USE OF MAIN CAUSE AND EFFECT APPARATUS IN THE ASSESSMENT OF THE IMPACT OF ENVIRONMENTAL FACTORS ON THE RUNNING COSTS OF TOYOTA HIACE BUSES OF FLEET OPERATIVE ENTERPRISE

Abstract

This study used the main and cause-and-effect apparatus to assess the environmental influences on the operational outlay of Toyota Hiace buses of the Fleet Establishment. The findings indicated that maintenance and replacement costs increase with increasing distance covered (km), whereas revenue generated decreases. Whereas Precipitation, Temperature, and Relative humidity had the maximum and lowest environmental effects for the maintenance costs, replacement costs, and income generated at [(1696.4, 28.40, 129.68), (1695.0, 28.40,129.68), (1620.0,28.50,156.90)] and [(1620.0,29.20,156.90), (1620.0, 29.20,156.90), (1695.0, 28.40, 129.68)] respectively. This disclosed that at the extreme environmental effect, the establishment would spend more on the upkeep and replacement of its vehicles, and generate less income, and vice versa. Consequently, it is suggested that the case study company should employ the leading cause and effect tool for the analysis of its automobiles to enhance proficient application, optimal utilization, and customize it to serve other functions.