A firm of four departments has the following trip matrix and current block plan of all departments.
Trips Between Departments
Department A B C D
A -- 14 6 9
B -- 7 16
C -- 2
D --
A B
D C
a) What is the weighted-distance score for the current layout? (Assume rectilinear distance and that the distance between departments A and B is one unit of distance.)
b) Develop a better layout. What is its total weighted-distance score?