Sustainable operations-oriented painting process optimisation in automobile maintenance service

Building a more sustainable society is an urgent requirement for todays service-oriented manufacturing enterprises, such as automobile maintenance firms. In automobile maintenance service, traditional painting process scheduling scheme usually only considers the profits of enterprises, ignoring the requirements of customers or other stakeholders. To address this gap and achieve sustainable operations of enterprises in the long term, this paper concentrated on the vehicle scheduling of painting process problem with the concern of the demands of managers, workers, customers, governments and non-government environmental protection organisations. This problem was formulated as a nonlinear 0-1 integer programming model to minimise makespan (MP), total pollutant emissions (TPE) and total customers perceived dissatisfaction (TCPDS). A genetic algorithm was designed to solve the model, and a practical case using data from both the information system and the survey was performed to test the performance of the proposed model and algorithm. Computational results revealed that the genetic algorithm performed well in terms of validity and stability. Pareto solutions demonstrated that optimising task sequences helped increase customers perceived satisfaction while improving the makespan of vehicle painting, decreased paint waste, and reduced worker health and safety risks. Some of the increases in the percentage of well-timed customer service reservations were catalysed by the method that combined tiered pricing, related to delivery times, the automobile painting efficiency, which improved customers perceived satisfaction. This paper also further guides managers to incorporate sustainable development into operations in service-oriented manufacturing enterprises.Funding Agencies|National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [71904021]; Humanities and Social Sciences Foundation of Ministry of Education of ChinaMinistry of Education, China [20YJA630079, 19YJAZH051]; Chunhui Plan of the Ministry of Education of the Peoples Republic of China [CQ2019001]; Planning Project of Philosophy and Social Science in Chengdu [2020ZXB10]; Project of Science and Technology (soft science research) in Chengdu [2020-RK00-00052-ZF]; Natural Science Foundation of Chongqing, ChinaNatural Science Foundation of Chongqing [cstc2020jcyj-msxmX0164]; Planning Project of Sichuan Normal University [SNU19J4Z2019-11]; Undergraduate Innovation and Entrepreneurship Training Program of Sichuan Normal University [202010636246, 202010636270]