Using Visible Light Communication to Implement Intelligent Traffic Signals and Cooperative Trajectories at Urban Intersections

R. Fernandes, M. A. Vieira, M. Vieira, P. Vieira, P. Louro, Mário Véstias

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An integrated approach that optimizes traffic signals and vehicle trajectory at urban intersections using Visible Light Communication (VLC) is proposed. A connected vehicle (CV) platoon approaches a signalized intersection, and downstream CVs queue before the stop lines. Light is used to communicate information between CVs and the infrastructure using street lamps, intersection signals, and headlights. Interaction with traffic is coordinated by an intersection manager. Integrated control is flexible and adaptive to traffic demands since different traffic movements are incorporated during multiple signal phases. As part of the simulation process, an open-source urban mobility simulator SUMO creates the desired scenarios and generates different urban traffic flows. VLC queue/request/response mechanisms and temporal/space relative pose concepts are used. Using sequence state durations, phase diagrams, and average speed measurements, the system dynamically controls traffic flows at intersections using a deep reinforcement learning (DRL) algorithm, minimizing rush hour bottlenecks, through joint Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) communications. Comparisons with trajectory optimization and signal optimization demonstrate the benefits on throughput, delay, and vehicle stops, and reveal the optimal patterns for signals and trajectory.
Original languageEnglish
Title of host publicationLight-Emitting Devices, Materials, and Applications XXVII
EditorsJong Kyu Kim, Michael R. Krames, Martin Strassburg
PublisherSPIE-International Society for Optical Engineering
ISBN (Print)978-151065987-2
DOIs
Publication statusPublished - 2023
EventLight-Emitting Devices, Materials, and Applications XXVII 2023 - San Francisco, United States
Duration: 30 Jan 20231 Feb 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE-International Society for Optical Engineering
Volume12441
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLight-Emitting Devices, Materials, and Applications XXVII 2023
Country/TerritoryUnited States
CitySan Francisco
Period30/01/231/02/23

Keywords

  • Cooperative Traffic control
  • Deep Learning Algorithm
  • Intelligent traffic signals
  • SiC receivers
  • Urban Mobility Simulator
  • Vehicular-Visible Light Communication (V-VLC)
  • White LEDs transmitters

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