期刊
JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT
卷 134, 期 6, 页码 387-397出版社
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)0733-9364(2008)134:6(387)
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Alternative project delivery systems such as construction management at risk (CMR) are increasingly used in public school construction in the United States. CMR is expected to benefit owners with a guaranteed maximum price (GMP), decreased change order cost, and increased cost '' certainty.'' This paper empirically compares cost growth performance of the CMR and design-bid-build (DBB) methods in Pacific Northwest public school projects. Data were collected from state records and previous studies on 297 completed schools in Oregon and Washington. The analysis of the data shows no statistically significant difference between CMR and DBB in construction change order costs, school project costs exceeding the GMP in 75% of the cases, and a statistically significant difference in cost growth between CMR and DBB projects during buy out, making CMR projects less efficient at controlling cost growth at buy out. These results counter some of the traditional expectations of the CMR delivery method.
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