摘要
【目标】为了解决公交车站附近的公共交通拥堵问题,提高公交车运营效率,节约能源和减少污染物排放,提出了一种基于网联车及车路协同技术的公交车引导方法。【方法】将车辆跟驰模型、Sigmoid函数和基于三角函数的车速引导模型相结合,在设定公交专用道的前提下,通过对多辆公交车车速的协同引导,实现对公交车运行速度的统一调整。通过对引导车与传统公交车在不同交通情境下的表现进行比较,评估方法的可行性与效果,采用仿真验证该方法的有效性,试验选取西安市某交叉口及其南侧公交站作为仿真场景。【结果】引导方法在时空、车速控制和能源消耗等方面,均显著优于传统公交车。在仿真过程中,引导车通过统一的车速引导策略,降低了公交车在站点附近的启停频次,显著提高了公交车进站效率,减少了燃料消耗和污染物排放。【结论】提出的车速引导方法对公交车在公交站附近的启停行为具有显著优化效果,通过统一车速引导减少了启停次数,节约能源并减少排放。同时,车速的稳定性提高了公交车的路面行驶效率,有效缓解了交通拥堵,提升了公交车的整体运营效率。该方法对公交系统的可持续发展具有重要的应用价值,能够为城市的公共交通优化提供理论支持和实践参考。
[Objective]The study investigated to solve the public transportation congestion near bus stops,improve the operational efficiency of buses,save energy,and reduce pollutant emissions.A bus guidance method based on connected vehicles and vehicle-to-infrastructure coordination technology was proposed.[Method]The vehicle following model,Sigmoid function,and trigonometric-based speed guidance model were integrated.On the premise of setting up dedicated bus lanes,the proposed method achieved the coordinated adjustment of bus operation speeds through collaborative guidance of multiple buses.The feasibility and effectiveness of this method were evaluated by comparing the performance of guided buses against conventional buses in varying traffic conditions.The simulation was employed to validate the method efficacy.An intersection and the bus stop to the south of it were selected as the simulation scenario in Xi’an City.[Result]The guided buses significantly outperform conventional buses in terms of spatiotemporal coordination,speed control,and energy consumption,etc.During simulations,the frequency of starting and stopping of buses near bus stops is reduced through a unified speed guidance strategy.This markedly enhances bus arrival efficiency while decreasing fuel consumption and pollutant emissions.[Conclusion]The proposed speed guidance method demonstrably optimizes bus stop-start near bus stops.By implementing the uniform speed guidance,it reduces stop-start frequency,conserves energy,and lowers emissions.Simultaneously,the enhanced speed stability improves road traffic efficiency,effectively alleviates traffic congestion,and elevates overall bus operational efficiency.This method holds significant application values for the sustainable development of public transport systems,providing both theoretical underpinnings and practical guidance for urban public transport optimization.
作者
尹永一
张生瑞
周备
YIN Yongyi;ZHANG Shengrui;ZHOU Bei(School of Transportation Engineering,Chang’an University,Xi’an,Shaanxi 710064,China)
出处
《公路交通科技》
北大核心
2025年第10期161-170,共10页
Journal of Highway and Transportation Research and Development
基金
国家自然科学基金项目(52102404)
长安大学中央高校基本科研业务费专项资金项目(300102343204)。
关键词
智能交通
节能驾驶策略
交通仿真
公交车
车速引导
traffic engineering
energy-saving driving strategy
traffic simulation
buses
vehicle speed guidance
