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

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. The authors find that hysteresis takes place less frequently and in smaller amplitude than previously thought.


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  • Accession Number: 01492073
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 3 2013 12:30PM