Simulation-Based Bidirectional Control between AVs and Adaptive Traffic Signal Control

Published:

📌 Project Overview

  • Context: Master’s Thesis at TUM Asia & R&D Project with IABG Industrieanlagen-Betriebsgesellschaft mbH
  • Location: Mobility Innovation Campus (MIC), Munich, Germany
  • Keywords: Autonomous Vehicles (AVs), V2X Communication, SUMO, TraCI, Reinforcement Learning (DQN), Adaptive Signal Control.

🚦 Core Innovation & Methodology

  1. Bidirectional Coordination Framework:
    • Integrated connected autonomous vehicle trajectories with roadside unit (RSU) sensors.
    • Enabled real-time bidirectional negotiation between oncoming AVs and traffic signal controllers.
  2. SUMO/TraCI Microscopic Simulation:
    • Built high-fidelity microscopic simulation environments mirroring the MIC test site geometry and real-world V2X message flows (SPaT, MAPEM, CAM/BSM).
    • Automated co-simulation pipelines using Python and TraCI APIs.
  3. DQN-Based Adaptive Signal Control:
    • Formulated signal phase selection as a Markov Decision Process (MDP).
    • Designed reward functions balancing overall intersection throughput, individual vehicle delay, and queue length.
    • Validated robustness under varying traffic demands (peak/off-peak) and mixed V2X penetration rates (0% to 100%).