Client Related Changes Affecting Construction Schedule Performance


  • Abdulla Al Ameri Universiti Tun Hussein Onn Malaysia
  • Nur Ain Ngah Nasaruddin Universiti Tun Hussein Onn Malaysia


Changes, schedule performance, construction works


Majority of UAE construction works were reported experiencing changes during execution process which exerts adverse effects to project success. Among the negative impacts is the failing in achieving satisfactory schedule performance. This poor schedule performance is also common issue faced by construction works globally. This paper addressed a study on various client related factors causing changes and parameters that affecting project schedule performance. The study was conducted through quantitative method. The data was gathered through questionnaire survey amongst the practitioners from contractor and consultant organization engaged in construction project of UAE and analysed statistically using significant index value. Results obtained in this study highlighted lack of coordination, replacement of key personnel by clients and inadequate understanding of clients need as three major issues related to client which are responsible for changes in construction works. While delay in completion schedule, slower project progress and dispute between owner & contractor are as major parameters affecting schedule performance. For correlation analysis, it was found that lack of coordination between the parties has significant correlation with delay in completion schedule, and dispute between owner & contractor. Also replacement of key personnel from client has significant correlation with schedule delay that are additional works and re-work/redesign. These finding will be helpful for practitioner in prioritizing the factors of change and schedule measuring parameters for improving schedule performance.


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How to Cite

Al Ameri, A., & Nasaruddin, N. A. N. (2020). Client Related Changes Affecting Construction Schedule Performance. International Journal of Sustainable Construction Engineering and Technology, 11(3), 51–58. Retrieved from