Traffic Control Technician Job Description

A Traffic Control Technician is the person who turns a traffic control plan on paper into a working lane closure on the road. The plan, drawn by an engineer or a traffic control designer and approved by the agency, says which signs go where, how long the taper is, where the buffer space starts and what protects the crew. The technician puts it on the pavement, keeps it intact through the shift and takes it down without leaving drivers confused.

The working vocabulary comes from Part 6 of the Manual on Uniform Traffic Control Devices (MUTCD), which covers temporary traffic control. The manual divides a temporary traffic control zone into four areas: the advance warning area, the transition area where the taper moves traffic over, the activity area that holds the buffer space and the work space, and the termination area. Each piece has its own device spacing tied to speed, and a technician who knows the layout can spot a missing sign or a short taper from the cab of the truck.

A day on a highway job. The shift starts at the yard: loading signs, stands, drums, cones, sandbags and arrow boards in the order they will come off the truck. Setup runs upstream to downstream, warning signs first, so the closure is announced before anyone sees a cone. Once the lane is closed the work turns to maintenance. Paving trains and milling machines move, trucks back in and out, wind knocks devices over and passing vehicles clip them. The technician walks or drives the zone, resets what has moved and keeps a log of what was found and fixed. At the end of the shift, removal runs in reverse.

Flaggers and the public. On two-lane roads, flagging stations replace the lane closure with stop-and-go control. The MUTCD's guidance notes that flaggers make the greatest number of contacts with the public of all highway workers and should be trained in proper traffic control practices and public contact techniques. Technicians may place the flagger stations, relieve flaggers on breaks and run the pilot car between them.

Authority on the job. The manual also says the individual responsible for temporary traffic control should have the authority to halt work until applicable or remedial safety measures are taken. On a contractor crew that may be the Traffic Control Supervisor, with the technician as the one who spots the problem and calls it in.

The public-agency version of the title. The same title appears in city and state traffic departments, where O*NET's traffic technician definition describes field studies of traffic volume, speed, signal effectiveness and lighting under the direction of a traffic engineer. This page covers the construction work zone job, which is about building and protecting closures rather than studying traffic.

No degree is needed. A high school diploma or GED is the usual starting point, along with a valid driver's license, since the job means driving a loaded sign truck from site to site. As a rough guide, people come in as flaggers or general laborers on a paving or utility crew and pick up setup work over a season or two.

ATSSA credentials. The American Traffic Safety Services Association (ATSSA) lists Flagger, Traffic Control Technician (TCT), Traffic Control Supervisor (TCS), Traffic Control Design Specialist (TCDS) and Truck-Mounted Attenuator Operator (TMA) among its certification designations. Its model training specifications describe the TCT course as an approved course of at least 8 hours, passed with a grade of 80% or greater, covering standards and uniformity, fundamental principles and temporary traffic control zones, among other topics. TCT certification also asks for 1 year of temporary traffic control experience and 2 professional references, and ATSSA requires recertification every four years.

State rules. Federal work zone rules in 23 CFR 630.1008 tell each state to require that people involved in the design, implementation, operation and inspection of work zone traffic control be trained, appropriate to the job decisions each individual is required to make, with periodic training updates. States meet that in different ways. The Minnesota Department of Transportation, for example, runs its own two-day, in-person Traffic Control Supervisor certification course for people working on Minnesota state projects, recommends at least two years of traffic control experience before enrolling, and issues a certification valid for five years. Check the state DOT where you will work before paying for a course.

Other credentials worth holding.

• OSHA 10-Hour Construction card, through the OSHA Outreach Training Program.
• Truck-Mounted Attenuator Operator certification from ATSSA, for crews that run crash trucks.
• A commercial driver's license from your state's licensing agency, if the company's sign trucks require one.
• First aid and CPR training, such as the American Red Cross courses.

Skills that matter on the road.

• Reading a traffic control plan and the state's standard sheets, and matching device spacing to the posted speed.
• Working quickly and calmly at the edge of live traffic, with an eye on the escape route.
• Clear radio work with flaggers, the foreman and the inspector.
• Keeping a clean daily log that will stand up if a crash claim reaches the contractor months later.
• Mechanical basics: changing arrow board batteries, fixing sign stands and checking warning lights.

Moving up. As a rough guide, technicians with a few seasons of setup work and a TCS certification can move into supervising traffic control on larger jobs. Others train in work zone design toward ATSSA's TCDS, go to work as agency inspectors, or move into construction safety and superintendent roles.

BLS does not count work zone traffic control technicians as their own occupation. The title maps to traffic technicians (SOC 53-6041) in BLS's direct-match list, and ONET lists "Traffic Control Technician (Traffic Control Tech)" among that occupation's reported job titles. ONET puts the occupation's 2025 employment at 8,100, projects average growth of 3% to 4% from 2025 to 2035, and expects about 900 openings a year on average. Those figures cover the whole occupation, public-agency traffic study staff included.

Pay in context. Across all industries, BLS put the traffic technician median at $59,090 in May 2025, with 7,860 people employed, most of them in government. BLS lists crossing guards and flaggers as a separate occupation and counted 6,060 of them in construction in May 2025, at a median wage of $45,340. That row is a useful reference for anyone starting out on a flagging paddle.

Connected work zones. Ohio's DriveOhio program reports that smart work zone devices, on site and on trailers, communicate real-time work zone status updates to navigation apps such as Waze and Google Maps, and that digital speed signs display current speed limits and warn drivers of changes or hazards. In Wisconsin, the minutes of the July 24, 2025 Work Zone Safety Task Force meeting record that WisDOT had officially rolled out connected work zones and that they would be required in 2026. The same minutes note a one-week demonstration of an autonomous truck-mounted attenuator with the Dane County Highway Department. For a technician, connected devices mean one more job at setup: making sure the arrow board or start marker is switched on, reporting and placed where the plan says.

Enforcement. Kentucky is one example of a state putting speed cameras in active work zones. There, House Bill 664, known as the Jared Lee Helton Act, authorizes automated speed enforcement in active work zones, and the Kentucky Transportation Cabinet announced on September 26, 2025 that it was beginning to install the devices, with a U.S. 25 work zone in Fayette County and an I-75 work zone near Corbin among the first sites.

Where the career goes. The work follows road and utility construction projects. Long-term moves run up the credential ladder: from technician to supervisor, then toward traffic control design, agency inspection or project safety. A technician who can read a plan, spot a bad taper and write a log an inspector trusts has skills every one of those jobs uses.

What to watch. When a state updates its standard sheets, special provisions or connected-device rules, the technician's layouts change with them. Keeping certifications current, and reading the project specifications before the first setup, is part of the job.

Dear Hiring Manager,

I am applying for the Traffic Control Technician opening with your highway division. For the last two seasons I have worked for a traffic control subcontractor on interstate resurfacing and bridge deck jobs, first as a flagger and then as the second technician on a two-person setup crew. I hold an ATSSA Traffic Control Technician certification, an ATSSA Flagger card and an OSHA 10-Hour Construction card.

Most of my shifts were nights on a four-lane divided highway. I learned to load the sign truck in setup order, run the advance warning signs before the first cone touched the pavement, and keep the taper tight when wind and passing trucks kept pushing drums out of line. I also learned how much the daily log matters. When a driver claimed our closure had no warning signs, my timestamped photos and device checks showed the full layout in place, and the claim was dropped.

One night a milling machine broke down inside the closure and the crew needed the lane open past the planned hour. I called it in to our supervisor, walked the zone with the inspector, and we added cones and a second arrow board check at the merge before morning traffic built up. Nothing about the plan changed without the supervisor's approval, and the inspector signed off on the extension.

I want to work for a contractor that runs its own traffic control so I can take on larger closures and work toward a Traffic Control Supervisor certification. Your crews' work on the corridor widening project is the kind of job I would like to learn on.

Thank you for considering my application. I am available for a ride-along or a yard test at your convenience.

Sincerely, Jordan Reyes