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Traffic Signal Control Cabinets - Types, Features and Troubleshooting

When - Where

November 7, 2023

(1:00 p.m. - 4:00 p.m. Eastern Time)


3 Professional Development Hours can be granted for this course. No partial credit available. Attendees must attend at least 90% of each day of the workshop to get 3 PDHs.

City Of Sevierville
Public Works Facility
310 Robert Henderson Rd.
Sevierville, TN  37864
Tel: for directions

Register ONLINE here.


This workshop will be offered both online and in-person, simultaneously. Please indicate your attendance preference in the comments section of the registration page.

Over 40 years of traffic controller cabinet evolution has resulted in many major technological advancements. Each cabinet type may have unique features, but many fundamentals remain the same. The purpose of this session is to review the cabinet types, features and troubleshooting perspective using the common fundamentals as a baseline.


Traffic signal practitioners (from technicians to traffic engineers), consultants, etc.


Eric Itzel, ITS Engineer SWARCO McCain

Mr. Itzel's current role is an ITS Engineer for SWARCO McCain. In this role he presents new innovations, provides extensive onsite training and performs other onsite field services to agencies across North America. He also collaborates with other technology and innovation providers in the intelligent transportation sector to better further the industry. When not working onsite Mr. Itzel works from his home office in Thomaston Maine or at the company headquarters in Vista California.

His career spans over 23 years in the combined Information Technology and Intelligent Transportation spaces. In a previous role he was the IT Administrator for the City of Sevierville, Tennessee, from 2008 to 2019. In this role he managed the IT infrastructure, including the city intelligent transportation system since 2011, and was key in acquiring and deploying new technology and innovations. He supervised the deployment and maintenance of a citywide traffic video management systems providing scaled system access to multiple city departments. He also worked extensively with vendors and City staff to build a comprehensive traffic data collection system using raw data collected from video detection technology, traffic signal controllers and other system devices to be used for short and long term planning and analytics. Internally he provided traffic central system software support, new feature testing (coordinating with the vendor), and implementation training to City staff across multiple departments.


    1. Introduction to Traffic Cabinets
      1. Cabinet Types & distinct features
        1. NEMA TS1 and TS2
        2. Caltrans 33X
        3. ATC

    2. Cabinet Components
      1. Power distribution
        1. NEMA
        2. Caltrans
        3. ATC
      2. Cabinet control
        1. NEMA
        2. Caltrans
        3. ATC
      3. Outputs
        1. NEMA
        2. Caltrans
        3. ATC
      4. Inputs
        1. NEMA
        2. Caltrans
        3. ATC
      5. Pluggable components
        1. Outputs
        2. Inputs
        3. Misc (fuses, HDFTRs, etc)

    3. Cabinet Troubleshooting
      1. Cabinet Monitoring devices
        1. NEMA
        2. Caltrans
        3. ATC
      2. Controller Unit
      3. Electrical & Field wiring
      4. Third party software (ECCom, Monitorkey)

    4. Cabinet simulation & testing
      1. Simulators
      2. Component testers/Recertification

    5. Wrap Up


    This is a free workshop.
    Pre-registration is required.

    Register ONLINE here.