• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Computer-Aided Civil and Infrastructure Engineering >Dynamic Speed Harmonization in Connected Urban Street Networks
【24h】

Dynamic Speed Harmonization in Connected Urban Street Networks

机译：互联城市街道网络中的动态速度协调

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Connected vehicle technology, the Internet of Things, and other advanced communication technologies create possibilities to facilitate the movement of vehicles through transportation networks and reduce their travel time. Harmonizing the speed of vehicles in different network links not only yields a more efficient network capacity utilization, but also regulates the movement of vehicles to achieve a smoother flow of traffic. This study develops a mathematical nonlinear formulation for dynamic speed harmonization in urban street networks aiming at improving traffic operations. We have converted the nonlinear problem into a linear program utilizing the fundamental flow-density relationship and developed a model predictive control approach to account for stochastic changes in traffic demand and further improve the efficiency of the developed solution algorithm. Results showed that the algorithm efficiently found dynamic optimal advisory speeds on various network links, and speed harmonization significantly reduced the travel time (up to 5.4%), speed variance (19.8%-29.4%), and the number of stops (8.3%-18.5%), while increasing the average speed (up to 5.9%) and the number of completed trips (up to 4%) in our case study network under all tested demand patterns.
机译：互联的车辆技术，物联网和其他高级通信技术为通过交通网络促进车辆行驶并减少其行驶时间创造了可能性。协调不同网络链路中车辆的速度，不仅可以提高网络容量的利用率，还可以调节车辆的移动，以实现更顺畅的交通流量。这项研究针对城市街道网络中的动态速度协调发展了数学非线性公式，旨在改善交通运营。我们已经利用基本流量密度关系将非线性问题转换为线性程序，并开发了一种模型预测控制方法来解决交通需求的随机变化，并进一步提高了开发的求解算法的效率。结果表明，该算法有效地找到了各种网络链路上的动态最佳咨询速度，并且速度协调显着减少了旅行时间（最多5.4％），速度差异（19.8％-29.4％）和停靠点数（8.3％- 18.5％），同时在所有经过测试的需求模式下，我们的案例研究网络均提高了平均速度（最高5.9％）和完成的出行次数（最高4％）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号