摘要
交叉口的复杂程度严重影响着交叉口功能区的交通安全和通行效率,空间布局和运行组织过于简单则缺乏功能稳定性,过于复杂则导致交叉口功能稳定性降低;故深入研究交叉口复杂度对于改善交叉口运行状态,提升交叉口功能稳定性、避免交通堵塞具有重要意义。为促进城市道路平面交叉口复杂度研究,系统梳理了中外城市道路平面交叉口复杂度的相关研究进展。介绍了城市道路平面交叉口复杂度的定义、内涵和计算模型;讨论了各种交叉口复杂度计量模型的特点并分析了其相对于前人提出模型的优势及仍存在的问题;对城市道路平面交叉口复杂度的研究前景进行了展望。城市道路平面交叉口复杂度的计量模型和等级划分有待进一步完善,为获得更为准确的交叉口复杂度评估结果,有必要研究融合交叉口通行效率和安全的交叉口复杂度计算模型;为合理、准确评价城市道路平面交叉口的交通运行状态,应加快推动交叉口复杂度研究成果在中国的实际应用。
The complexity of intersection affects the traffic safety and efficiency of intersections seriously.An oversimplified layout and traffic organization of an intersection cannot gain enough functional stability,while over complicated layout and traffic organization may reduce the functional stability of the intersection.Therefore,studying the complexity of intersections is significant to the intersections'running state improving,intersections'functional stability enhancing and traffic jams avoidance.Aiming to promote the research on the complexity of urban road intersections,the research of urban road intersection complexity in China and abroad were reviewed systematically.The definition,connotation and metrology model of urban road intersection complexity were introduced,the characteristics of various metrology models were discussed,and their advantages over previous models and some of their own problems were analyzed.Finally,new directions in urban road intersection complexity research were put forward.The analysis of the researches indicates that the existing models and classification of urban road intersection complexity need to be further improved,which is necessary to develop urban road intersection complexity measurement models taking into account information on the traffic efficiency and traffic safety at intersections.To evaluate the traffic operation status of urban road intersections reasonably and accurately,the application of research results in China should be promoted.
作者
郭凤香
熊昌安
GUO Feng-xiang;XIONG Chang-an(School of Transportation,Kunming University of Science and Technology,Kunming 650500,China)
出处
《科学技术与工程》
北大核心
2021年第6期2141-2150,共10页
Science Technology and Engineering
基金
国家自然科学基金(71961012,71461015)。
关键词
平面交叉口
复杂度
计算模型
研究进展
urban road intersection
complexity degree
metrology model
research progress
