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Multi-criteria group decision-making for evaluating efficient and smart mobility sharing systems using Pythagorean fuzzy rough numbers

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Abstract

Shared mobility initiatives offer real possibilities to overcome problems such as traffic congestion, air pollution, and natural resource depletion while uniting city residents in a more connected and vibrant atmosphere. This study outlines four innovative and sustainable urban mobility sharing models: electric vehicle \(({{\mathbb{E}}{\mathbb{V}}}),\) autonomous electric vehicle \(({\mathbb{AEV}}),\) electric scooter \(({{\mathbb{E}}{{\mathbb{S}}}}),\) and electric bike \(({{\mathbb{E}}{\mathbb{B}}}),\) all in an effort to promote the ethos of sustainability and shared transportation. By rigorously applying the proposed methodology, we aim to identify optimal transportation solutions that are in harmony with the city’s unique needs and characteristics. Multi-criteria group decision-making is largely dependent on the personal opinions of the experts themselves, which adds an element of subjectivity as well as ambiguity and can influence the preciseness of the outcomes. Pythagorean fuzzy sets manage uncertainty but struggle with subjectivity among experts, while rough sets offer a robust mathematical framework for handling vague and subjective information. The integration of fuzzy and rough methods in Pythagorean fuzzy rough numbers yields a powerful representation of uncertainty that covers the flexibility of fuzzy numbers within adaptive bounding intervals. In multi-criteria decision-making, the Entropy and MARCOS methods have merged as highly effective in evaluating criterion weights and ranking alternative solutions, respectively. Our research aims to advance the field of decision-making by introducing a novel approach that combines Pythagorean fuzzy rough numbers with Entropy and MARCOS methods to create a more comprehensive decision-making model than existing frameworks. We present the Pythagorean fuzzy rough Entropy-MARCOS method (PFR-Entropy-MARCOS) to solve the challenges of a sustainable transportation system in Belgrade, the capital city of Serbia. Through careful application and comparison with other decision-making processes, the method demonstrates remarkable reliability in producing insightful results. This study also involves sensitivity analysis to increase the richness of our findings.

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Muhammad Akram: concept, design, analysis, writing, and revision of the manuscript. Sadaf Zahid: concept, design, analysis, writing, and revision of the manuscript. Ahmad N. Al-Kenani: concept, design, analysis, writing, and revision of the manuscript.

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Correspondence to Muhammad Akram.

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Akram, M., Zahid, S. & Al-Kenani, A.N. Multi-criteria group decision-making for evaluating efficient and smart mobility sharing systems using Pythagorean fuzzy rough numbers. Granul. Comput. 9, 50 (2024). https://doi.org/10.1007/s41066-024-00466-6

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