同济大学学报（自然科学版）2026，Vol.54Issue(5)：695-706,12.DOI:10.11908/j.issn.0253-374x.25054
设辅助车道的高速公路连续入出口最小净距
Minimum Spacing of Consecutive Entrance and Exit on Expressways with Auxiliary Lanes
摘要
Abstract
To determine the minimum spacing between entrance and exit ramps(collectively referred to as consecutive entrance and exit)with auxiliary lanes—a parameter not specified in current design codes—this study analyzed traffic flow characteristics using measured data from three interchanges.Key parameters from the《Highway Capacity Manual 2010》(HCM2010)weaving analysis method were fitted,and the weaving speed prediction model was optimized with a genetic algorithm.The revised model was applied within the HCM2010 framework to propose minimum spacing recommendations,using maximum weaving length and the lowest acceptable level of service as criteria.Simulation evaluations based on conflict rates confirmed that all recommended spacings meet safety requirements.The results indicate that spacing is negatively correlated with weaving flow,weaving ratio,and design speed,and weakly positively correlated with lane count—with flow exerting a significantly greater influence than design speed,and entrance flow playing a dominant role.关键词
交通工程/连续入出口/交织区交通流特性/修正交织区速度预测模型/冲突率Key words
traffic engineering/consecutive entrance and exit/traffic flow characteristics in the weaving section/revised weaving speed prediction model/conflict rate分类
交通工程引用本文复制引用
潘兵宏,吴尚勋,曾志刚,周世扬,马依文..设辅助车道的高速公路连续入出口最小净距[J].同济大学学报（自然科学版）,2026,54(5):695-706,12.基金项目
湖南省交通运输厅科技项目(202007) （202007）
