>
> I haven't had a good look at Bin's paper yet, but it seems to me that his
> work has an advantage over the googol (i.e. 10 followed by 100 zeros)
> number of projects that are starting on this list every week: it's
> finished and will appear in print in a respected journal.
>
> Power-law distributions often have exponential cut-offs at the tail, which
> mean that the straight lines become curves. This is a well know phenomenon
> in real networks and one that I would expect to be present in street
> networks as physical constrains are bound to restrain growth at large
> scales.
>
but this is curved throughout the length - very clearly so - I suspect a
simple power function which would still be interesting...
> One of the problems I had in the Physica A paper was that we do not know
> what a street is. There are several representations out there, but there
> is no uniquely accepted concept?
Agreed - an argument for a (comparatively) well defined concept like the
axial line perhaps? :-)
>
> Rui
> ________________________________________
> Rui Carvalho
> http://www.casa.ucl.ac.uk/rui/
> Senior Research Fellow
> Centre for Advanced Spatial Analysis
> University College London
> 1-19 Torrington Place
> Gower Street
> London WC1E 6BT, U.K.
>
>
> On Wed, 30 May 2007 16:16:25 +0100, Lucas Figueiredo
> <[log in to unmask]> wrote:
>
> >Really?
> >
> >So physicists really believe that curves are straight lines? Those
> >plots are not power-laws.
> >
> >I mentioned in my paper that a large number of cities have non-scale
> >free behaviour (maybe because my database includes a more rich
> >variety).
> >
> >However, the best candidates for a "scale-free" street networks are
> >american cites for the continental aspect and the car-oriented design.
> >
> >Anyway I see curves in your paper. Maybe I need to change glasses again!
> >
> >I will read and give my comments to you,
> >
> >Lucas
> >
> >On 30/05/07, Bin Jiang <[log in to unmask]> wrote:
> >> Hi, Lucas and mike, Nice papers looks. my paper will appear in Physica
> A.
> >>
> >> Bin
> >>
> >> Figueiredo wrote:
> >> > Hi Bin,
> >> >
> >> > Have a look at:
> >> > http://eprints.ucl.ac.uk/archive/00002694/
> >> >
> >> > Lucas Figueiredo
> >> > Bartlett School of Graduate Studies
> >> >
> >> >
> >> > On 30/05/07, Bin Jiang <[log in to unmask]> wrote:
> >> >> this paper might be of interest to some of you,
> >> >> http://arxiv.org/ftp/physics/papers/0703/0703223.pdf
> >> >>
> >> >> your comments are welcome.
> >> >>
> >> >> Cheers.
> >> >>
> >> >> Bin
> >> >> --
> >> >>
> >> >> ------------------------------------------------
> >> >> Bin Jiang
> >> >> Department of Land Surveying and Geo-informatics
> >> >> The Hong Kong Polytechnic University
> >> >> Hung Hom, Kowloon, Hong Kong.
> >> >> Tel: (852) 2766 4335, Fax: (852) 2330 2994
> >> >> Email: [log in to unmask]
> >> >> ------------------------------------------------
> >> >>
> >> >
> >> >
> >>
> >>
> >> --
> >> ------------------------------------------------
> >> Bin Jiang
> >> Department of Land Surveying and Geo-informatics
> >> The Hong Kong Polytechnic University
> >> Hung Hom, Kowloon, Hong Kong.
> >> Tel: (852) 2766 4335, Fax: (852) 2330 2994
> >> Email: [log in to unmask]
> >> ------------------------------------------------
> >>
> >
> >
> >--
> >Lucas Figueiredo
> >http://www.flickr.com/photos/lucasfigueiredo/
> >
> >Mindwalk
> >http://www.mindwalk.com.br
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