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Analysis of highway performance under mixed connected and regular vehicle environment

Journal of Intelligent and Connected Vehicles 2021年第2期4卷 68-79页

作者： Zhao Zhang Xianfeng(Terry)Yang Department of Civil and Environmental Engineering University of UtahSalt Lake CityUSA

Purpose–This study aims to study the connected vehicle(CV)impact on highway operational performance under a mixed CV and regular vehicle(RV)***/methodology/approach–The authors implemented a mixed trafﬁcﬂow model,along with a CV speed control model,in the simulation *** to the different trafﬁc characteristics between CVs and RVs,this researchﬁrst analyzed how the operation of CVs can affect highway capacity under both one-lane and multi-lane cases.A hypothesis was then made that there shall exist a critical CV penetration rate that can signiﬁcantly show the beneﬁt of CV to the overall trafﬁ*** prove this concept,this study simulated the mixed trafﬁc pattern under various ***–The results of this research revealed that performing optimal speed control to CVs will concurrently beneﬁt RVs by improving highway ***,a critical CV penetration rate should exist at a speciﬁed trafﬁc demand level,which can signiﬁcantly reduce the speed difference between RVs and *** results offer effective insight to understand the potential impacts of different CV penetration rates on highway operation ***/value–This approach assumes that there shall exist a critical CV penetration rate that can maximize the beneﬁts of CV *** penetration rate(the proportion of CVs in mixed trafﬁc)is the key factor affecting the impacts of CV on freeway operational *** evaluation criteria for freeway operational performance are using average travel time under different given trafﬁc demand patterns.

关键词： Connected vehicle Highway capacity Mixed trafﬁc Penetration rate variable speed limit paper type research

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