A mathematical theory of traffic hysteresis

A mathematical theory of traffic hysteresis

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Article ID: iaor19993026
Country: United Kingdom
Volume: 33B
Issue: 1
Start Page Number: 1
End Page Number: 23
Publication Date: Jan 1999
Journal: Transportation Research. Part B: Methodological
Authors:
Abstract:

This paper presents a mathematical theory for modeling the hysteresis phenomenon observed in traffic flow. It proposes that acceleration, deceleration and equilibrium flow should be distinguished in obtaining speed–concentration and/or occupancy relationships, such that the phase transitions from one phase to another can be correctly identified. The analysis shows that the speed–concentration curves obtained following this approach are hysteresis loops, as predicted by the theory. The paper also gives a discussion of the general properties of the proposed modeling equations and examines the relationship between traffic hysteresis and stop–start waves observed in traffic flow.

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