A Signal Phase and Timing (SPaT) system for connected vehicle applications in Georgia was estimated to cost $6.64 million (2019-2020).

The Georgia Department of Transportation provided cost data for roadside units (RSUs) and on-board units (OBUs) for the Signal Phase and Timing (SPaT) Challenge in 2019 and 2020.

Made Public Date


United States

Summary Information

The Georgia Department of Transportation (GDOT) reported that the total cost for RSUs and OBUs at 1600 intersections in 2019 and 2020 was $6,640,000.

The total itemized system cost is shown in the table below.

FY 2019 (600 intersections) FY 2020 (1000 intersections)
RSU Equipment $780,000 $1,300,000
RSU Deployment $510,000 $850,000
RSU Configuration and Support $1,200,000 $2,000,000
ATCMTD* OBUs (1000) - $1,000,000
Total $2,490,000 $4,150,000
Total $6,640,000

*Advanced Transportation and Congestion Management Technologies Deployment (ATCMTD)

The following table shows the unit costs for the deployment.

Unit Cost Quantity Total
New Radio with C-V2X Support $6,500 per radio 654 $4,251,000
Technical Support (radio configuration, licensing, testing) $1,500 per radio 654 $981,000
Contractor Installation $1,200 per radio 654 $784,800
Total $6,016,800

Lessons Learned from Comprehensive SPaT Deployment and Future Plans

Lessons Learned from Comprehensive SPaT Deployment and Future Plans
Publication Sort Date
Davis, Alan
Georgia DOT

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System Cost

See summary

System Cost Subsystem