Planning scheduling for construction project: a case study of duration estimation influence factors

摘要

Although, every planning and scheduling has been carried out perfectly and closely, this will not guarantee that the project will be completed successfully. A project will not be udsuccessful if monitoring and controlling process is not being executed according in the implementation of the project. Normally, when it comes to big budget project, no known project was able to complete on time, budget and quality: Due to this, it is important for us to avoid or minimise the problem as much as we can. On the other hand, we need to make a good start by effectively and efficiently planning and scheduling in order to achieve our ultimate goal in the project life cycle. A good starts means a good planning with approximately précised duration estimation and in order to achieve the best planning factors that contribute to the duration estimation process need udto be identify. The main objective of this study was to find the procedure in making duration estimation and factors that contribute to duration estimation process at planning stage. Contractors can thus use a project's characteristics, as given in the tender documents, to estimate the actual amount time it would take them to complete the construction works. In this study, factors affecting the duration of a construction project were investigated. Within this framework, duration estimation process and factors influenced were detected and analyses were conducted on data related to three case study of residential construction project around Pahang. This data was obtained from the three selected companies that responsible in the construction of those three case studies. The closeness in estimation of the duration analyses was investigated and finally factors that influence the duration estimation process was obtained. After acquiring the most considerable factor in duration estimation, several suggestions can be created for the development of strategies with the purpose in improving construction planning practices and can be as a guideline for juniors in planning and scheduling.