On the use of random graphs in analysing resource utilization in urban systems.

Autor:	Arbabi H; Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK., Punzo G; Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield S1 3JD, UK., Meyers G; Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK., Tan LM; Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK., Li Q; Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK., Densley Tingley D; Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK., Mayfield M; Department of Civil and Structural Engineering, University of Sheffield, Sheffield S1 3JD, UK.
Jazyk:	angličtina
Zdroj:	Royal Society open science [R Soc Open Sci] 2020 Apr 15; Vol. 7 (4), pp. 200087. Date of Electronic Publication: 2020 Apr 15 (Print Publication: 2020).
DOI:	10.1098/rsos.200087
Abstrakt:	Urban resource models increasingly rely on implicit network formulations. Resource consumption behaviours documented in the existing empirical studies are ultimately by-products of the network abstractions underlying these models. Here, we present an analytical formulation and examination of a generic demand-driven network model that accounts for the effectiveness of resource utilization and its implications for policy levers in addressing resource management in cities. We establish simple limiting boundaries to systems' resource effectiveness. These limits are found not to be a function of system size and to be simply determined by the system's average ability to maintain resource quality through its transformation processes. We also show that resource utilization in itself does not enjoy considerable size efficiencies with larger and more diverse systems only offering increased chances of finding matching demand and supply between existing sectors in the system. Competing Interests: We declare we have no competing interests. (© 2020 The Authors.)
Databáze:	MEDLINE
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