yauch has over 44 years of experience in traffic operations, ITS, and safety, with a unique mix of public sector (state, county, and municipal) and private sector (design and operations consulting) roles. He leads TSM&O activities, overseeing arterial operations, performance monitoring, and safety related efforts. Mr. Yauch is the author of several papers on TSM&O topics and a frequent presenter at Institute of Transportation Engineers (ITE) conferences. He is a past member of the International Board of Direction of the Institute and served on the Executive Committee of the Traffic Engineering Council and a multiple term past president of the Florida Puerto Rico District of the Institute. He now serves as District Administrator.
John A. Albeck, P.E., PTOE serves as a Traffic Operations Program Manager for Iteris’ Transportation Systems division. He has over 28 years of experience working in the fields of traffic engineering, traffic signal timing and optimization, traffic system design, traffic training course development, traffic modeling, traffic software (Synchro, SimTraffic, Warrants) research and development, traffic software technical support, traffic software user guide development, safety investigation, and preliminary roadway design.
To earn Professional Development Hours (PDHs) or a Certificate of Completion for each recorded webinar, you must view the entire webinar. After viewing, please send an email to FloridaLTAP@cutr.usf.edu with your name and the name of the webinar you viewed. The Florida LTAP Center will follow-up within 1-2 weeks.
Each session will award 2.0 PDH’s. A total of 6.0 PDH’s can be earned for fully viewing all 3 recordings.
Click the tabs below to view the recorded webinars.
Part 1 of 3 – Basic Vehicular Timing Considerations and Signal Phasing/Intervals
In this first session, we will introduce the course objectives, goals, and glossary of terms. The following topics will be covered: Traffic Flow Theory, Greenshields Equation for Discharge, Saturation Flow Rate, Lane Capacity, Intersection Capacity, Through Movements, Left Turn Movements (Protected, Permitted, Protected/ Permitted), Vehicular Intervals, and Pedestrian Intervals.
Part 2 of 3 – Phasing Sequences and Signal Controllers
In this second session, we will cover the following topics: Through Movements, Left Turn Movements, Left Turn Trap, Split Phasing, Overlaps, Pedestrian Movements, Leading Pedestrian Intervals, Fixed Time Controllers, Actuated Controllers, Controller Standards, and Ring Structure.
Part 3 of 3 – Phase Intervals Safety and Efficiency
In this third session, we will cover the following topics: Safety Walk, Pedestrian Change, Yellow Change, Red Clearance, Minimum Green, Extension/Passage, Maximums, and Volume-Density.