An s-shaped three-parameter (S3) traffic stream model with consistent car following relationship

Qixiu Cheng, Zhiyuan Liu, Yuqian Lin and Zhou, Xuesong (Simon)

Transportation Research Part B: Methodological, 2021, vol. 153, issue C, 246-271

Abstract: In this study, a new s-shaped three-parameter (S3) traffic flow model is proposed to represent the relationships between three fundamental variables (i.e., flow, speed, and density) in highway traffic. An s-shaped speed-density function is proposed to capture the speed-density relationship under a wide range of possible densities. A consistent car-following model was derived in terms of the proposed s-shaped speed-density function. Both the S3 macroscopic model and the derived microscopic car-following model were calibrated using real-world traffic data.

Keywords: S3 traffic flow model; Traffic flow theory; Speed-density function; Car following model (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (12)

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DOI: 10.1016/j.trb.2021.09.004

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