冰雪条件下高速公路可变限速方法  

Variable Speed Limit Control Method for Freeway under Snow and Ice Conditions

作　　者：姚冬冬[1] 马林 陶鹏飞[2] 于丽梅[1] 吴丛 孔彩华 YAO Dongdong;MA Lin;TAO Pengfei;YU Limei;WU Cong;KONG Caihua(Scientific Research Development Center,Jilin Province Institute of Transportation Science,Changchun 130012,China;College of Transportation,Jilin University,Changchun 130022,China;Office of Educational Administration,Yunnan Open University,Kunming 650599,China)

机构地区：[1]吉林省交通科学研究所科研开发中心,长春130012 [2]吉林大学交通学院,长春130022 [3]云南开放大学教务处,昆明650599

出　　处：《吉林大学学报（信息科学版）》2020年第3期258-265,共8页Journal of Jilin University（Information Science Edition）

基　　金：国家自然科学基金资助项目(51705196);吉林省交通运输科技基金资助项目(2016-1-9)。

摘　　要：高速公路在冰雪天气下需要进行封路或限速等措施,导致道路通行能力减小,车辆行驶安全性下降。针对该问题,在考虑道路线形、冰雪条件道路特性与交通流特性的基础上,提出一种基于冰雪条件的高速公路可变限速方法。建立了包含道路线形与冰雪条件的速度生成模型,同时引入模糊控制系统对路面雪况进行预测。通过Vissim软件对高速公路部分路段进行仿真实验,结果表明,该可变限速方法可根据雪况动态调整限速值,相比于对照组Ⅰ(固定限速)降低了车辆延误,提高了通行效率,相比于对照组Ⅱ(封路除雪+无限速)提高了道路通行能力。表明相较于传统方法,该方法能更有效地保证冰雪条件下高速公路车辆通行效率与安全性。Freeways need to be closed or speed-limited in ice and snow conditions,which may lead to problems such as reducing road capacity and vehicle safety.In order to solve this problem,this paper proposes a variable speed limit method for freeway under ice and snow conditions based on the characteristics of road alignment,ice and snow conditions and traffic flow characteristics.A velocity generation model including road alignment and snow conditions is established,and a fuzzy control system is introduced to predict the snow condition.The simulation experiment was carried out by Vissim software in some sections of the freeway.The results show that the variable speed limit method proposed in this paper can dynamically adjusts the speed limit value according to the snow condition.It reduces the vehicle delay compared with the control group Ⅰ(fixed speed limit)and improves traffic efficiency and road capacity compared to control group Ⅱ(road closure and snow removal+no speed lim it).It shows that compared with the traditional method,the proposed method performs better ensuring the efficiency and safety of highway vehicles under ice and snow conditions.

关 键 词：智能交通 可变限速 模糊控制 高速公路 冰雪条件 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] U491[自动化与计算机技术—控制科学与工程]