首届CCF中国智能汽车学术年会(CIVS 2023)
  • 登录
  • 注册
  • 欢迎您:hlladmin 退出
报名
分享

微信扫一扫:分享

微信里点“发现”,扫一下

二维码便可将本文分享至朋友圈

会议投稿 大会注册
  • 首页
  • 会议介绍
  • 会议动态
  • 本期嘉宾
  • 会议日程
  • 资料下载
  • 参会指南
  • 合作单位
  • 组织机构
  • 首页
  • 会议介绍
  • 会议动态
  • 本期嘉宾
  • 会议日程
  • 资料下载
  • 参会指南
  • 合作单位
  • 组织机构
  • 欢迎您:hlladmin
  • 退出
  • 登录
我要报名
本期嘉宾
刘朋娜 北京交通大学

报告题目: Traffic Signal Timing Optimization Based on Intersection Importance in Vehicle-Road Collaboration

演讲摘要:Vehicle-road collaboration positively promotes vehicle development and intelligent transportation. The construction of intelligent transportation cannot be separated from optimizing traffic signal timing, which is crucial for improving traffic efficiency, reducing congestion, and minimizing accident risks. Nowadays, reinforcement learning (RL) has emerged as an effective method for traffic signal timing optimization. However, many current RL-based approaches ignore the variations among different intersections, reducing the traffic efficiency. In this paper, we propose a novel method for traffic signal timing optimization, which models the problem of traffic timing optimization as an importance-oriented decision making problem. To achieve this, we first construct a directed adjacency graph based on the real road network. Then, a graph attention neural network (GAT) is utilized to estimate the importance of each intersection. Finally, we introduce the nodes importance into the reward function to find the optimal traffic light timing scheme. Extensive experiments demonstrate that our proposed method achieves higher traffic efficiency, compared to existing RL-based traffic signal timing optimization methods which ignore the intersection importance. Moreover, our method fits well with different RL algorithms, including Q-learning, DQN, Sarsa, DDPG and A3C.

讲者简介:Pengna Liu graduated from Hebei University of Science and Technology with a bachelor's degree in Computer science and Technology in 2022. She is currently a master's student in computer technology at Beijing Jiaotong University. Her main research interests are traffic signal timing optimization and reinforcement learning.

版权所有:中国计算机学会技术支持邮箱:conf_support@ccf.org.cn

京ICP备13000930号-4 京公网安备11010802032778号