Bus is a popular and common means of transport in Ethiopia. The structural strength andrnspeed is a fundamental concern. Unnecessary weight of the bus structure leads to reduction ofrnspeed, high fuel consumption and reducing the overall performance of bus.rnThe primary objective of this research is to improve the bus structure weight. Thernimprovement is carried out by analysing the structure for two main loading cases, bendingrnload and torsional stiffness. This study examines the stresses and deformation responses of arntypical bus structure during application of the load in service. A bus structure was modelledrnusing computer aided design (CAD) CATIA V5R16 software and exported to finite elementrnanalysis ANSYS 12 software and simulated by applying boundary conditions. The structurernweight improvement of the bus is made by reducing the size and thickness of metal used inrnthe structure. In this analysis a new model of the bus was made and analysed. Two loadingrncases were incorporated in the analysis. Bending load case was used to simulate the busrntravelling on smooth road and twisting moment is used to simulate a bus travelling on arnbumpy road. This re-modelled bus is again simulated by finite element analysis software andrnfound to be structurally safe. The simulation of the re-modelled bus was conducted using thernsame inputs used in the original model simulation. The remodelled result shows that thernstress and displacement results are safe.rnA simply supported overhanging beam model was made to validate the results obtained fromrnfinite element analysis simulation. Finally, cost analysis is carried out to compare the originalrnstructure cost with the improved. It is found that by reducing the size of the members used inrnthe bus structure the cost is reduced. The cost reduced in the considered company reachesrn520, 938.00 Birr annually.