数据驱动的出行需求模型

Calibrating Fundamental Diagram of Traffic Flow and Volume-Delay Functions from Both Speed and Count DataPresented by:Arup Dutta, Ph.D.Travel Demand Modeling Program ManagerMaricopa Association of Governments Authors•Maricopa Association of Governments•Arup Dutta (Presenter), Wang Zhang, Haidong Zhu, Vladimir Livshits•Arizona State University•Xuesong Zhou, Mohammad Abbasi•Acknowledgements•Xin Wu (Postdoctoral Researcher at Villanova University) Conference on Innovations in Travel Analysis and PlanningKey Definitions and Concepts•Capacity•HCM Definition•Design Capacity•Ultimate Capacity•V/C Ratio•Volume Delay FunctionConference on Innovations in Travel Analysis and PlanningVolume Delay Function•Defines relationship between the link delay and link flow•As link flow increases, delay increases•Many types of functions used to define this relationship•Bureau of Public Roads (BPR) function •Akçelikfunction•Conical function Conference on Innovations in Travel Analysis and PlanningBPR FunctionC