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Transportation Letters
The International Journal of Transportation Research
Volume 13, 2021 - Issue 1
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Articles

Extraction and analysis of microscopic traffic data in disordered heterogeneous traffic conditions

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ABSTRACT

This paper discusses the development of a novel off-line vision-based system to obtain the naturalistic trajectory database of traffic streams from recorded video footages. The developed system uses a semi-automatic mechanism that provides manual interference for vehicle identification and classification and executes automated tracking of the identified vehicles. A trajectory database of typical disordered heterogeneous traffic stream was collected to evaluate the performance of the developed system. Results show that the developed system significantly enhances the process of trajectory data collection in such traffic conditions. The collected trajectory database is then used to investigate two crucial aspects that characterize the disordered heterogeneous traffic (i) interaction of different types of vehicles in the longitudinal and staggered following scenario, and (ii) lateral shift propensity of different types of vehicles. The analysis emphasizes the behavioral difference between different types of vehicles, and utility of the developed system to address the prevailing research gaps.

Acknowledgments

Authors are thankful for anonymous reviewers and their remarks which significantly improved this manuscript. The first author of this paper acknowledges the help of Ms. Anjali Dhabu and Mr. Omkar Pawar in various aspects of this study.

Disclosure statement

No potential conflict of interest was reported by the authors.

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