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.

Georgia; 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
*Advanced Transportation and Congestion Management Technologies Deployment (ATCMTD)

The following table shows the unit costs for the deployment.

Unit CostQuantityTotal
New Radio with C-V2X Support$6,500 per radio654$4,251,000
Technical Support (radio configuration, licensing, testing)$1,500 per radio654$981,000
Contractor Installation$1,200 per radio654$784,800

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Lessons Learned from Comprehensive SPaT Deployment and Future Plans

Author: Davis, Alan

Published By: Georgia DOT

Source Date: 01/16/2020

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Cost ID: 2020-00446