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Expert Controlled Signal Systems & Services

Keep intersections moving safely with Controlled Signal Systems & Services from Traffic Control Corporation. Our Midwest team supports transportation agencies, DOTs, and contractors with signal turn-ons, detection audits, ATMS support, cabinet troubleshooting, and certified repair coordination—helping your network stay reliable, compliant, and ready for daily traffic demands across changing weather and peak commuter periods year-round.

Technician servicing a traffic signal control cabinet

Our Controlled Signal Services

Technical support, audits, repairs, training, and system services for modern traffic signal networks.

System Health Checks

Comprehensive audits evaluate preemption, detection, ATMS, and cabinet conditions to identify reliability risks, maintenance needs, and performance issues before they affect intersection operations or agency schedules.

Field Support

Factory-trained technical staff provide product application assistance, signal turn-on support, onsite troubleshooting, ATMS upgrades, and systems training for agencies, municipalities, contractors, and transportation partners.

Hardware Repair

Controller repair, video detection repair, and conflict monitor testing help restore dependable equipment performance while supporting required safety documentation and certification needs.

ATMS Support

Advanced traffic management system support includes Centracs overview, installation, upgrades, health checks, monitoring tools, alerts, reports, scheduling, maps, and intersection hardware coordination.

Signal Turn-On

Authorized technicians help initialize, test, and activate newly installed traffic signals, supporting controller setup, detection turn-on, and safe intersection commissioning.

Detection Audits

Video, radar, and detection system audits correct alignment, calibration, camera lens, and tracking issues so intersections respond accurately to real traffic conditions.

System Reliability

Reliable Signal Networks Start Here

Traffic Control Corporation helps agencies protect public safety and traffic flow with coordinated support for controllers, cabinets, detection, preemption, and ATMS environments. From Woodridge to field offices across the Midwest, our team combines product knowledge, onsite diagnostics, and factory-trained support to reduce downtime, improve coordination, and keep critical infrastructure performing as intended through every season and deployment phase.

Technician testing traffic signal controller equipment
Trusted By Agencies

Proven Support

Trusted by agencies, contractors, and transportation partners managing critical signal infrastructure throughout the Midwest.

"Nice and quick for delivery."

TURAB
TURAB

"Best Traffic items around! Excellent customer service"

Eric Ross
Eric Ross

"Fast in and out"

antonio wright
antonio wright

"Great traffic engineering products, brilliant staff best in Illinois."

Steve Zaburunov
Steve Zaburunov

"Nice and quick for delivery."

TURAB
TURAB

"Best Traffic items around! Excellent customer service"

Eric Ross
Eric Ross

"Fast in and out"

antonio wright
antonio wright

"Great traffic engineering products, brilliant staff best in Illinois."

Steve Zaburunov
Steve Zaburunov

"Nice and quick for delivery."

TURAB
TURAB

"Best Traffic items around! Excellent customer service"

Eric Ross
Eric Ross

"Fast in and out"

antonio wright
antonio wright

"Great traffic engineering products, brilliant staff best in Illinois."

Steve Zaburunov
Steve Zaburunov
The TCC Difference

Why Choose Traffic Control Corporation?

Traffic Control Corporation combines long-standing expertise with responsive regional service and technical depth.

Experience

Over 75 years of traffic control expertise rooted in Midwest transportation infrastructure needs.

Technical Team

Factory-trained staff support onsite troubleshooting, system turn-ons, audits, repairs, and product training.

Regional Reach

Woodridge inventory and regional offices help support agencies across eleven Midwest states efficiently.

Product Access

Representation of 40+ manufacturers helps match signal solutions to agency standards and applications.

Meet The TCC Team

Experienced support for agencies and transportation infrastructure partners.

Traffic Control Corporation began in 1946 when Joseph Lizzadro, Sr. and Edward R. Hansen formed the company in Chicago at 134 North LaSalle Street. From those early roots as an exclusive distributor for Automatic Signal Company in Illinois, Indiana, and Wisconsin, the business grew with the Midwest’s expanding transportation needs after World War II. Today, Traffic Control Corporation operates from Woodridge, Illinois, with regional sales offices in Indiana, Missouri, Minnesota, and Iowa. For over 75 years, the company has stayed ahead of transportation technology advancements while supporting state and local agencies, contractors, and consultants across an eleven-state Midwest territory.

75+ YearsEstablished traffic control expertise since 1946.
11 StatesService coverage throughout the Midwest region.
40+ ManufacturersBroad access to leading traffic technology products.

Frequently Asked Questions

What is a control signal?

A control signal is an electrical, digital, or programmed command that directs equipment to perform a specific action. In traffic infrastructure, control signals manage functions such as signal phases, pedestrian calls, vehicle detection inputs, emergency vehicle preemption, and coordinated timing. Reliable control signals help intersections operate safely, reduce conflicting movements, and support predictable traffic flow across connected transportation networks.

What controlled signal system services do you provide?

How does a traffic signal system health check work?

Do you offer onsite troubleshooting for traffic signal equipment?

What is included in traffic signal turn-on service?

Can traffic signal controllers and monitors be repaired?

What areas does Traffic Control Corporation serve?

How is pricing determined for controlled signal services?

Still Have Signal System Questions?

Connect with our team for practical technical guidance.

Midwest Service Areas

Serving agencies and contractors across the Midwest with field support, audits, repairs, and system services.

11 States

Service Area

7AM–5PM

Business Hours

4.8★ Rating

Customer Rating

Do We Service Your Area?

Share your project location and service need today.

Trusted Expertise

Awards and Recognition

75 plus years experience badge

75+ Years Experience

Over 75 years supporting transportation technology.

Factory trained support badge

Factory-Trained Support

Technical team trained on leading traffic systems.

40 plus manufacturer network badge

40+ Manufacturer Network

Access to products from leading manufacturers.

Ready to Strengthen Your Signal Network?

Tell us about your signal system, service need, or upcoming project. Our team will help route your request to the right technical support contact.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 630-543-1300. You can also send us a quick email at issnews@imagesensing.com.