9. Hamilton County Parks is planning to develop a new park and recreational area on a re-cently purchased 100-acre tract. Project development activities include clearing play-ground and picnic areas, constructing roads, constructing a shelter house, purchasingpicnic equipment, and so on. The following network and activity times (in weeks) arebeing used in the planning, scheduling, and controlling of this project:DHStartEIFinishBFGActivity | A B C D E F G H ITime966303032 263a. What is the critical path for this network?b. Show the activity schedule for this project.C. The park commissioner would like to open the park to the public within six monthsfrom the time the work on the project is started. Does this opening date appear to befeasible? Explain.Aс

Given data: Activity A B C D E F G H I Time 9 6 6 3 0 3 2 6 3

Answered: 9. Hamilton County Parks is planning to…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Consider Table 6-3. All duration estimates or estimated times are in weeks, and the networkproceeds from Node 1 to Node 8. (Note that you can easily change this table to createmultiple exercises.)a. Draw an AOA network diagram representing the project. Put the node numbers in circlesand draw arrows from node to node, labeling each arrow with the activity letter andestimated time.b. Identify all of the paths on the network diagram and note how long they are, using Figure 6-8as a guide for how to represent each path.c. What is the critical path for this project and how long is it?d. What is the shortest possible time needed to complete this project?
1.The chief engineer of firm XYZ is responsible for supervising the construction work of a road. He has identified the activities and their durations for each stage of operation. Activity Duration (days) Preceding activities A 5 - B 10 - C 1 - D 8 B E 10 B F 9 B G 3 A,D H 7 A,D I 4 F J 3 F K 5 C,J L 8 H,E,I,K M 4 CJ Draw a network diagram (AOA) for this road construction project. Which are the critical activities? How long the project will take?
The table below contains information about an environmental clean-up project in the township of Hiles. Shorten the project threethree weeks by finding the minimum-cost schedule. Assume that project indirect costs and penalty costs are negligible. Identify activities to crash while minimizing the additional crash costs. Activity Normal Time (weekweeks) Crash Time (weekweeks) Cost to Crash ($ per weekweek) Immediate Predecessor(s) A 55 44 300300 None B 77 44 5050 None C 77 66 300300 A D 77 66 250250 A E 11 11 long dash— B F 33 33 long dash— C, D G 55 44 200200 D, E H 44 22 200200 F I 22 22 long dash— G Part 2 Fill in the table below with the activity times after crashing to show the resulting schedule. (Enter your responses as…
Amanufacturer is designing a product layout for a new product production. It plans to use a production line for 8 hours per day in order to meet forecasted demand of 150 units per dayThe product requires 7 tasks in total. These tasks are namely, ABC, DE, Fand GrespectivelyTask A does not have any predecessor to start. To start Task B, it requires Task A to be completedStarting tasks C needs, the task B to be completed. Also starting task D needed task B to be completed. Task E can only start upon completion of Task C. Whereas starting task F needs the completion of both the tasks and E. Finally, starting task G needed, task F to be completed. The processing times for tasks, AB 3, C, D, E, F , and Gare are2.4,2.2,0.9, . 10.12. 1.8. are 1.5 minutes respectively. What should be the cycle time in minutes? .4.80 O2.67. c 4.56 d is the correct answer e3.20
An office complex is to be renovated. Before the job can be completed, various tradespeople and skilled workers must install their materials. The table for this problem describes the relationships between the activities that need to be completed. Activity Immediate Predecessors Time (days) A1 - 6 A2 A1 7 A3 A1 3 A4 A1 10 A5 A2 10 A6 A3, A4 4 A7 A4 8 A8 A4 5 A9 A5, A6, A7 7 A10 A8 6 a) Develop a project network for this problem. b) Determine the EST, EFT, LST, LFT, and slack for each activity. c) What is the critical path and project completion time? d) Submit your file
An office complex is to be renovated. Before the job can be completed, various tradespeople and skilled workers must install their materials. The table for this problem describes the relationships between the activities that need to be completed. Activity Immediate Predecessors Time (days) A1 - 6 A2 A1 7 A3 A1 3 A4 A1 10 A5 A2 10 A6 A3, A4 4 A7 A4 8 A8 A4 5 A9 A5, A6, A7 7 A10 A8 6 a) Develop a project network for this problem. b) Determine the EST, EFT, LST, LFT, and slack for each activity. c) What is the critical path and project completion time?
Humber Web Design Co. is organizing a new project to increase efficiency and improve relations with their clients. The project manager for this initiative has broken the project up into several parts as follows: Activity Activity Description Immediate Predecessor Activity time (days) A Identify Client Base ― 33 B Develop Client Prospectus ― 21 C Perform Design Analysis ― 35 D Program Back End A, B, C 47 E Program Front End A 13 F Project Consolidation D, E 11 (a) For the given project, fill in the nodes of the network diagram below. A E 33 13 Start B D F Finish Time 21 47 11 Time C 35 (b) Using the network diagram, fill in the table. Make sure that you put the values in the appropriate columns. Activity Earliest Start (ES) Latest…
1) The construction of a house is based on the following CP network Activity Predecessor Normal time (days) Normal Cost (dollars) Crash time (days) Crash cost (dollars) F __________ 4 100 2 150 G F 8 80 2 140 H G, F 2 40 1 60 I F 3 20 2 80 J G 5 80 3 140 K H, I 5 160 1 100 L J, K, I 6 120 2 240 a) Create a labelled network diagram. b) What is the % increase of project costs if the project is to be crashed by the 4 days. c) Crash the project by 4 days, showing the activities you would crash and it's associated cost to do so.
Consider the following TABLE Activity preceding activity Duration (days A - B - C A D C E B &C Required Discuss the rules for drawing networks and illustrate the above by drawing its network.
For the activity on arrow network information given below (activity durations are givenin the table under part b): a. Compute the earliest event occurrence time (TEj), the latest allowable eventoccurrence time (TLj), and the event slack (ESj) for all nodes/events. b. Compute the four schedule dates (ESDij, EFDij, LSDij, LFDij) and the floats(TFij, FFij) for all activities.
What is the difference between an activity-on-arrow (AOA)network and an activity-on-node (AON) network? Which isprimarily used in this chapter?
A project consisting of eight activities satisfies the following precedence constraints:Time ImmediateActivity (weeks) PredecessorsA 3B 5AC 1AD 4 B, CE 3BF 3 E, DG 2FH 4 E, Da. Construct a network for this project. (You should need only one pseudoactivity.)

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