Abdelshafy, A and Walther, G (2023) Using dynamic-locational material flow analysis to model the development of urban stock. Building Research & Information, 51(1), pp. 5-20. ISSN 0961-3218
Abstract
Construction and demolition waste (CDW) constitutes the biggest share of all waste generated. In addition to the environmental advantages, CDW recycling provides also high resource conservation benefits if used as recycled aggregates. Integrated forecasting of demolition and construction activities is crucial for quantifying and reconciling future supply and demand. While spatial characteristics are significant to minimize transportation costs, temporal aspects and material characteristic are important to regard for the development of the urban stock over time. This paper presents a Dynamic-Locational MFA as a model that integrates spatial, temporal and CDW material characteristics into material flow analysis at the demand and supply side. The relevant drivers of construction and demolition activities are defined in order to derive the required equations. Also, the empirical analysis is used to conclude the parameters and demonstrate the model on a real case study. Hence, the synergies between the recycling and construction activities are identified and the supply and demand of materials can be reconciled. The outcomes are not only important in terms of resource efficiency, but also help in anticipating and planning the restructuring of the value chain of the construction sector, such as the locations and capacities of concrete and recycling plants.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | circular economy; construction and demolition waste; dynamic-locational material flow analysis; recycled aggregates; resource conservation |
| Index terms: | resource efficiency, synergy, supply and demand, value chain, forecasting, case study, recycling, construction activity, circular economy, material flow analysis, construction sector, recycled aggregate, resource conservation, construction and demolition |
| Subjects: | construction operations, prediction and forecasting, waste management, data collection methods, industry analysis, partnership management, market analysis, health safety and environment, sustainable design, material science and engineering, value chain strategy, management |
| Topics: | Supply Chain Management, Site Management, Business Strategy, Health and Safety, Research Practice, Stakeholder Management, Sustainability |
| Descriptive scope: | 5 PCTEA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here