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.
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.

Technical support, audits, repairs, training, and system services for modern traffic signal networks.
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.
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.
Controller repair, video detection repair, and conflict monitor testing help restore dependable equipment performance while supporting required safety documentation and certification needs.
Advanced traffic management system support includes Centracs overview, installation, upgrades, health checks, monitoring tools, alerts, reports, scheduling, maps, and intersection hardware coordination.
Authorized technicians help initialize, test, and activate newly installed traffic signals, supporting controller setup, detection turn-on, and safe intersection commissioning.
Video, radar, and detection system audits correct alignment, calibration, camera lens, and tracking issues so intersections respond accurately to real traffic conditions.
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.

Trusted by agencies, contractors, and transportation partners managing critical signal infrastructure throughout the Midwest.
Traffic Control Corporation combines long-standing expertise with responsive regional service and technical depth.
Over 75 years of traffic control expertise rooted in Midwest transportation infrastructure needs.
Factory-trained staff support onsite troubleshooting, system turn-ons, audits, repairs, and product training.
Woodridge inventory and regional offices help support agencies across eleven Midwest states efficiently.
Representation of 40+ manufacturers helps match signal solutions to agency standards and applications.
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.
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.
Connect with our team for practical technical guidance.
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
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Over 75 years supporting transportation technology.
Technical team trained on leading traffic systems.
Access to products from leading manufacturers.
Tell us about your signal system, service need, or upcoming project. Our team will help route your request to the right technical support contact.
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.
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.