Faculty Publications

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    Multi-criteria Decision-making Approach for Selecting a Bridge Superstructure Construction Method
    (Springer Science and Business Media Deutschland GmbH, 2021) Upadhya, P.R.; Das, M.S.; Das, B.B.
    Selection of an effective construction method of bridge superstructure is critical to the success of the bridge project. Multiple criteria and the relative importance among them are involved in the process of decision-making. These criteria and their relative importance lead to vague and complex situation in the selection process. In order to tackle this complex situation, a mathematical methodology is required. Analytical Hierarchy Process (AHP) is a popular method that is used for solving Multi-Criteria Decision-Making (MCDM) problems. Every construction method of bridge superstructure has its own advantages and disadvantages. The challenge is to select the correct one for the prevailing circumstances. In this paper, the different methods of bridge construction are explained and are compared using their advantages, disadvantages and their suitability to different criteria and constraints associated with a bridge construction. The criteria weights and priorities are collected from experienced professionals of different point of view, i.e. Client, Designer and Contractor using questionnaire survey. Using this comparison, a decision support model is developed along with suitability ranking using AHP in order to simplify the process of selection of the appropriate method of bridge superstructure construction. © 2021, Springer Nature Singapore Pte Ltd.
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    India Post Service Facility Layout Design Selection and Evaluation Using MCDM Approach
    (Springer Science and Business Media Deutschland GmbH, 2023) Vadivel, S.M.; Sanjai, S.; Siri, S.; Sequeira, A.H.
    This study uses the AHP technique to assess and choose the best facility layout based on technical practices, work environment, and ergonomics factors. This study will be beneficial in determining ways to improve operational performance in light of facility layout changes. We initially developed six logical layouts based on the field survey, which were approved by all shop floor staff, managers, and postal administrations to be evaluated under production performance layout schemes. Six alternative layouts, three performance criteria, and 13 sub-criteria were taken into consideration in this Facility Layout Design (FLD) problem. The analysis of the FLD in shop floor postal layouts yielded amazing results. This empirical investigation was conducted in India's southernmost National Sorting Hub (NSH) Mysore, Karnataka. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
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    Modular Kitchen Layout Design Using AHP Method – An Indian Case Perspective
    (Springer Science and Business Media Deutschland GmbH, 2024) Vadivel, S.M.; Suganya, P.; Devanathan, C.; Sequeira, A.H.; Abhinav, A.
    This study uses the AHP technique to assess and choose the best facility layout based on cooking practices, work environment, and ergonomics (anthropometric) factors. This study will be beneficial in determining ways to minimize the cooking time in light of facility layout changes. We initially developed four logical layouts based on the survey, which were approved by all family members, neighbors, relations, friends, and working women in the apartment to be evaluated under various performance layout schemes. Four alternative layouts, three performance criteria were taken into consideration in this Facility Layout Design (FLD) problem. The analysis of the FLD was conducted in Park Avenue, Vijay Shanthi apartments, Chennai, Southern India. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
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    Enhancing the operational performance of mail processing facility layout selection using multi-criteria decision making methods
    (Inderscience Enterprises Ltd. editor@inderscience.com 29, route de Pre-Bois Case Postale 856, CH-1215 Geneva 15 CH-1215, 2020) Vadivel, V.; Sequeira, A.H.
    Generally, facility layout design (FLD) has a significant impact on the performance of a manufacturing or service industry which comes under multi-objective problem. Facility layout design is aimed to streamline the work flow and increasing the productivity. This paper attempts to incorporate multi-criteria decision making process (MCDM) methods to find the optimum layout to improve the operational performance through lean service, workplace environment and ergonomics approach. Layout design focuses on identification and elimination of waste (non-value added activities) and comfortable workplace environment with suitable ergonomics conditions in order to achieve the target production. The proposed methods are exemplified through practical applications in Indian postal manual speed post sorting facility layouts. In this case study, we have proposed three methods: analytical hierarchy process (AHP), technique for order preference by similarity to ideal solution (TOPSIS) and fuzzy TOPSIS. Empirical results are encouraging for implementing feasible methods in solving a layout design problem. © © 2020 Inderscience Enterprises Ltd.
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    Multi-Criterion Analysis of Cyclone Risk along the Coast of Tamil Nadu, India—A Geospatial Approach
    (Multidisciplinary Digital Publishing Institute (MDPI), 2023) Subbarayan, S.; Devanantham, D.; Kulithalai Shiyam Sundar, P.; Reddy, N.M.; Almohamad, H.; Al-Dughairi, A.A.; Al-Mutiry, M.; Abdo, H.G.
    A tropical cyclone is a significant natural phenomenon that results in substantial socio-economic and environmental damage. These catastrophes impact millions of people every year, with those who live close to coastal areas being particularly affected. With a few coastal cities with large population densities, Tamil Nadu’s coast is the third-most cyclone-prone state in India. This study involves the generation of a cyclone risk map by utilizing four distinct components: hazards, exposure, vulnerability, and mitigation. The study employed a Geographical Information System (GIS) and an Analytical Hierarchical Process (AHP) technique to compute an integrated risk index considering 16 spatial variables. The study was validated by the devastating cyclone GAJA in 2018. The resulting risk assessment shows the cyclone risk is higher in zones 1 and 2 in the study area and emphasizes the variations in mitigation impact on cyclone risk in zones 4 and 5. The risk maps demonstrate that low-lying areas near the coast, comprising about 3%, are perceived as having the adaptive capacity for disaster mitigation and are at heightened risk from cyclones regarding population and assets. The present study can offer valuable guidance for enhancing natural hazard preparedness and mitigation measures in the coastal region of Tamil Nadu. © 2023 by the authors.
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    Central bank digital currency adoption challenges- The case of an emerging nation
    (Elsevier Ltd, 2024) Alora, A.; Sahoo, P.; Sasidharan, A.
    This study presents a novel, thorough approach for central banks to identify and rate digital currency adoption obstacles. The study uses AHP and ANP to identify and prioritise CBDC adoption issues in two phases. The biggest hurdles identified are economic, technical, and financial. © 2023