Research & Innovation

Cost/Benefit Analysis of Fuel-Efficient Speed Control using SPaT Data

Summary:

MnDOT's Connected Corridor project in 2020 contributed to progress in the development and deployment of technology for vehicle-to-infrastructure communications. Using signal phasing and timing (SPaT) data from signalized intersections to control driving speed, this project completed a cost benefit analysis for use of SPaT data in connected vehicles (CVs) and its effect on fuel efficiency. The analysis was performed by: • Outfitting four vehicles with communications and tools to record SPaT data, geometric lane data, vehicle trajectories, and speed / acceleration profiles. • Developing a traffic flow prediction model and speed control method from the previously collected data which could predict upcoming traffic and calculate the vehicle's optimal speed to minimize fuel consumption. • Re-driving the test corridors to refine the model and speed control method. • Performing laboratory testing to predict and evaluate fuel savings from CVs driving the corridor. The analysis was completed for diverse traffic scenarios at different CV market penetrations ranging from 10% to 90%.

Final Deliverables:

• Cost/Benefit Analysis of Fuel-Efficient Speed Control using SPaT Data (Fact Sheet #2025-15)

Related Materials:

Related Research:

Project Personnel:

Principal Investigator:  Connected and Automated Vehicle Office
Project Coordinator:  Not Available