Optimization Algorithm Predicts Traffic Signal Information to Improve Fuel Economy (09-073)

Market Overview:

This system utilizes traffic signal and vehicle data to calculate a reference velocity which enables a vehicle to travel through one or more traffic signals.  The global intelligent transportation system market is valued at $23.4 billion in 2019 and is expected to reach a value of $30.7 billion by 2023 at a CAGR of 5.65%.  The reason for this growth is due to the surge of interconnectivity and exchange of data in all market sectors, including transportation.  Vehicle-to-everything (V2X) communication is attractive to both vehicle manufacturers and vehicle owners due to its ability to make the driving experience overall more efficient.  Clemson University researchers have patented a method of utilizing traffic data to meet this market need which reduces idle traffic time and vehicle emissions.


Application                                          Stage of Development

Automotive; Transportation                  Proof-of-concept, road demo at Clemson



• Communication between vehicle and infrastructure reduces idle time at red lights

• Less idle time at red lights reduces vehicle emissions and improves fuel economy

• Vehicle-to-infrastructure communication reduces traffic congestion 


Technical Summary

This method utilizes traffic data from one or multiple traffic signals to determine a discreet range of velocity values that correspond to velocities that will result in the operator not encountering a traffic signal in the red light state.  Then, the algorithm finds velocity values that overlap from the ranges recovered from traffic signals.  These overlapping velocity values are displayed to the operator of the vehicle in an effort to reduce or eliminate the number of red lights the operator will encounter.    It is estimated that in New York City alone, idle cars and trucks produce 130,000 tons of carbon dioxide per year and costing drivers $80 billion per year.


View printable PDF version of this technology



Inventors:                          Ardalan Vahidi

Patent Type:                      Utility

Patent Number:                8,478,500

CURF Ref:                        09-073

Patent Information:
For Information, Contact:
Andy Bluvas
Technology Commercialization Officer
Clemson University Research Foundation
Ardalan Vahidi
Grant Mahler
Energy - Green Technology
© 2024. All Rights Reserved. Powered by Inteum