1. Betweenness centrality assumes an equal density of sources and sinks,
independently of spatial aggregation effects.
In layman's words: there are as many different offices as there are households.
2. The shortest path between north and south greater London would go through
the centre of London, not through the M25. But traffic does not flow along
topological shortest paths -it flows along the routes with the highest capacity.
Are these obvious points of any relevance to this community?
That's not up to me to decide. But I'm obviously skeptical that this line of
research will have an impact beyond the space syntax symposium series, which
is why my research has shifted to other urban problems.
All the best,
Rui
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Recent work on spatial networks, GIS datasets and cities:
1. Robustness of Trans-European Gas Networks: The Hot Backbone
Rui Carvalho, Lubos Buzna, Flavio Bono, Eugenio Gutierrez, Wolfram Just,
David Arrowsmith
http://arxiv.org/abs/0903.0195
2. LivingScience -where Science is Happening:
http://www.livingscience.ethz.ch/
Dr. Rui Carvalho
School of Mathematical Sciences
Queen Mary, University of London
Mile End Road, London E1 4NS, UK
http://www.ruicarvalho.org/
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