On the Relationship between Traffic Hysteresis and String Stability of Vehicle Platoons

K. Mattas, G. Albano, R. Donà, Y. He and B. Ciuffo

Transportation Research Part B: Methodological, 2023, vol. 174, issue C

Abstract: The existence, source, and characteristics of hysteresis loops in traffic oscillations have been extensively investigated in the past decades. At the same time, the string stability of vehicle platoons has also attracted significant attention and has been considered the main cause of the spontaneously emerging oscillations. However, the relationship between these two seemingly related properties remains underexplored, leading to deficits in knowledge about the effect of microscopic controllers’ operations on macroscopic traffic characteristics. Filling this gap becomes important with the advent of driving automation and the possibility to make future road transport not only safer but also more efficient. This would however require setting proper requirements to their operations, able to ensure that they would generate an efficient traffic flow without limiting too much the freedom of the system developers.

Keywords: Traffic hysteresis; Vehicles’ String Stability; Traffic oscillations; Connected and Automated Vehicles (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1016/j.trb.2023.102785

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