Assessing Factors Causing Construction Delay in Addis Ababa Housing Development Corporation Projects, the Case of Project 12
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Date
2021-09-28
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Addis Ababa University
Abstract
The paper assessed significant factors causing delay in the construction of projec12 at Bole Arabsa site. The assessment involved the professionals from the three important major stakeholders in the sector who were involved in the project 12. In conducting the assessment five important sources of delay determinant (independent variables) were identified from previous literatures as client related, contractor related, consultant related, construction material related and construction environment related to be evaluated for their significance level to cause project delay at project 12. The research adapts descriptive research design and involves mixed research approach to collect data relevant to the paper. The study also considered the project time management system as a confounding variable between the dependent variable (project time performance or project delay) and the independent variables considered in five main categories. The sample for this assessment research was taken from three different population groups which are the client, the contractors and the consultants participating in project 12.disproportianate stratified sampling was used to select sample representative for each group and purposive non probability sampling to address the selected sample of each group. From 38 lists of factors identified under the main categories of delay causing factors the most significant factor causing delay were identified in terms of their relative importance level evaluated by 18 contractor’s representative, 15 client representative and 12 consultant representative professionals. From The study top significant causes of delay within each category were identified and ranked according to the relative importance from combined responses of the stake holders and the perception of each stakeholder towards the most significant important source of delay was identified. The research also identified the significant sources of delay determinant from among the five main categories of delay sources with the degree of their relative importance and the frequencies of factor contributed in the first top ten list. The paper evaluates the project time management practice as confounding variables between the dependent and independent variables and it was found that the poor performance of time management also played a significant role for the delay of the project as it increases the influence of independent variables and also impact project time performance at the same time.
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Keywords
Delay Determinant., Dependent Variables, Independent Variable, Confounding Variable