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Material Stock Demographics: Cars in Great Britain.


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Authors

Cabrera Serrenho, André 

Abstract

Recent literature on material flow analysis has been focused on quantitative characterization of past material flows. Fewer analyses exist on past and prospective quantification of stocks of materials in-use. Some of these analyses explore the composition of products' stocks, but a focus on the characterization of material stocks and its relation with service delivery is often neglected. We propose the use of the methods of human demography to characterize material stocks, defined herein as stock demographics, exploring the insights that this approach could provide for the sustainable management of materials. We exemplify an application of stock demographics by characterizing the composition and service delivery of iron, steel, and aluminum stocks of cars in Great Britain, 2002-2012. The results show that in this period the stock has become heavier, it is traveling less, and it is idle for more time. The visualization of material stocks' dynamics demonstrates the pace of product replacement as a function of its usefulness and enables the formulation of policy interventions and the exploration of future trends.

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Keywords

Aluminum, Automobiles, Demography, Humans, Prospective Studies, Steel, United Kingdom

Journal Title

Environ Sci Technol

Conference Name

Journal ISSN

0013-936X
1520-5851

Volume Title

50

Publisher

American Chemical Society (ACS)
Sponsorship
Engineering and Physical Sciences Research Council (EP/N02351X/1)
This work was supported by EPSRC, grant reference EP/N02351X/1.