A study on the problems of quality control system and it's counter measure in public work projects

Abstract

Recently, the quality defect problem is arising in public works. Many countermeasures to ensure quality have been implemented based on “Bill for Ensuring the Quality of Public Works” enforced in 2005. However, one of the causes of quality defect problem is that project management system does not work enough in Japanese Public Works. Project management system in Japanese construction industry does not have integrated among time, cost, quality and safety management functions, and to ensure enough quality, project management system should have integrated time, cost, quality and safety functions. Actual situation of project management system in Japanese construction industry was studied by investigation of Construction method statement, Schedule diagram and Cost breakdown of actual projects, questionnaire survey with active engineers and investigation of laws and standard conditions of contract in Japanese Public Works. Based on the study, countermeasures were found out. In order to improve the system the most important countermeasures recommended are to make Construction method statement, Schedule diagram and Cost breakdown as a part of tender documents and to give them contractual binding force.