Relationship Between Macroscopic Fundamental Diagram Hysteresis and Network-Wide Traffic Conditions
نویسندگان
چکیده
منابع مشابه
Clockwise Hysteresis Loops in the Macroscopic Fundamental Diagram
A recent study reported that the Macroscopic Fundamental Diagram of a medium size city exhibited a clockwise hysteresis loop on a day in which a major disturbance caused many drivers to switch to unfamiliar routes. This paper shows that clockwise loops are to be expected when there are disturbances, especially if the disturbances cause a significant fraction of the drivers to not change routes ...
متن کاملHysteresis phenomena of a Macroscopic Fundamental Diagram in freeway networks
0965-8564/$ see front matter 2011 Elsevier Ltd doi:10.1016/j.tra.2011.04.004 ⇑ Corresponding author. Tel.: +41 21 69 32481; fa E-mail address: [email protected] (N. G Observations of traffic pairs of flow vs. density or occupancy for individual locations in freeways or arterials are usually scattered about an underlying curve. Recent observations from empirical data in arterial networ...
متن کاملAn analytical approximation for the macroscopic fundamental diagram of urban traffic
This paper shows that a macroscopic fundamental diagram (MFD) relating flow and average density must exist on any street with blocks of diverse widths and lengths, but no turns, even if all or some of the intersections are controlled by arbitrarily timed traffic signals. The timing patterns are assumed to be fixed in time. Exact expressions in terms of a shortest path recipe are given, both, fo...
متن کاملSignificance of Fundamental Diagrams to First-Order Macroscopic Traffic Modelling
Macroscopic models are computationally effective and generate reliable estimates of traffic dynamics based upon the principles of flow conservation and propagation, in which the underlying fundamental diagram (i.e. flow-density relationship) has an important part in capturing the plausible traffic propagation over time and space. This study investigates in practice whether, and in what extent, ...
متن کاملDerivation of a Fundamental Diagram for Urban Traffic Flow
Despite the importance of urban traffic flows, there are only a few theoretical approaches to determine fundamental relationships between macroscopic traffic variables such as the traffic density, the utilization, the average velocity, and the travel time. In the past, empirical measurements have primarily been described by fit functions. Here, we derive expected fundamental relationships from ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transportation Research Procedia
سال: 2018
ISSN: 2352-1465
DOI: 10.1016/j.trpro.2018.11.037