Abstract

This paper deals with the replacement issue of an Omni bus plying on Silchar–Guwahati route in India under government and private travel agencies and daily expenditure minimization of travel agencies. In this paper, effort has been given to study the age at which a bus should be replaced on the basis of various expenditure on it. It also attempts to calculate how to minimize daily expenditure of a bus service providing agency with some constraints. The post optimality of the L.P models will be studied at the end .We find the literature of it in various standard books and journals (Hartly, 1969; Harvey, 1969) as listed in the reference section. We find literature for formulation of LP models in (Sen and Som, 2008a, b, c; Sen, 2008d). In (Sen and Som, 2008a), models were developed to maximize daily profit of a service unit while in (Sen and Som, 2008b), a model was developed to minimize passenger fare.

Key words: Omnibus, scrap value, running cost, E-class.