calculate please

Your company is considering buying Caterpillar 745 ADT trucks. With reference to the lecture material, what ramp width will you recommend should be used? Motivate your answer by reference to Table 5.3 in the lecture material. Show all calculations and dimensions. [15%] The layout and dimensions of ramp switch-backs would also form part of the standards of a mine. These will be dependent on the size of the trucks, the OEM specified minimum turn radius, the mine's safety requirements, etc. Curve design and layout can greatly influence safety and productivity of a haul operation