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A predictive environmental assessment method for construction operations : Application to a Northeast China case study

Feng, Kailun, 1991- (author)
Luleå tekniska universitet,Industriellt och hållbart byggande,Department of Construction Management, Harbin Institute of Technology, Harbin, 150001, China
Lu, Weizhuo (author)
Luleå tekniska universitet,Industriellt och hållbart byggande
Olofsson, Thomas (author)
Luleå tekniska universitet,Industriellt och hållbart byggande
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Chen, Shiwei (author)
Luleå tekniska universitet,Byggkonstruktion och brand,Department of Construction Management, Harbin Institute of Technology, Harbin, 150001, China
Yan, Hui (author)
School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510641, China
Wang, Yaowu (author)
Harbin Institute of Technology, Information Technology Institute, Harbin, China
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 (creator_code:org_t)
2018-10-24
2018
English.
In: Sustainability. - : MDPI. - 2071-1050. ; 10:11
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Construction accounts for a considerable number of environmental impacts, especially in countries with rapid urbanization. A predictive environmental assessment method enables a comparison of alternatives in construction operations to mitigate these environmental impacts. Process-based life cycle assessment (pLCA), which is the most widely applied environmental assessment method, requires lots of detailed process information to evaluate. However, a construction project usually operates in uncertain and dynamic project environments, and capturing such process information represents a critical challenge for pLCA. Discrete event simulation (DES) provides an opportunity to include uncertainty and capture the dynamic environments of construction operations. This study proposes a predictive assessment method that integrates DES and pLCA (DES-pLCA) to evaluate the environmental impact of on-site construction operations and supply chains. The DES feeds pLCA with process information that considers the uncertain and dynamic environments of construction, while pLCA guides the comprehensive procedure of environmental assessment. A DES-pLCA prototype was developed and implemented in a case study of an 18-storey building in Northeast China. The results showed that the biggest impact variations on the global warming potential (GWP), acidification potential (AP), eutrophication (EP), photochemical ozone creation potential (POCP), abiotic depletion potential (ADP), and human toxicity potential (HTP) were 5.1%, 4.1%, 4.1%, 4.7%, 0.3%, and 5.9%, respectively, due to uncertain and dynamic factors. Based on the proposed method, an average impact reduction can be achieved for these six indictors of 2.5%, 21.7%, 8.2%, 4.8%, 32.5%, and 0.9%, respectively. The method also revealed that the material wastage rate of formwork installation was the most crucial managing factor that influences global warming performance. The method can support contractors in the development and management of environmentally friendly construction operations that consider the effects of uncertainty and dynamics.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Infrastructure Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Byggproduktion (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Construction Management (hsv//eng)

Keyword

environmental impacts
construction process simulation
process-based life cycle assessment
construction operations
supply chain
Structural Engineering
Konstruktionsteknik
Byggproduktion och teknik
Construction Management and Building Technology

Publication and Content Type

ref (subject category)
art (subject category)

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