Acme Machine Is a Job Shop That Makes Specialty Parts

Acme Machine is a job shop that makes specialty parts for the airline industry. Figure #1 below shows the block plan for key manufacturing operations in its current facility. Acme believes there may be a way to reduce the total distance traveled between departments. Consider the two revisions that have been suggested, based on the closeness matrix shown below the block plans. The aisles are shown by the dotted lines in Figure 1.


-Use the information in Figure K.1. If travel between departments is restricted to the aisles shown in Figure 1, what is the total weighted-distance (wd) score for the block plan shown in Figure 1?

A) less than or equal to 30
B) greater than 30 but less than or equal to 60
C) greater than 60 but less than or equal to 90
D) greater than 90