A method to account for non-steady state conditions in measuring traffic hysteresis

作者:Ahn Soyoung*; Vadlamani Sravani; Laval Jorge
来源:Transportation Research Part C: Emerging Technologies , 2013, 34: 138-147.
DOI:10.1016/j.trc.2011.05.020

摘要

This paper investigates the hysteresis loops commonly observed in freeway traffic flow by analyzing the evolution of speed-spacing relationships as vehicles undergo stop-and-go oscillations. The measurement method is based on the kinematic wave model with variable wave speed to account for non-steady state conditions that arise during acceleration/deceleration. We find that hysteresis takes place less frequently and in smaller amplitude than previously thought. Published by Elsevier Ltd.

  • 出版日期2013-9