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    Assignment Time Cost Trade-Off

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    ASAD ULLAH
    This document contains 8 questions related to time-cost tradeoff analysis for construction projects. The questions provide schedule and cost data for various activities and ask to determine optimal project durations, minimum project costs, and develop time-cost curves. Indirect costs per day or week are also provided to analyze the tradeoff between time and cost for crashing project durations.

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    Assignment Time Cost Trade-Off

    Uploaded by

    ASAD ULLAH
    34 views4 pages
    This document contains 8 questions related to time-cost tradeoff analysis for construction projects. The questions provide schedule and cost data for various activities and ask to determine optimal project durations, minimum project costs, and develop time-cost curves. Indirect costs per day or week are also provided to analyze the tradeoff between time and cost for crashing project durations.

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    This document contains 8 questions related to time-cost tradeoff analysis for construction projects. The questions provide schedule and cost data for various activities and ask to determine optimal project durations, minimum project costs, and develop time-cost curves. Indirect costs per day or week are also provided to analyze the tradeoff between time and cost for crashing project durations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    34 views4 pages

    Assignment Time Cost Trade-Off

    Uploaded by

    ASAD ULLAH
    This document contains 8 questions related to time-cost tradeoff analysis for construction projects. The questions provide schedule and cost data for various activities and ask to determine optimal project durations, minimum project costs, and develop time-cost curves. Indirect costs per day or week are also provided to analyze the tradeoff between time and cost for crashing project durations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 4

    COLLEGE OF ENGINEERING & TECHNOLOGY

    Department :Construction and Building Engineering


    Course : Construction Project Manag. II Course No: CB 519
    Lecturer : Prof. Ahmed Elyamany
    T.Assistant : Eng. M. Khaled "Fall 2016"

    Time Cost Trade-Off Assignment


    QUESTION (1):

    Assume the following project data given in the table. It is required to crash the project duration from its original
    duraon to a final duraon of 110 days. Assume daily indirect cost of LE 100

    QUESTION (2)

    The durations and direct costs for each activity in the network of a small construction contract under both
    normal and crash conditions are given in the following table. Determine the optimum duration of the contract
    assuming the indirect cost is LE 125/day.
    QUESTION (3)

    The following table gives the activities involved in a pipeline contract. The duration and cost data are also given.
    The indirect cost for the contract is LE120/day. Calculate the minimum cost of the work corresponding to
    contract duraon of 102 days.

    QUESTION (4):

    Cost and schedule data for a small project are given below. Assume an indirect cost of LE 200/day. Develop the
    time-cost curve for the project and determine the minimum contract duration
    QUESTION (5):

    The following information is for a small construction project


    a) Reduce the project duration to the possible duration with the minimal increase in project cost
    b) If the indirect cost is 1800 L. E/ week, calculate the total project cost at normal me, and crashed
    time
    c) Draw curves for direct cost, indirect cost and total project cost vs. time, what is the optimum
    project duration

    Normal duration Crashed duration Cost slope


    Activity Depend on
    (weeks) (weeks) (L.E/week)
    A ---- 3 2 850
    B A 5 4 1000
    C A 4 2 2000
    D A 6 4 4000
    E B 4 4 -----
    F C 5 5 -----
    G D,C 6 4 1200
    I E 5 3 1500
    J E,F 8 4 1400

    QUESTION (6):

    The following information is for a small construction project


    a) Reduce the project duration to the possible duration with the minimal increase in project cost
    b) If the indirect cost is 2000 L. E/ week, calculate the total project duraon at normal me
    c) Draw curves for direct cost, indirect cost and total project cost vs. time, what is the optimum
    project duration
    Normal Crashed
    Normal Cost Crashed cost
    Activity Depend on duration duration
    (L.E) (L.E)
    (weeks) (weeks)
    A --- 3 2 1000 4000
    B --- 6 5 1200 1800
    C A,B 5 3 3000 4000
    D A 5 3 2000 5000
    E D 4 3 4600 5000
    F E 6 4 7100 8000
    G D, F 4 2 10,000 16,000
    H C,G 4 2 1000 9000
    K H 8 5 2500 4000
    QUESTION (7):

    The following informaon is for a small construcon project. If the indirect cost is 3000 L.E/week, Contract
    period is 75 weeks, the penalty for late submission is 2000 L.E/week
    Required:
    a) Calculate the total project duration at normal time.
    b) Reduce the project duration to the smallest possible duration with the minimal increase in project
    cost.
    c) Draw curves for direct cost, indirect cost and total project cost vs. time, what is the optimum
    project duration.
    Normal Crash
    Activity Pred. Normal Cost Crash Cost
    duration duration
    A - 10 5 1000 2000
    B S 20 5 1000 3000
    C - 20 5 1000 6000
    D F 10 5 1000 4000
    E K 20 5 1000 1500
    F T,B 20 5 1000 4000
    G E 10 5 1000 2000
    Y X,H 20 5 1000 1150
    K C 20 5 1000 10000
    H E 10 10 1000 1000
    R G 10 5 1000 6000
    S A 20 5 1000 2500
    T V 15 5 1000 3500
    X T,K 20 15 1000 3500
    V A 20 15 1000 3500

    QUESTION (8):

    The following information is for a small construction project


    a) Draw activity on node diagram, define project total duration.
    b) Reduce the project duration to the smallest possible duration with the minimal increase in project
    cost, what is the new project duration and how much is the increase in final project cost.
    Normal duration Crashed duration Cost slope
    Activity Depend on
    (weeks) (weeks) (L.E/week)
    A ---- 3 2 850
    B A 5 4 1000
    C A 4 2 2000
    D A 6 4 4000
    E B 4 4 -----
    F C 5 5 -----
    G D,C 6 4 1200
    I E 5 3 1500
    M E,F 8 4 1400

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