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    The impact factors of construction project duration and management process
    (İstanbul Gedik Üniversitesi, 2022) Alhuraishi, Omer Sabbar; Kazar, Gökhan
    The execution course of water construction projects faces many challenges, one of these challenges is the inability to complete projects on the planned time schedule. There are many project planning success criteria, the most commonly used criteria for successful projects are fulfillment of the planned schedule, quality and financial requirements. The present research aims at investigating the impact factors of construction project duration and management process of water projects in Baghdad. An on- line questionnaire- based investigation of the water projects in Baghdad is conducted by collecting the required data. The targeted population of the investigation consisted of groups of 122 experts and specialists of engineers working in the design, planning, execution, management and rehabilitation fields of water and sanitation projects in various directorates following both Iraqi government and other establishments (e.g. Ministry of municipalities and public works, Mayoralty of Baghdad, water directorate) and UN agencies (i.e., UNICEF and UNHCR) both in management and lower levels. There are many techniques to identify the impact of project duration on management control and quality. An ANOVA technology is one of them. An Analysis of Variance model (ANOVA) is implemented for analyzing data that are collected from the respondents. Contradicting variance as well as the factors having anegligible variance are being helpfully found out. ANOVA single factor test is implemented to determine how significant or effective is a survey or experimental results. Reliability of a qualitative study is the research dependability so that Cronbach's Alpha coefficient (?) has been used for checking questionary's reliability. Analysis of the results reveals that, for all factors investigated, the level of significance of some factors is more than moderate; that of other factors is almost high belonged to the Other factors related-weak site management &inaccurate field investigation, Consultant Factors-limited collected data and survey prior to design, Material poor quality of construction materials., Consultant Factors-poor communication and coordination., Material related-poor planning of supply plan for materials., Consultant Factors-mistakes and discrepancies in design documents., Contractor and workers/personnel related-frequent change of sub-contractors., Consultant Factors-nonclear and insufficient detailed reference drawings, Contractor with workers/personnel related-improper construction methods implement; almost the percent ranged between 82%-80% and according to Standard Deviation (variance from 0.916 to 0.933). Suggestions for further investigation involve improving the way of implementing and focusing on these issues in the analysis.