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RETRACTED ARTICLE: Motorized Level of Service Classification for Urban Uncontrolled Intersections

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This article was retracted on 11 August 2021

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Abstract

Service and total delay are considered for classifying MLOS and intersections, respectively. GPS is used to collect travel time and speed data for turning movements that are transformed into average delay values. Thirteen junctions from eight different cities in India form the dataset. Divisive followed by agglomerative clustering (DAC-HAC) algorithm is applied as a two-step process for obtaining the service and total delay ranges. Validation of clusters is performed based on the Davies-Bouldin score, Calinski-Harabasz index, and Silhouette gaps. Based on DAC-HAC, uncontrolled intersections are classified into six categories (Cat-I, II, III, IV, V, and VI). Results indicate MLOS classes “D”, “E” and “F” have significantly higher service delay ranges as compared to Highway capacity manual “control” delay ranges indicating mixed traffic conditions. Most of the uncontrolled intersections under mixed traffic fall under Cat-IV, V, and VI, having higher total delay ranges (> 60 s/ vehicle/ approach). Finally, validation of the clustering results is done for geometric and roadside environmental features.

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Acknowledgments

The author would like to express their sincere gratitude to all the state governmental agencies and also to their affiliated institute for providing the necessary and pertinent permissions regarding the collection of intersection specific data used to conduct the present study.

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Authors and Affiliations

  1. Department of Civil Engineering, MANIT, Bhopal, India

    Suprabeet Datta, Siddhartha Rokade & Sarvesh P. S. Rajput

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  1. Suprabeet Datta
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  2. Siddhartha Rokade
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  3. Sarvesh P. S. Rajput
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Correspondence to Suprabeet Datta.

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This article has been retracted. Please see the retraction notice for more detail: https://doi.org/10.1007/s13177-021-00265-2"

Appendix

Appendix

Table 5 Validation of DAC-HAC MLOS and uncontrolled intersection classification under varied traffic and road environmental situations for the present study
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Datta, S., Rokade, S. & Rajput, S.P.S. RETRACTED ARTICLE: Motorized Level of Service Classification for Urban Uncontrolled Intersections. Int. J. ITS Res. 19, 199–213 (2021). https://doi.org/10.1007/s13177-020-00238-x

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  • DOI: https://doi.org/10.1007/s13177-020-00238-x

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