Traffic Signal Specialist


Supervisor, Public Works Maintenance (221)

Supervisory Civil Engineer (222)


Public Works


● Traffic Maintenance 3210

● Traffic Services 3200









JOB SUMMARY STATEMENT: Performs field and shop maintenance on City owned traffic signals, communications system, Intelligent Transportation System (ITS) devices, and computer controlled traffic signal system. Uses an advanced level of skill and training in electronics to diagnose corrective action, repair/replace system components and install computer software. Utilizes specialized tools and equipments such as electronic meter reading devices, personnel lifts and computerized diagnostic equipment. Responds to after-hour/weekend emergencies, as assigned. Participates in emergency operations, including snow removal, as required.


Conducts routine field maintenance on City owned traffic signals. Travels to site and visually observes traffic signal. Tests, repairs, and assists in installation of traffic loop detectors. Tunes or replaces electronic signal equipment; reads blueprints and intersection drawings; tests "live" wires buried throughout the intersection; replaces signal lamps, poles, and other hardware. Investigates complaints and observed malfunctions. Troubleshoots signal hardware and software problems. Analyzes software problems by microprocessor keyboard entry and use of laptop computer.

Conducts shop maintenance on malfunctioning electronic signal equipment. Performs electronic and computer generated diagnostic tests to analyze and determine location of faulty printed circuit board. Locates defective components using meters, oscilloscope and schematic diagrams and replaces faulty components. Tests new components and returns faulty components to manufacturer for repair.

Assists in the training of other technicians in the maintenance of traffic signals , street lights and/or related electric/electronic devices.

Acts as a team leader for maintenance work assigned to temporary work teams.

Performs preventive maintenance on signalized intersections. Periodically inspects intersections by visually observing equipment operation; testing the active and passive electric and electronic devices; uploads all timing parameters from the intersection; notes any changes; downloads all current, corrects timing parameters using a lap-top computer; prints a hard-copy of timing parameters and performs diagnostic test on the conflict monitors lap-top computer and other diagnostic equipment.

Performs field maintenance of OPTCS wired and wireless data communication systems. Utilizes spectrum analyzer and field strength meter to diagnose and evaluate problems with television data cables. Corrects problem by adding or subtracting level pads from forward or reverse lines, replaces passive components, modem or 170 CPU board. Diagnoses and corrects problems with fiber optic communication lines within the control cabinet.

Performs maintenance of OPTCS data communication links. Conducts office location tests of R-F broadband modem and controller input/output circuits to component level using diagnostic test equipment, including, oscilloscope, soldering station, and schematic diagram. Repairs or replaces equipment as necessary.

Performs diagnostics on electronic cameras, CCTV observation cameras, pre-emption devices, dynamic message boards, audible pedestrian devices, and other electronic devices as part of the Intelligent Transportation System. Makes repairs and performs maintenance as required.

Monitors traffic detector status (both inductive loop and video detection) by reviewing computer logs, analyzing data, testing field equipment, and maintaining an intersection history file.

Assists in the inspection of new signal installations, as assigned. Reviews signal plans, signal equipment specifications, and applicable signal installation codes. Participates in the start up of new signal systems and confirms city maps are updated.

Assists in the installation of new or temporary signal systems, as assigned. Follows proper installation and start up procedures. Reviews and interprets plans/blue prints and specifications..

Inputs work activities into an automated work management system. Provides data input for asset management activities.

Responds to emergency call-outs involving traffic signal malfunctions and/or other traffic related emergencies, as assigned. Responds in accordance to established call-out procedures.

Responds in support of citywide emergencies such as flood, storm, major traffic accidents, and snow removal operations. Operates a plow truck during snow operations, as assigned.

The employee must work the days and hours necessary to perform all assigned responsibilities and tasks. Must be available (especially during regular business hours or shifts) to communicate with subordinates, supervisors, customers, vendors and any other persons or organization with whom interaction is required to accomplish work and employer goals.

The employee must be punctual and timely in meeting all requirements of performance, including, but not limited to, attendance standards and work deadlines; beginning and ending assignments on time; and scheduled work breaks, where applicable.



Associate's degree in Electronic Technology, Computer Wiring/Repair, or related field of study, or an equivalent combination of education and experience.

Possession of an appropriate, valid driver's license.

Must have and maintain a Class A commercial driver's license with air brake and tanker endorsements within 12 months of hire.

Must maintain an insurable driving record.

Must have the following certifications within 12 months of employment with the City:

- Certification in bucket truck and digger derrick operation.

- International Municipal Signal Association (IMSA) Traffic Signal II (re-certification ISMA Traffic Signal III every 5 years thereafter).


Three to four years of bench and field experience, or an equivalent level of experience, in the maintenance and repair of microprocessors based electronic traffic system controllers and other field hardware.

General knowledge of CCTV operations and components, computer based diagnostic equipment, controls, fiber optic data lines, and wireless communication systems.


Good written and oral communication skills.

Computer and microprocessor skills.

Analytical skills.

Attention to detail.

Basic mathematic skills.

Computer software skills such as database, spreadsheet, word-processing, and traffic controller programs.

Electronic skills at circuitry level.

Basic electrical skills.

Electronic troubleshooting.

Project management skills.

Time management skills.

Tact and diplomacy.

Organizational skills.

Work zone and electrical safety skills.

Teamwork skills.

Leadership skills.


Ability to read and comprehend city, state and federal regulations.

Ability to prioritize work and work independently.

Ability to analyze complex problems and recommend possible solutions.

Ability to assess situation and use judgement in responding.

Ability to meet deadlines.

Ability to carry out assignments though oral and written instructions.

Ability to learn and understand PC software applications.

Ability to read and understand signal schematics and plans.

Ability to work under distracting conditions, including heavy traffic and inclement weather.

Abstract and logical reasoning.

Alpha and numeric recognition.

Mechanical aptitude.


Ability to analyze safety situations.

Ability to train and guide others.


Hand and eye coordination adequate to input keyboard and operate various technical components.

Ability to drive City vehicles.

Ability to receive and transmit messages by radio and phone.

Ability to travel to and tour work sites.

Exposure to chemicals, dust, smoke, gases and vapors.

Exposure to exhaust fumes and vehicle noise.

Exposure to extreme environmental conditions.

Exposure to high voltage.

Ability to work at heights up to 50 feet.

Ability to operate/drive heavy equipment.

Hand-eye coordination to examine small parts and equipment.

Ability to use hand and power tools (soldering iron, screwdrivers, cable strippers, knives, drills, saws, spectrum analyzer and microcomputer controllers).

Ability to identify and distinguish colors.

Ability to distinguish smells.




The preceding job description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of employees assigned to this job.