ASSESSING THE RISK PERCEPTION OF COST OVERRUN THROUGH IMPORTANCE RATING
通过调查101名建筑专业人士，识别出成本超支的主要因素，包括成本估算不准、计划不当、合同期限不合理等，对项目管理者有参考价值。
Cost overrun in construction projects is a common issue affecting project performance. After a review of the literature, a list of 39 cost overrun attributes were gathered and presented in a survey. The survey was distributed online to construction professionals. 101 complete responses were received and analyzed by importance index, frequency index, cost index, frequency adjusted cost index, Spearman’s rank correlation, student’s t-test, risk assessment and factor analysis. The results of the survey revealed that the main causes of cost overrun in construction industry include inaccurate cost estimation, improper planning and scheduling, unrealistic contract duration and requirements, frequent changes to the scope of work, frequent design changes, inadequate labor/skill availability, inflation on costs of machinery, labor, material and transportation.