A manufacturing plant requires 20,000 units per day of all parts. Part numbers 1 through 3 are listed with their respective routings below. The parts weigh 2kg, 6kg and 4 kg, respectively. Each machine is identified with a letter (R, A, B, C, D, E, S). R is the incoming material location called Receiving and S is the shipping end of the line (these two stations have to keep their position). (20 points)

Part # Routing (Operation Sequence)

1RABDCS

2REBACS

3RCDABS

1. Create a from-to-chart based on the initial setup (R, A, B, C, D, E, S).
2. Calculate the layout efficiency
3. Change layout to improve efficiency
4. Calculate new layout's efficiency