REPAIR AND MAINTENANCE COST PREDICTION MODEL FOR STEYR URSUS TRACTORS USED IN SOLID HOUSEHOLD WASTE (SHW) COLLECTION AND DISPOSAL
Publication Date : 01/02/2014
A standard model was developed for the prediction of repair and maintenance costs of Steyr Ursus tractors used for solid household waste (SHW) collection and disposal in Kano State of Nigeria. The model was derived based on data collected over a period of eight years from Refuse Management and Sanitation Board (REMASAB), Kano- Nigeria. The model predicts repair and maintenance costs as a function of tractor cumulative use in hours. Among the five models (linear, logarithmic, quadratic, power and exponential) produced through regression analysis, the quadratic model (R2 = 0.81) having the highest coefficient of correlation is adjudged as the best fit for managing the tractors under the operation being used for.
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