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The conveyance of employees holds paramount significance for expansive corporations. Employees typically commute to their workplaces either via personal vehicles or through public transit. In this research endeavor, our role is that of a third-party entity entrusted with orchestrating the transportation of employees whose place of employment is situated within the grey zone. This zone exclusively permits the ingress of electric/hybrid vehicles and buses. We advocate for employees to adopt carpooling and furnish bus services for those who abstain from it. The primary objective of this research is to curtail the quantity of vehicles leased by the third-party entity, promote carpooling among employees, amplify employee contentment, and mitigate environmental degradation stemming from vehicular gasoline consumption. To decipher the model delineated in this study, the epsilon constraint method is proffered for petite-scale instances, while NSGA-II is introduced as a potent meta-heuristic technique tailored for large-scale scenarios. Computational trials corroborate that the models posited can be efficaciously harnessed by enterprises to pare down transportation expenditures.