Markiting

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Problem 6-17
Ten labs will be assigned to the circular layout shown. Recalling a similar layout’s congestion in the halls, the new lab manager has requested an assignment that will minimize traffic between offices. In addition, movement in the halls is restricted to a counterclockwise route. Develop a suitable layout using the following information.|

 |  | ------------------------------------------------- NUMBER OF TRIPS PER DAY BETWEEN DEPARTMENTS|
From| To| 1| 2| 3| 4| 5| 6| 7| 8| 9| 10|
1|  | –| 40| 51    | 26| 23| 9      | 20| 12| 11| 35| 2|  |  | –| 37    | 16| 27| 15      | 18| 18| 18| 36| 3|  |  |  | –     | 18| 20| 14      | 50| 18| 25| 36| 4|  |  |  |  | –| 35| 14      | 14| 22| 23| 31| 5|  |  |  |  |  | –| 24      | 14| 13| 21| 25| 6|  |  |  |  |  |  | –       | 17| 44| 42| 25| 7|  |  |  |  |  |  |  | –| 14| 33| 40| 8|  |  |  |  |  |  |  |  | –| 43| 35| 9|  |  |  |  |  |  |  |  |  | –| 47| 10|  |  |  |  |  |  |  |  |  |  | –| |

Location|                   Labs|
A|   |
B|   |
C|   |
D|   |
E|   |
F|   |
G|   |
H|   |
I|   |
J|   |
|
Problem 6-14
a.| Determine the placement of departments for a newly designed facility that will minimize total transportation costs using the data in the following tables. Assume that reverse distances are the same. The locations are shown in the grid. Use a cost of $1 per trip yard. (Omit the "$" sign in your response.)|

    
 |  | ------------------------------------------------- DISTANCE BETWEEN LOCATIONS (yards)|
From| To| A| B| C| D|
A|  | –| 40| 80| 70|
B|  |  | –| 40| 50|
C|  |  |  | –| 60|
D|  |  |  |  | –|
|

 |  | ------------------------------------------------- NUMBER OF TRIPS
PER DAY BETWEEN DEPARTMENTS|
From| To| 1| 2| 3| 4|
1|  | –| 10| 20| 80|
2|  |  | –| 40| 90|
3|  |  |  | –| 55|
4|  |  |  |  | –|
|

  |  |  |
  Location A # | Location B # | Location C # |
 | Location D # |  |
|

  Total Cost| $   |

b.| Suppose the company has revised its plans for the processes described in part a to accommodate technological process changes. Determine the placement of departments that will now minimize total travel cost. Use the distances shown in part a, but use the following new matrix of daily trips between departments. (Omit the "$" sign in your response.)|

 |  | ------------------------------------------------- NUMBER OF TRIPS
PER DAY BETWEEN DEPARTMENTS|
From| To| 1| 2| 3| 4|
1|  | –| 20| 20| 40|
2|  |  | –| 10| 50|
3|  |  |  | –| 60|
4|  |  |  |  | –|
|

  |  |  |
  Location A # | Location B # | Location C # |
 | Location D # |  |
|

  Total Cost| $   |

Problem 6-3
A manager wants to assign tasks to workstations as efficiently as possible, and achieve an hourly output of 4 units. The department uses a working time of 56 minutes per hour. Assign the tasks shown in the accompanying precedence diagram (times are in minutes) to workstations using the following rules:|

a.| In order of most following tasks. Tiebreaker: greatest positional weight.|

Work Station|   Tasks|
I|   |
II|   |
III|   |
IV|   |
|

b.| In order of greatest positional weight.|

Work Station| Tasks|
I|   |
II|   |
III|   |
IV|   |
|

c.| What is the efficiency? (Round your answer to 2 decimal places. Omit the "%" sign in your response. )|

   Efficiency|   %  |

rev: 03_15_2012

Problem 6-15
Eight work centers must be arranged in an L-shaped building. The locations of centers 1 and 3 are assigned as shown in the accompanying diagram.|

 |  | -------------------------------------------------...
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