Open AccessPosted Content
An Urban Morphogenesis Model Capturing Interactions between Networks and Territories
TLDR
This chapter defines complementary measures and study their empirical values and their spatial correlations on European territorial systems, and introduces a generative model of urban growth at a mesoscopic scale.Abstract:
Urban systems are composed by complex couplings of several components, and more particularly between the built environment and transportation networks. Their interaction is involved in the emergence of the urban form. We propose in this chapter to introduce an approach to urban morphology grasping both aspects and their interaction. We first define complementary measures, study their empirical values and their spatial correlations on European territorial systems. The behavior of indicators and correlations suggest underlying non-stationary and multi-scalar processes. We then introduce a generative model of urban growth at a mesoscopic scale. Given a fixed exogenous growth rate, population is distributed following a preferential attachment depending on a potential controlled by the local urban form (density, distance to network) and network measures (centralities and generalized accessibilities), and then diffused in space to capture urban sprawl. Network growth is included through a multi-modeling paradigm: implemented heuristics include biological network generation and gravity potential breakdown. The model is calibrated both at the first (measures) and second (correlations) order, the later capturing indirectly relations between networks and territories.read more
Citations
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Journal ArticleDOI
Morphology of travel routes and the organization of cities
TL;DR: The shape of travel routes in 92 cities is investigated and a metric called inness is defined which reveals connections between common urban features in cities with similar inness profiles, suggesting a strong connection between urban development, increasing physical connectivity, and diversity of road hierarchies.
Book ChapterDOI
Modeling the co-evolution of cities and networks
TL;DR: In this article, the authors introduce a family of models of co-evolution for systems of cities at the macroscopic scale, which capture the complexity of interactions between networks and territories through the existence of circular causal relations in their co-development.
Book ChapterDOI
Unveiling co-evolutionary patterns in systems of cities: a systematic exploration of the SimpopNet model
Juste Raimbault,Juste Raimbault +1 more
TL;DR: This chapter applies high performance computing numerical experiments to the SimpopNet co-evolution model in order to understand its behavior and illustrates how the systematic exploration of a simulation model can qualitatively transform the knowledge it provides.
Journal ArticleDOI
A spatial agent based model for simulating and optimizing networked eco-industrial systems
Juste Raimbault,Joris Broere,Marius Somveille,Jesus Mario Serna,Evelyn Strombom,Christine Moore,Ben Zhu,Lorraine Sugar +7 more
TL;DR: A simulation model of by-product flow between industrial actors is put forward to introduce a method for modelling symbiotic exchanges from a macro perspective and shows that the geographical properties are an important factor for the macro performance of symbiotic processes.
Posted Content
Space Matters: extending sensitivity analysis to initial spatial conditions in geosimulation models
TL;DR: In this paper, the authors present a method to assess the effect of some initial spatial conditions on simulation models, using a systematic spatial configuration generator in order to create density grids with which spatial simulation models are initialised.
References
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Journal ArticleDOI
How Accessibility Shapes Land Use
TL;DR: In this article, an empirical analysis of the residential development patterns illustrates that accessibility and the availability of vacant developable land can be used as the basis of a residential land use model.
Journal ArticleDOI
How Good is Volunteered Geographical Information? A Comparative Study of OpenStreetMap and Ordnance Survey Datasets:
TL;DR: Analysis of the quality of OpenStreetMap information focuses on London and England, since OSM started in London in August 2004 and therefore the study of these geographies provides the best understanding of the achievements and difficulties of VGI.
Posted Content
Urban spatial structure.
TL;DR: Anas et al. as discussed by the authors discuss the role that urban size and structure play in people's lives and how to understand the organization of cities, which yields insights about economy-wide growth processes and sheds light on economic concepts.
Journal ArticleDOI
Global Estimates of the Prevalence and Incidence of Four Curable Sexually Transmitted Infections in 2012 Based on Systematic Review and Global Reporting
Lori M. Newman,Jane Rowley,Stephen Vander Hoorn,Stephen Vander Hoorn,Nalinka Saman Wijesooriya,Magnus Unemo,Nicola Low,Gretchen A Stevens,Sami L Gottlieb,James Kiarie,Marleen Temmerman +10 more
TL;DR: Estimates of the global prevalence and incidence of chlamydia, gonorrhoea, trichomoniasis, and syphilis in adult women and men remain high, with nearly one million new infections with curable STI each day.
Book
Fractal Cities: A Geometry of Form and Function
Michael Batty,Paul A. Longley +1 more
TL;DR: Planners and architects will find that many aspects of fractal geometry covered in this book are relevant to their own interests.