International Infrastructure Project Cost Estimating Work Breakdown Paul Hewitt, International Project Estimating Limited Introduction Construction Cost Estimating Work Breakdown Structure (WBS) The term WBS has become a common term in all fields related to Cost Engineering including Construction Cost Estimating, Scheduling and Project Cost Control. A well defined WBS is the backbone of good Construction Estimating Software and can take several forms including the breakdown of items within an estimate, the layout of groups within a schedule or the rollup of accounts within a cost report. It usually starts with a client’s desire to breakdown a tender into definable pay items, followed by the project manager’s wish to schedule activities of …show more content…
The current CSI MasterFormat ™ 2004 Edition [1] comes closest to covering all the scope of work found in the construction of Building Facilities and Site Work. It falls short in addressing the unique requirements of estimators, schedulers and cost engineers in identifying all phases of work included in major Infrastructure work such as Build Own and Transfer (BOT) projects. This Standard Work Breakdown attempts to format the project into a multi-level WBS suited to estimate, schedule, track cost and measure performance on international infrastructure projects. The breakdown is also designed to facilitate the data transfer of a standard work breakdown between common estimating, scheduling and cost control software applications. The International Infrastructure Project Work Breakdown Structure (WBS) The following paragraphs outline the various sub-projects and phases within the Civil Infrastructure WBS. The Sub-Projects within a Civil Infrastructure Project Life Cycle Traditional work breakdown structures in the past have only identified the Construction Divisions within a project. This proposed work breakdown includes all phases within the life span of the project cycle, including Development, Engineering, Operations, Maintenance, Transfer and Risk.
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Project Capital Cost
1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 2.4 2.5 3.1 3.2 3.3 3.4 3.5
Overhead Construction Equipment Engineering & Design
A basic definition for the procurement is “the way the building is realised” and “involves assembling and organising the skills and services of a team of construction professionals”. (the Construction Round Table, 1995). More precisely, the construction industry describes procurement as “a system that establishes the roles and relationships which make up a project organisation”; hence the overall organisation and communication structure for the management, administration and control of a project is established by the procurement system. (D.C.H Coles, 2010)
592 Week 1 DQ 1 WBS Construction PROJ 592 Week 1 DQ 2 Project Cost Estimates and Assumptions PROJ 592 Week 2 DQ 1 Cost Components PROJ 592 Week 2 DQ 2 Estimating Processes PROJ 592 Week 3 DQ 1 Project Schedules PROJ 592 Week 3 DQ 2 Sensitivity Analysis PROJ 592 Week 4 DQ 1 Resource Allocation and Leveling PROJ 592 Week 4 DQ 2 Advanced Schedule Techniques PROJ 592 Week 5 DQ 1 Earned Value Calculation PROJ 592 Week 5 DQ 2 Project Monitoring and Control & EV PROJ 592 Week 6 DQ 1 Forecasting Project Completion Cost PROJ 592 Week 6 DQ 2 Project Control PROJ 592
1 2 3 4 1 2.7 2.3 2.6 2.7 2.575 0.4 2 2.6 2.4 2.6 2.8 2.6 0.4 3 2.3 2.3 2.4 2.4 2.35 0.1 4 2.8 2.3 2.4 2.7 2.55 0.5 5 2.6 2.5 2.6 2.8 2.625 0.3 6 2.2 2.3 2.7 2.6 2.45 0.5 7 2.2 2.6 2.4 2.3 2.375 0.4 8 2.8 2.6 2.6 2.5 2.625 0.3 9 2.4 2.8 2.4 2.3 2.475 0.5 10 2.6 2.3 2 2.4 2.325 0.6 11 3.1 3 3.5 3 3.15 0.5 12 2.4 2.8 2.2 2.5 2.475 0.6 13 2.1 3.2 2.5 2.8 2.65 1.1 14 2.2 2.8 2.1 2.4 2.375 0.7 15 2.4 3 2.5 2 2.475 1 16 3.1 2.6 2.6 2.1 2.6 1 17 2.9 2.4 2.9 1.8 2.5 1.1 18 1.9 1.6 2.6 3.3 2.35 1.7 19 2.3 2.6 2.7 3.2 2.7 0.9 20 1.8 2.8 2.3 2.9 2.45 1.1 Total 50.675 13.7 Grand Mean= x ̿ = (∑▒X)/(no of samples) = 50.675/20
Clough, Richard H, Glenn A. Sears, S K. Sears, Robert O. Segner, and Jerald L. Rounds. Construction Contracting: A Practical Guide to Company Management. , 2015. Print.
If you lived in Minnesota the worst struggle will be road constructions. Many roads are closed due to unfinished constructions. Because of the I-35 bridge collapse in 2007, which caused many deaths and injuries, the state is focusing on building stronger and safer roads. Every day the communities will face the traffic with delay, road closed, and car accidents. The road constructions had been going on for the whole summer, fall, and winter season. Minnesota is a big city that used the roads a lot to travels; therefore, unfinished road constructions can be a struggle.
We are requested to assist the building with creating a method of construction cost data for client throughout the pre contract. The task of data collection is a difficult procedure and can be include to wide variations. Based upon our experience as quantity surveyors we chose to develop a cost data collection method. Our define construction line items and quantities for relativity building types.
2 3 175 0.080 951 0.43 195 245 658 335 170 3.4 0.9 57.0 9.2 0.21 61.4 1,718 530 1.1 2,520 92,000 583 14 22 6 19 15 927 765 12,280 22
Work Breakdown Structure (WBS) is a tool that is used to define the work elements of a project and identify its entire scope. It is the map of the project which identifies all elements of the project and allows managers to keep track and control of it. It is made of a hierarchy which facilitates the evaluation of cost, time and performance at all levels of the project life-cycle and organization. The structure illustrates the smaller units and allows for adaptation and quick communication if there a problems which need to be addressed. Definitions of each task should be clear and avoid overlapping in
When motor vehicles do unexpected things, tragedies can happen. Rollaway accidents have injured or killed people of all ages. They have triggered other accidents after rolling into busy traffic, and caused property damage. Worn parking gears in automatic transmissions may cause vehicles to slip out of park. In cars built before September 2010, automatic transmissions can be shifted out of park if the key is left in the ignition, even though the engine is off and the your foot isn't on the brake.
5 6 6 7.5 7.5 7.5 8 8 9 10 10 10 10 10 10.5 11 11 12 12 12
The Occupational Safety and Health department was created by the Department of Labor. O.S.H.A was created to help ensure that working men and women work in safe conditions by educating and information programs design to teach safe working habits. State regulation may vary from state to state but a majority of them comply with O.S.H.A. Building have to follow specific regulation and rules set in place by O.S.H.A and other State regulated programs.
In construction projects, mostly the firms (in this case the firms become client) do not have the skills or develop skills inside the firms to undertake the projects due to amount of the projects should be conducted or the complexity of the projects (Reve and Levitt, 1984). Therefore, the economic decision to conduct the projects is to procure them to third parties. However, more commonly the client agonize the final quality of the projects will meet standard requirements. Thus, impacts to involvement of complex contracts of construction procurement.
A work breakdown structure (WBS) will develop for this project and the WBS is based on the project charter, scope statement, and other relevant information. Gantt chart and network diagram also will be well prepared for this project. While preceding the planning stage, the resource usage cash flow report will showing the hours each person is assigned to work on each task each week. Furthermore, the probability/ impact matrix and list of prioritized risks for the project will be included in the project
There are various different interpretations of rework within the construction management literature (Love, 2002a, 2002b; Love and Smith, 2003; Love and Sohal, 2003; Love et al., 2004; Sommerville, 2007). Ashford (1992), for example, defines rework as completing or correcting an item so as to conform to the original requirements, as cited by Love (2002a, 2002b), Love and Smith (2003), Love and Sohal (2003), Love et al. (2004), Hwang et al. (2009) and Love et al. (2009). Alternatively, the Construction Industry Development Agency (CIDA) (1995) defines rework as redoing things at least one more time due to non-conformance to requirements, as cited by Love (2002a, 2002b), Love and Smith (2003), Love and Sohal (2003),
A maximum time variance allowance of ±15% on the project is to be allowed. Quality Audits by the Architectural Teams and engineers are to be performed at regular intervals, and all other important information must be communicated to all managers involved in progress meetings. Health and Safety must be given a considerable amount of weighting due to the fact that the process is very labour intensive and involves high powered tools and heavy machinery.