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Transportation Letters
The International Journal of Transportation Research
Volume 16, 2024 - Issue 1
124
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Research Article

Calibration and evaluation of higher order continuum model for non- lane based mixed traffic environment

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Pages 89-102 | Received 24 Mar 2022, Accepted 16 Dec 2022, Published online: 28 Dec 2022
 

ABSTRACT

.The present study aims to calibrate a novel multi-class non-lane-based continuum traffic flow model by applying advanced global search optimization algorithms such as Hybrid Search (Combination of genetic algorithm and Nelder Mead) and Generalized Pattern Search. To represent vehicular behavior in non-lane-based mixed traffic environment, the new continuum model is deduced from two-sided lateral gap car following theory along with few empirical observations. The newness of the selected model is that it mimics complex overtaking behavior of vehicles, effect of slow-moving vehicles on traffic stream and driver’s anticipation behavior. The search algorithms considered in this study have been tested and compared using the real-world data. From the analysis, it is observed that the proposed algorithms are more accurate in minimizing the cost function whereas convergence speed is also found to be better. The calibrated parameters are validated using platoon dispersion characteristics of vehicles and alternative transport policy measures.

Disclosure statement

No potential conflict of interest was reported by the author(s).

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