Carlton Construction Is Supplying Building Materials for a New Mall

question 83

Essay

Carlton construction is supplying building materials for a new mall construction project in Kansas. Their contract calls for a total of 250,000 tons of material to be delivered over a three-week period. Carlton's supply depot has access to three modes of transportation: a trucking fleet, railway delivery, and air cargo transport. Their contract calls for 120,000 tons delivered by the end of week one, 80% of the total delivered by the end of week two, and the entire amount delivered by the end of week three. Contracts in place with the transportation companies call for at least 45% of the total delivered be delivered by trucking, at least 40% of the total delivered be delivered by railway, and up to 15% of the total delivered be delivered by air cargo. Unfortunately, competing demands limit the availability of each mode of transportation each of the three weeks to the following levels (all in thousands of tons):
The following is the LP model for this logistics problem.
What values would you enter in the Risk Solver Platform (RSP) task pane for the cells in this Excel spreadsheet implementation of this problem?
Objective Cell:
Variables Cells:
Constraints Cells:

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Definitions:

Increasing Activities

Engaging more intensively or extensively in actions or tasks to achieve specific goals or outcomes.

Scientific Management

A management theory developed by Frederick Taylor that emphasizes efficiency and productivity through the scientific study of tasks and worker behavior.

Variety of Tasks

Variety of tasks refers to having a diverse range of different activities or duties within a job role, often contributing to increased satisfaction and engagement at work.

Biorhythms

The study of cyclic patterns in biological activities and processes, suggesting that physical, emotional, and intellectual life phases follow regular patterns.