Hi, Rui,
Many thanks for the nice comments. I presume that the 9 categories are
functional classes. I suspect the functional categories or classes would
conform to the rankings obtained by topological measures. From Google
Maps, we can visually differentiate three such functional classes, but
not 9 classes. Do you have more detailed information about the
functional classes? I meant any literature or reports on the 9
functional classes?
Cheers.
Bin
Carvalho wrote:
> Hi Bin,
>
> I have to say I’m quite intrigued by this line of research which tries to
> rank streets according to some topological measures.
>
> Have you tried to compare the rankings you obtain with Teleatlas or Ordnance
> Survey data? Teleatlas data assigns a road class to each segment which
> classifies roads from “Local Road of Minor Importance” to “Motorway, Freeway
> or Other Major Road” (there's 9 categories).
>
> So the obvious question (since you mention traffic flows) is how do these
> rankings which you find compare with the known classes assigned to roads on
> the basis of the real traffic which flows on those?
>
> Best regards,
> Rui
>
>
> ___________________________________________
> Recent papers:
> Scaling and allometry in the building geometries of Greater London
> Michael Batty, Rui Carvalho, Andy Hudson-Smith, Richard Milton, Duncan
> Smith, Philip Steadman
> [to appear in European Physical Journal B (EPJ B))
>
>
> Dr. Rui Carvalho
> School of Mathematical Sciences
> Queen Mary, University of London
> Mile End Road, London E1 4NS, UK
> http://www.ruicarvalho.org/
>
>
> On Wed, 11 Jun 2008 23:00:28 +0800, Bin Jiang <[log in to unmask]> wrote:
>
>
>> Hi, this paper might be of interest to space syntax researchers
>> http://arxiv.org/ftp/arxiv/papers/0804/0804.1630.pdf
>> any comments are very welcome.
>>
>> Cheers.
>>
>> Bin
>>
>> --
>> --------------------------------------------------------
>> Bin Jiang
>> Division of Geomatics
>> Dept. of Technology and Built Environment
>> University of Gé‹ le, SE-801 76 Gé‹ le, Sweden
>> Phone: +46-26-64 8901 Fax: +46-26-64 8828
>> Email: [log in to unmask] Web: http://www.hig.se/~bjg/
>> --------------------------------------------------------
>>
>> NordGISci: http://www.hig.se/~bjg/NordGISci/
>> ICA Commission: http://www.hig.se/~bjg/ica/
>>
>
>
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