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Macroscopic Traffic Characterization Based on Distance Headway

Amir Iftikhar, Zawar H. Khan, T. Aaron Gulliver, Khurram S. Khattak, Irfan Ahmed

Abstract


Accurate traffic characterization is essential for congestion mitigation. In this paper, a traffic model is proposed that incorporates distance headway in the well-known Lighthill, Whitham, and Richards (LWR) model. Velocity is influenced by the headway distance between vehicles. When this distance is small, the velocity is low, and when it is large, the velocity is high. The proposed and LWR models are implemented in MATLAB, and the performance is evaluated for different values of distance headway. The results show that traffic with the proposed model evolves with smaller changes that are more accurate and realistic than with the LWR model.

 

Doi: 10.28991/CEJ-2024-010-12-016

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Keywords


Traffic Congestion; Macroscopic Model; Distance Headway; Explicit Upwind Difference Scheme.

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Full Text: PDF

DOI: 10.28991/CEJ-2024-010-12-016

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Copyright (c) 2025 Amir Iftikhar

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