Abstract:
This research presented a study of delay factors effecting to the construction period during the construction stage in high-rise
building construction in Bangkok and its surrounding areas. The research effort focused on delay factors leading to effect in different
type of construction, including structural, architectural, electrical and mechanical, and sanitary works for both domestic and nominated
sub-contract. The data were gathered by means of questionnaires and interview seeking for preventive action and problem-solving
as well. Statistical techniques were used for data analysis. The finding showed that there were 23 significant delay factors such
as substantial change of specifications, delay of site possession were cause of project delay. In particular, it was found that there were
5 critical delay factors that would commonly occur with both domestic and nominated sub-contract of all type of construction.