Factors that influence achieving the time performance of high-rise building construction: contribution of the contractor quantity surveyor

High-rise (HR) development projects face significant risks and time constraints. The majority of owners seek the projects to be completed early. Early identification of the factors affecting CTP (Construction Time Performance) would allow to reduce or eliminate time overruns. The contractor plays a significant role in CTP. CQSs (Contractor Quantity Surveyors) have also been receiving increasing attention concerning CTP. The roles performed by CQSs can be utilized to control the factors affecting CTP. Therefore, this study focuses on the factors affecting CTP in HR buildings and the role of the CQS (Contractor Quantity Surveyor) in CTP. The study used a qualitative approach. Semi-structured interviews selected through purposive sampling were used to gather the required information. The data were manually analyzed using content analysis. Fifty-four factors were identified and classified under six categories. A new additional factor was identified. Interviewees endorsed 49 factors that have a substantial impact on CTP. Seventeen roles of CQSs were identified. The identified 17 roles can influence thirty-three CTP-related factors. The study intends to increase awareness of enhancing CTP related to HR building projects.