Construction Project Scheduling And Control 3rd Edition Saleh A. Mubarak - Solutions

What are the main objectives of materials management?
Why does materials management differ in principle from labor and equipment management? Briefly explain the concept of materials management.
Assume that you are the scheduler for a large project. You work for the construction manager (CM), whose function is to manage the project and to coordinate the work of the subcontractors involved (there is no general contractor). You require that each subcontractor submit his or her schedule to
With regard to resource leveling, how does the role of a scheduler differ between working for a general contractor who does almost all of his or her work with his or her own workforce and working for a general contractor who subcontracts everything?
In exercise 10, you are given only six laborers (rather than eight). Write a memo to the project manager discussing the situation and giving him or her the available choices (along with the consequences).
In exercise 11, can you improve the resource use by making the resources driving and the activities interruptible?
In exercise 11, can you improve the resource use by making the resources driving(i.e., they control the durations of activities)? Activities are still contiguous.
In exercise 10, can you improve the resource use by making the resources driving and the activities interruptible?
In exercise 10, can you improve the resource use by making the resources driving(i.e., they control the durations of activities)? Activities are still contiguous.
In exercise 9, can you improve the resource use by making the resources driving and the activities interruptible?
In exercise 9, can you improve the resource use by making the resources driving(i.e., they control the durations of activities)? Activities are still contiguous(noninterruptible).
In the following network, manually level your resources with a maximum of eight laborers per day. Also, improve the daily resource use (start low, increase the resource use gradually until it peaks around the middle of the project, and then gradually decrease it toward the end of the
In the following network, try to reduce the maximum resource need to less than eight laborers per day. Can you do this? If not, can you manually shift activities so that you improve the daily resource use? (Try to start low, increase the resource use gradually until it peaks around the middle of
In the following network, manually level your resources so that you may not use more than nine laborers per day at any time.Activity Duration (Days) IPA Laborers A 2 – 3 B 4 A 2 C 6 A 4 D 9 A 3 E 5 B 4 F 7 B, C 2 G 3 D, E, F 4
Two methods are used to assign a budget to an activity in the schedule. Explain both methods and mention the pros and cons of each method.
Can you level resources in a multiproject environment? If so, what are the factors that will influence your decision?
Discuss resource leveling in a multiproject environment.
Do all resources have to be leveled? Why or why not?
Why should you level resources in construction projects?
What is resource leveling?
What is resource allocation?
In the context of construction scheduling, what do we mean by resources?
Give an example for each of the following:a. Start-restricted floatb. Finish-restricted floatc. Double-restricted floatd. Unrestricted float
Look at your solution to the previous exercise. Is it a unique solution, or can you achieve the same result with different logic?
A subcontractor must do the following:a. Framing (5 days)b. Drywall installation (4 days)c. Drywall finish and paint (3 days)Assuming he wants to make sure each activity finishes as least 1 day after its predecessor has finished, draw these three activities in a precedence diagram and calculate how
Give real-life (not necessarily construction) examples for the following:a. An SS (start-to-start) relationship without lag. No FF (finish-to-finish) relationship is required.b. An SS relationship with lag. No FF relationship is required.c. An SS and FF combination relationshipd. An FF
Prove that using interruptible activities in the following project allows the project to finish 5 days earlier than if the activities were contiguous.Activity Duration IPA Type Rela Lag ES EF LS LF TF FF A 7 –B 6 A SS 3 A FF 4 C 2 B SS 1 B FF D 6 C SS C FF 4 E 10 D SS 3 D FF 2 aIf the
Repeat exercise 12 using contiguous activities.
Repeat exercise 11 using contiguous activities.
Repeat exercise 10 using contiguous activities.
From the following table, draw the precedence network, perform the CPM calculations, and complete the table entries, assuming interruptible activities.Activity Duration IPA Type Rela Lag ES EF LS LF TF FF A 5 –B 7 A SS 2 C 8 A D 10 A SS 3 FF E 4 B FF 2 F 6 C, D G 2 E, F aIf the relationship type
From the following table, draw the precedence network, perform the CPM calculations, and complete the table entries, assuming interruptible activities.Activity Duration IPA Type Rela Lag ES EF LS LF TF FF A 4 –B 3 –C 8 A SF D 7 A, B E 6 D SS 3 F 3 D G 5 F SS 2 F FF aIf the relationship type is
From the following table, draw the precedence network, perform the CPM calculations, and complete the table entries, assuming interruptible activities.Activity Duration IPA Type Rela Lag ES EF LS LF TF FF A 3 –B 5 A SS 3 C 2 A D 6 B FF CaIf the relationship type is not mentioned, it is finish to
Mention examples in which using fast-tracking is bad, good, or a “must” option.
Define a fast-track operation. Briefly discuss its pros and cons.
What does the following relationship mean?a. Activity A can start 2 days before the start of activity B.b. Activity B can start 2 days after the completion of activity A.c. Activity B can start 2 days before the completion of activity A.d. Activity B has to start at least 2 days before the
What does the following relationship mean?a. Activities A and B must start simultaneously, but B must finish exactly 2 days after the finish of A.b. Activity B can start after the start of A but must finish at least 2 days before the finish of A.c. Activity B can start before the start of A but
What does the following relationship mean?a. Activity B must finish exactly 2 days after the finish of A.b. Activity B can finish at least 2 days after the finish of A.c. Activity B can finish at most 2 days after the finish of A.d. None of the above
What does the following relationship mean?a. Activity B must start exactly 3 days after the start of A.b. Activity B can start at least 3 days after the start of A.c. Activity B can start at most 3 days after the start of A.d. None of the above
Give a practical example for each of the following:a. Start-to-start (SS) relationship onlyb. Finish-to-finish (FF) relationship onlyc. Combination SS and FF relationship
What is the stair-type relationship? What is the advantage of precedence diagrams over it? Draw a network for a roofing job (install trusses, install sheathing, install felt, install shingles), using each method (i.e., draw two diagrams, one for each method).
Explain the main differences between the standard node diagram (covered in Chapter 4) and precedence diagrams.
What does the following relationship mean?a. Activity A can start 2 days before the start of activity B.b. Activity B can start 2 days after the completion of activity A.c. Activity B can start 2 days before the completion of activity A.d. Activity B has to start at least 2 days before the
What does the following relationship mean?a. Activities A and B must start simultaneously, but B must finish exactly 2 days after the finish of A.b. Activity B can start after the start of A but must finish at least 2 days before the finish of A.c. Activity B can start before the start of A but
What does the following relationship mean?a. Activity B must finish exactly 2 days after the finish of A.b. Activity B can finish at least 2 days after the finish of A.c. Activity B can finish at most 2 days after the finish of A.d. None of the above
What does the following relationship mean?a. Activity B must start exactly 3 days after the start of A.b. Activity B can start at least 3 days after the start of A.c. Activity B can start at most 3 days after the start of A.d. None of the above
Give a practical example for each of the following:a. Start-to-start (SS) relationship onlyb. Finish-to-finish (FF) relationship onlyc. Combination SS and FF relationship
What is the stair-type relationship? What is the advantage of precedence diagrams over it? Draw a network for a roofing job (install trusses, install sheathing, install felt, install shingles), using each method (i.e., draw two diagrams, one for each method).
Explain the main differences between the standard node diagram (covered in Chapter 4) and precedence diagrams.
Create a WBS for building a house. Use four levels of details and provide activity codes for each breakdown element.
What is the main reason for the overuse of date constraints? How do you minimize such overuse?
Repeat exercise 9, assuming activities E, F, and L are performed by the same crew and the contractor has only one crew.Will the project completion date be delayed?If yes, by how many days?
Repeat exercise 8 with an imposed constraint on activity F: “start on or after day 18.” What activities are impacted, if any?
If one activity in exercise 7 can be called a hub, which one will you choose? Why?
Repeat exercise 4, assuming activities F, G, and I are performed by the same crew and the contractor has only one crew.Will the project completion date be delayed?If yes, by how many days?
Repeat exercise 6 with an imposed constraint on activity F: “start on or after day 15.”
Repeat exercise 5 with an imposed constraint on activity F: “finish on day 18.”
Repeat exercise 4 with an imposed constraint on activity D: “start on or after day 10.”
Repeat exercise 12 with an imposed finish date of 25 and then 34 days.
Repeat exercise 11 with an imposed finish date of 22 and then 28 days.
Repeat exercise 9 with an imposed finish date of 35 and then 44 days.
Repeat exercise 8 with an imposed finish date of 29 and then 36 days.
Repeat exercise 7 with an imposed finish date of 35 and then 40 days.
Repeat exercise 6 with an imposed finish date of 25 and then 32 days.
Repeat exercise 5 with an imposed finish date of 26 and then 35 days.
Repeat exercise 4 with an imposed finish date of 18 and then 24 days.
Repeat exercise 3 with an imposed finish date of 15 and then 20 days.
Repeat exercise 2 with an imposed finish date of 23 and then 29 days.
Repeat exercise 1 with an imposed finish date of 16 and then 21 days.
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA Lag ES EF LS LF TF FF A 5 –B 6 A C 4 A 3 D 5 A E 9 B F 7 B 2 CG 6 C H 8 C D 4 I 3 D J 7 E, G F 2 K 4 F, G, H L 1 H 3 IM 2 K, L
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA Lag ES EF LS LF TF FF A 4 –B 9 –C 6 A D 4 A B 2 E 4 B F 2 B, C G 6 D E 3 H 3 F, G
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA Lag ES EF LS LF TF FF A 5 –B 6 A C 4 A 3 D 5 A E 3 B F 2 C, B
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 5 –B 7 A C 10 A D 5 A E 9 A F 6 B G 4 B, C H 8 B, C, D I 2 C, D J 5 E K 8 F L 9 E, G M 7 F, G, H N 3 F, G, H, I O 6 H, I P 4 M,
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 3 –B 10 A C 7 A D 6 B E 5 B, C F 4 C G 2 D H 4 D, E I 10 E J 6 E, F K 4 G, H, I L 2 H, I M 1 J, L
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 3 –B 5 –C 6 A D 9 A, B E 4 A, B F 6 B G 5 C, D H 12 D, E I 7 D, E, F J 9 E K 10 G, H, I L 6 I, J M 4 G, I N 2 K
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 2 –B 7 A C 10 A D 5 A E 4 B F 4 B, C G 3 C H 6 C, D I 3 D J 6 E, F, G K 8 F, G, H L 5 H, I M 3 K, L
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 6 –B 2 –C 9 –D 4 A, B E 7 B F 5 D G 10 D, E H 8 C, F, G I 3 C, G J 2 H, I
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 6 –B 2 –C 8 A D 5 A, B E 3 B F 6 D, E G 5 C, D H 2 F, G
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 2 –B 4 A C 6 A D 9 A E 5 B F 7 B, C G 3 D, E, F
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES LS EF LF TF FF A 7 –B 10 –C 15 A D 8 A, B E 4 C, D
For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table.Activity Duration IPA ES EF LS LF TF FF A 3 –B 7 A C 4 A D 5 B E 8 B, C
Convert the following node network into an arrow network.
Find and correct the errors and redundancies in the following arrow network.
Convert the following arrow network into a node network.
Draw both the arrow network and the node network for the following project:Activity IPA Activity IPA A – L E, G B A M F, G, H C A N F, G, H, I D A O H, I E A P M, N, O F B Q K, L G B, C R L, M H B, C, D S J, P I C, D T Q J E U Q, R K F V T, U, S
Draw both the arrow network and the node network for the following project:Activity IPA Activity IPA A – H D, E B – I D, E, F C A J F D A, B K C, H, I E A, B L I, J F B M I G C N G, K
Draw both the arrow network and the node network for the following project:Activity IPA Activity IPA A – H C, D B A I D C A J E, F, G D A K F, G, H E B L H, I F B, C M K, L G C
Draw both the arrow network and the node network for the following project:Activity IPA Activity IPA A – F D B – G D, E C – H C, F, G D A, B I C, G E B J H, I
Draw both the arrow network and the node network for the following project:Activity IPA A –B A C A D A E B F B, C G D, E, F
Draw both the arrow network and the node network for the following project:Activity IPA A –B –C A D A, B E C, D
Draw both the arrow network and the node network for the following project:Activity IPA A –B A C A D B E B, C
Did logic networks and the critical path method replace bar charts as a scheduling technique? Explain your answer.
What are the main advantages of networks over bar charts? How did bar charts manage to stay popular despite the advantages of networks?
What are time-scaled logic diagrams? Discuss their practicality.
What is the main advantage of arrow networks over node networks? How was it overcome?
What are the main advantages of node networks over arrow networks?
Arrow networks have another name; what is it? What is the reason for this name?
What are the differences between arrow and node networks?
What does a line mean in a node diagram?
What does a node mean in a node diagram?

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Construction Project Scheduling And Control 3rd Edition Saleh A. Mubarak - Solutions

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