About Us


Traffic Engineering

Traffic Signal Design

Intersection Channelization Design

Traffic Signal Coordinated System Design

Roadway Design

Roadway Street Lighting Design

Roadway Signing and Striping Design

Transportation Planning

Traffic Data Collection & Traffic Projections

Traffic Signal Warrant Analysis

Traffic Modeling and Analysis

Traffic Engineering Needs Study

Traffic Impact Study

Transportation Master Plans

Construction Inspection Services

Scheduling & Cost Estimation

Water Resource Engineering


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Traffic Signal Coordinated System Design

There are several types of signal coordination systems available today. The firm studies each client's capabilities to operate and maintain a system and specifies compatible systems within the existing staff capabilities to operate and maintain. Unless required by the client, only proven equipment is specified for use.

Our experience includes over ten closed loop system designs utilizing hardwire interconnect, fiber optic, radio control, microwave and time of day synchronization. The firm has designed systems to replace existing UTCS systems and other types of central control. TQC has specified and worked with NEMA controller systems, 170 controller systems and is familiar with the new NTCIP software protocol.