Document Details
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Document Type |
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Thesis |
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Document Title |
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Space as a Dimension in Multi- Resources Allocation الفراغ كبعد لتحصيص الموارد المتعددة |
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Subject |
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Faculty of Engineering |
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Document Language |
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Arabic |
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Abstract |
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The space utilized by construction resources, (manpower, materials, and equipment), has been always treated as a task that should be dealt with on site during construction. However, because its significant implication, utilization of space available in the construction site has been receiving attention from several researchers. Reviewing the literature showed that space utilization has been treated from different perspectives to help in planning, managing, or/ and scheduling construction projects.
In this research, the resource allocation problem in construction is studied to produce a Decision Supporting System (DSS) to solve this problem taking into consideration the required workspace for different activities. The DSS integrates the workspace with other resources and deal with them accordingly. The activities are considered to be competing for this new resource (workspace) the same way they are competing for other resources. Therefore, when the resource workspace is limited, it will be a decision factor in schedule development.
The research presented procedure to identify the workspace for different resources. For determining workspace requirement for resources manpower, questionnaire to a group of construction experts in Makkah Region, KSA using Delphi Method was developed to determine the required workspace for different construction activities of residential/commercial projects based on their experience. In addition, ways to estimate workspace required for other resources and necessary passageways in construction sites were illustrated.
The scheme in this research is derived from Fixed Resource Limits Scheduling Scheme as defined by Moder. (Moder et. al. 1983) To develop the schedule, the framework goes through two stages. In the first stage, it requires that project data be prepared in special way to help in identifying the space availability and space required for the activities. First, the project is divided into zones, Work Breakdown Structure (WBS) of the project is prepared, and activities relationships are identified. Next, a CPM schedule that satisfies the relationships between activities is prepared.
In the second stage, the schedule is reviewed one day at a time. Activities are prioritized in a list for scheduling based on heuristic criteria or user input. Then, activities are scheduled as they are in the ordered list if all their resources requirements are satisfied including workspace. Activities are delayed if the resources/workspace available are not enough to satisfy their requirements. This procedure will continue until all activities of the project are scheduled.
The framework was programmed to facilitate the required Decision Supporting System (DSS), and to enable construction practitioners to develop a feasible schedule that will consider activities relations and resources/workspace limits. The data for workspace requirements for manpower inferred previously, were incorporated in a database and linked to the DSS program to form a seed for a databank to obtain workspace needed for different manpower activities. Furthermore, the DSS program allows user to alter the original data if he found it more appropriate from his point of view. The DSS program was equipped with a link to Ms Project program. This will give user graphical interface and the ability to utilize the other Ms Project program features, like schedule update.
Finally, the developed framework and DSS were verified via a sample project that was processed for a feasible schedule manually and by the suggested DSS and it was found that both developed schedules were the same. The developed program will work as a DSS to help construction practitioners to develop a feasible practical schedule that take in consideration the space limitation problem while respecting activities relationships. The developed DSS program is user friendly and it is anticipated that it will help to solve resource allocation in conjunction with space allocation using an easy method. |
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Supervisor |
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Dr. Mahmoud Abdel-Salam Taha |
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Thesis Type |
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Doctorate Thesis |
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Publishing Year |
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1430 AH
2009 AD |
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Added Date |
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Monday, December 28, 2009 |
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Researchers
| أسامة فؤاد طرابلسي | Tarabolsi, Osama Fouad | Researcher | Doctorate | |
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