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Eco-Driving Optimization with the Traffic Light Countdown Timer in Vehicle Navigation and Its Impact on Fuel Consumption

Author

Listed:
  • Zhen Di

    (Jiangxi Provincial Key Laboratory of Comprehensive Stereoscopic Traffic Information Perception and Fusion, East China Jiaotong University, Nanchang 330013, China
    School of Transportation Engineering, East China Jiaotong University, Nanchang 330013, China)

  • Shihui Zhang

    (School of Transportation Engineering, East China Jiaotong University, Nanchang 330013, China)

  • Ayijiang Babayi

    (School of Transportation Engineering, East China Jiaotong University, Nanchang 330013, China)

  • Yuhang Zhou

    (School of Transportation Engineering, East China Jiaotong University, Nanchang 330013, China)

  • Shenghu Zhang

    (School of Mathematics and Statistics, Jiangxi Normal University, Nanchang 330039, China)

Abstract

For most drivers of fuel-powered vehicles who do not have specialized eco-driving knowledge, simple and practical strategies are the most effective way to encourage eco-driving habits. By incorporating traffic light countdown timers from vehicle navigation systems, this paper develops a 0–1 integer linear programming (ILP) model to determine the optimal speed curve and further provide actionable, easy-to-implement eco-driving recommendations. Specifically, time is discretized into one-second intervals, with speed and acceleration also discretized. Pre-calculating instantaneous fuel consumption under various speed and acceleration combinations ensures the linearity of the objective function. For a specified road and a given time duration, the optimal speed profile problem for approaching intersections is transformed into a series of speed and acceleration selections. Through the analysis of multiple application scenarios, this study proposes practical and easily adoptable eco-driving strategies, which can effectively reduce vehicle fuel consumption, thereby contributing to the sustainable development of urban traffic.

Suggested Citation

  • Zhen Di & Shihui Zhang & Ayijiang Babayi & Yuhang Zhou & Shenghu Zhang, 2025. "Eco-Driving Optimization with the Traffic Light Countdown Timer in Vehicle Navigation and Its Impact on Fuel Consumption," Sustainability, MDPI, vol. 17(8), pages 1-14, April.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:8:p:3354-:d:1631321
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