Effects and Causes Analysis of Building Construction Delay project in Bangkok Metropolitan

Abstract

Delay problems occur frequency in life-cycle during the project task and leading to potential impacts to the project expectation either additional costs or extension of time deliverable in the project. Therefore, it is necessary to examine and analyze causes and effects of construction delay. The aim of this research is to investigate the major causes and effects of delay problems on high-rise building construction project in Bangkok. This research presents thirty-three causes and nine effects retrieved from literature review. The questionnaire survey and interview are used in this research to investigate deeply information. The questionnaire survey was distributed to fifty-one respondents who posited owner, consultant, and contractor at site-working project. The interview process was represented by project manager and consultant who is expert position in Noble Ploenchit project where located in Bangkok, Bangkok. Furthermore, Relative Importance Index was used to analyze and calculate to the highest ranked of causes and effects of delay in Thai construction project. From the factor analysis, the results showed that mostly significant factors of construction delay were: (1) change orders, (2) financial problem of contractor, (3) slow decision-making, (4) shortage labors, (5) improper planning, (6) lack of good communication, (7) third party delay such as subcontractors or supplier, (8) unclear with shop drawing design, (9) shortage of construction materials and (10) late payment by owner. In terms of potential effects in this research, the results indicated that five highly ranking as delay in obtaining funds and profits both owner and contractor, cost overrun, time overrun, low quality due to hurry and arbitration. These findings are expected to be essentially encouragement to Thai construction industry in order to find the solution in the delay problem.