论文标题
在无信号十字路口的骑士的合作驾驶策略的比较
Comparison of Cooperative Driving Strategies for CAVs at Signal-Free Intersections
论文作者
论文摘要
在交叉路口计划和控制连接和自动化车辆(CAVS)的合作驾驶策略的特性范围从某些实现高效协调性能到实施在计算快速的其他人。本文全面比较了在不同条件下的旅行时间,能源消耗,计算时间和公平性方面的四种代表性策略的表现,包括交叉点的几何配置,交通到达率的不对称性以及这些速率的相对大小。我们基于模拟的研究得出了以下结论:1)基于蒙特卡洛树搜索(MCT)策略达到了最佳的交通效率,而动态重新方程(DR)基于策略的策略是能量最佳的;两种策略在所有感兴趣的指标中都表现良好。如果计算预算足够,则建议使用MCTS策略;否则,DR策略是可取的; 2)不对称的交叉路口对策略有明显的影响,而到达率的影响可以忽略。当几何形状不对称时,经过修改的首先出局(FIFO)策略显着超过了FIFO策略,并且在交通需求中等时效果很好,但是在其他情况下它们的性能相似。 3)提高交通效率有时会以公平性为代价,但是可以调整DR和MCTS策略,以通过适当设计其目标功能来实现各种绩效指标之间的更好权衡。
The properties of cooperative driving strategies for planning and controlling Connected and Automated Vehicles (CAVs) at intersections range from some that achieve highly efficient coordination performance to others whose implementation is computationally fast. This paper comprehensively compares the performance of four representative strategies in terms of travel time, energy consumption, computation time, and fairness under different conditions, including the geometric configuration of intersections, asymmetry in traffic arrival rates, and the relative magnitude of these rates. Our simulation-based study has led to the following conclusions: 1) the Monte Carlo Tree Search (MCTS)-based strategy achieves the best traffic efficiency, whereas the Dynamic Resequencing (DR)-based strategy is energy-optimal; both strategies perform well in all metrics of interest. If the computation budget is adequate, the MCTS strategy is recommended; otherwise, the DR strategy is preferable; 2) An asymmetric intersection has a noticeable impact on the strategies, whereas the influence of the arrival rates can be neglected. When the geometric shape is asymmetrical, the modified First-In-First-Out (FIFO) strategy significantly outperforms the FIFO strategy and works well when the traffic demand is moderate, but their performances are similar in other situations; and 3) Improving traffic efficiency sometimes comes at the cost of fairness, but the DR and MCTS strategies can be adjusted to realize a better trade-off between various performance metrics by appropriately designing their objective functions.