Abstract:
On-time completion is one of the most important criteria for recent successful
construction projects. High-rise building projects face significant risks and time
constraints due to the complexity and dynamic nature of their environments. Demand for
high rise buildings has been fuelled by economic advancements, rapid suburbanization,
and increased consumer spending in Sri Lanka. High-rise building developments require
a large amount of funding, permissions and procedures, advanced construction methods,
and collaboration between many project participants. Delays have been observed
regularly in high-rise buildings, yet studies on factors affecting construction time
performance (CTP) are scarce in the Sri Lankan context. Therefore, this study focused
on the factors affecting CTP in high-rise building projects in Sri Lanka. If the factors
were identified at early stages, they could be minimised or even mitigated and the chance
of future occurrences can be minimised. The study used a qualitative approach. Factors
affecting CTP were identified through the literature review. The required data were
collected from a series of semi-structured interviews identified from purposive sampling.
The data were analysed using manual content analysis and validated for high-rise
building projects using semi-structured interviews. Fifty-four factors were identified
under six categories, including owner, contractor, consultant, contract, contractual
relationships and external factors. New additional factor mismatches between the design
and budgets are identified. Further, interviewees endorsed 49 factors that were
considered as factors that significantly affect CTP. T
