Experimenting on the real system

Assignment Help Strategic Management

Reference no: EM13551874

Case Study - Speedy Tires

Salem, the Transport Manager at Speedy Tires, has just returned from a meeting with the Managing Director. Apparently the police received complaints from local residents about the parking of heavy trucks in the side streets near the factory. This is occurring because there is insufficient room in the depot for trucks to wait to be loaded/unloaded.

To reduce the congestion it has been suggested a second bay be built. However, before this is done a simulation of the current system is to be developed and you have been asked to take on this project.

Your first task was a data collection exercise, and this gave you the following information:

1. The depot is open from 08:00 to 18:00 Sundays to Thursdays.

2. Trucks require either loading or unloading (not both).

Type of Service	Frequency (%)
Loading	70
Unloading	30

3. The frequency distribution of the loading/unloading operations found by timing a large number of trucks were shown in the following tables.

Loading Time (min)	Frequency (%)
0 to under 30	20
30 to under 40	35
40 to under 50	22
50 to under 60	15
60 to under 70	8

Unloading Time (min)	Frequency (%)
0 to under 30	30
30 to under 40	40
40 to under 50	25
50 to under 60	4
60 to under 70	1

The frequency distribution of the inter-arrival time; that is, the time between successive arrivals, was shown in the following table.

Inter-arrival Time (min)	Frequency (%)
0 to under 10	15
10 to under 20	40
20 to under 30	30
30 to under 40	5
40 to under 50	5
50 to under 60	3
60 to under 70	2

You have also made the following assumptions:

4. A second bay would be used like the first, that is, loading and unloading.

5. A single queue of trucks would form and a truck could use either bay on a first-come, first-served basis.

Required:

6. Explain why simulation is a better method than experimenting on the real system for this problem.

7. Using the random numbers which will be e-mailed to each group separately, manually simulate the depot operations with one bay and find the average waiting time of the 10 trucks?DO NOT USE EXCEL.

8. Repeat the simulation using 2 bays.

Reference no: EM13551874

Questions Cloud

Evaluate how much work is done in each cycle : An engine with an output of 300 W has an efficiency of 35.0 %. It works at 13.00 cycles/s. How much work is done in each cycle

Find the amount of work the object does to bring the truck : A 900 Kg truck is driving at 45 m/s when it hits a large soft object and becomes embedded with it. Find the amount of work the object does to bring the truck to a stop

The surface of the sun has a temperature : The surface of the Sun has a temperature of 5500 C and the temperature of deep space is 3.0 K. Find the entropy increase produced by the Sun in one day, given that it radiates heat at the rate of 3.80x10^26 W.

What is the change in kinetic energy of the block : What is the change in kinetic energy of the block?

Experimenting on the real system : Explain why simulation is a better method than experimenting on the real system and simulate the depot operations with one bay and find the average waiting time of the 10 trucks.

Determine the relative velocity of the car : car A is moving east at a speed of 40mps relative to the ground. car B is moving west at 50mph relative to the ground. what is the relative velocity (speed and direction) of car B

An air conditioner is used to keep the interior of a house : An air conditioner is used to keep the interior of a house at a temperature of 20 C while the outside temperature is 35 C. If heat leaks into the house at the rate of 12 kW, and the air conditioner has the efficiency of a Carnot engine, what is the m..

What average force did the engine exert : What work must a diesel engine in an 18.000kg truck do to increase its speedfrom 30. m/s to 40. m/s in 5.0 seconds? What average force did the engine exert

User Account

All Pages