The Leadership in Energy and Environmental Design(LEED)rating system is cur-rently progressing from version 3(V3)to 4(V4)with the aim of reducing environ-mental damage in the global construction sector.The LEED Commer...The Leadership in Energy and Environmental Design(LEED)rating system is cur-rently progressing from version 3(V3)to 4(V4)with the aim of reducing environ-mental damage in the global construction sector.The LEED Commercial Interiors(LEED-CI)subsystem is widely used for office spaces,particularly in Shanghai and California.Comparing Shanghai and California in terms of LEED-CI projects can shed light on the ability of the LEED-CI subsystem to adapt to local green building standards and local environmental conditions.The aim of this study was to assess the difference between V3 and V4 LEED-CI Gold office projects using a comparison between Shanghai and California.The US Green Building Council and the Green Building Information Gateway databases were used to source LEED-CI V3 and V4 Gold office projects.The natural logarithm of the odds ratio and Fisher’s exact 2×2 tests with a mid p-value were used to evaluate the binary data,while the Cliff’sδand exact Wilcoxon-Mann-Whitney tests were used to evaluate the ordinal data.The results show no difference between Shanghai and California in terms of LEED-CI V3 Gold office projects in the five main LEED-CI categories.The shift from V3 to V4 LEED-CI Gold office projects is increasing the difference between Shanghai and California in terms of the following LEED-CI categories:location and transporta-tion,water efficiency,energy and atmosphere,and materials and resources.Therefore,as compared to V3,V4 for LEED-CI Gold office projects demonstrated greater adaptability to local green building standards and environmental conditions.展开更多
文摘The Leadership in Energy and Environmental Design(LEED)rating system is cur-rently progressing from version 3(V3)to 4(V4)with the aim of reducing environ-mental damage in the global construction sector.The LEED Commercial Interiors(LEED-CI)subsystem is widely used for office spaces,particularly in Shanghai and California.Comparing Shanghai and California in terms of LEED-CI projects can shed light on the ability of the LEED-CI subsystem to adapt to local green building standards and local environmental conditions.The aim of this study was to assess the difference between V3 and V4 LEED-CI Gold office projects using a comparison between Shanghai and California.The US Green Building Council and the Green Building Information Gateway databases were used to source LEED-CI V3 and V4 Gold office projects.The natural logarithm of the odds ratio and Fisher’s exact 2×2 tests with a mid p-value were used to evaluate the binary data,while the Cliff’sδand exact Wilcoxon-Mann-Whitney tests were used to evaluate the ordinal data.The results show no difference between Shanghai and California in terms of LEED-CI V3 Gold office projects in the five main LEED-CI categories.The shift from V3 to V4 LEED-CI Gold office projects is increasing the difference between Shanghai and California in terms of the following LEED-CI categories:location and transporta-tion,water efficiency,energy and atmosphere,and materials and resources.Therefore,as compared to V3,V4 for LEED-CI Gold office projects demonstrated greater adaptability to local green building standards and environmental conditions.
