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An anatomy of waste generation flows in construction projects using passive bigger data
Jinying Xu1, Weisheng Lu1, Meng Ye2
1Department of Real Estate and Construction, Faculty of Architecture, The University of Hong Kong, Hong Kong, China.
Waste Management (New York, N.Y.)
|March 30, 2020
Summary
Construction waste generation peaks occur at specific project phases. Foundation projects see peaks at 50-85% duration, while new building projects peak at 40-70% of their total time, aiding waste management planning.
Area of Science:
- Environmental Engineering
- Construction Management
- Waste Management
Background:
- Effective construction project waste management requires understanding waste generation flow.
- Previous research indicates an S-curve for cumulative waste, but higher granularity is needed.
- Limited availability of large-scale datasets has constrained detailed waste flow analysis.
Purpose of the Study:
- To provide a detailed anatomy of waste generation flow within building projects.
- To analyze waste generation patterns using a substantial dataset from Hong Kong construction projects.
- To identify specific project phases associated with peak waste generation.
Main Methods:
- Utilized a large dataset encompassing 19 demolition, 59 foundation, and 54 new building projects.
- Data collected from projects undertaken in Hong Kong between 2011 and 2019.
- Analyzed waste generation patterns in relation to project duration and project type.
Main Results:
- Waste generation is not steady and is influenced by contingent factors.
- Waste generation peaks in foundation projects occur between 50-85% of project duration.
- Waste generation peaks in new building projects occur between 40-70% of project duration.
Conclusions:
- The study provides granular insights into construction waste generation dynamics.
- Findings offer valuable information for optimizing waste management plans and logistics.
- Results can assist waste managers in performance benchmarking and resource allocation.
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