Open AccessOptimizing the Time Performance of Subcontractors in Building Projects
Author(s) -
Andy Ng,
Andrew D.F. Price
Publication year - 2010
Publication title -
the australasian journal of construction economics and building
Language(s) - English
Resource type - Journals
eISSN - 1837-9133
pISSN - 1835-6354
DOI - 10.5130/ajceb.v10i1/2.1591
Subject(s) - interfacing , work (physics) , engineering , questionnaire , prefabrication , engineering management , operations management , process management , computer science , civil engineering , mathematics , mechanical engineering , computer hardware , statistics
The main contractors of Hong Kong building projects tend to subcontract most of their work. However, many of the subcontractors complain that they are not being fully utilized due main contractors’ poor site coordination of temporary works and interfacing works and plant supports etc. A list of critical site coordination problems caused by main contractors that had adversely influence to the time performance of subcontractors was prepared. A questionnaire survey was conducted to collect data to generate multiple regression equations that explain how the critical site coordination problems affected the time performance of different types of subcontractor. The survey results were validated by neural network analysis. Backward elimination method was adopted to identify the ‘most critical’ site coordination problems that enable main contractors to formulate measures to enhance their site management system