Hi Jonathan!
Your friend may consider reading this article as it calculates this
"known strangers" phenonemenon due to recurring physical vicinity.
Lijun Sun, Kay W. Axhausen, Der-Horng Lee, Xianfeng Huang (2013):
Understanding metropolitan patterns of daily encounters; Proceedings
of the National Academy of Sciences; DOI: 10.1073/pnas.1306440110.
regards
T+
> A friend in a high-tech field asked me the following question. I
> don't have the answer. Can any of you help with it? Thanks! --Jonathan
>
>
> Given an urban area, I’d like a simple model that could predict the
> typical number of distinct encounters per day experienced by a
> resident. Define “encounter” as two residents coming within X meters
> of each other. I’m looking for a rough number, parameterized by X
> and some macro-features of the city (population, density, etc.).
> Ideally, this model would exclude high-velocity encounters like
> people passing each other in moving vehicles.
>
> Google and the mobile operators have the location-tracking data to
> compute this. Have any studies on movement throughout an urban area
> been published using mobile tracking data? I would imagine there
> have been attempts by urban planners or sociologists to answer
> questions like this before the proliferation of cell phones.
>
> -----
> Jonathan Richmond
> +1 617 395-4360
> +44 (0)203 129-1708
> iNum: +883 51000 9043175
>
> e-mail: [log in to unmask]
> http://the-tech.mit.edu/~richmond/
----- Ende der Nachricht von [log in to unmask] -----
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WED, THU & FRI at the University.
--
Tadej Brezina, Univ.Ass. Dipl.-Ing.
Research Center of Transport Planning and Traffic Engineering
Institute of Transportation
Vienna University of Technology
Gußhausstraße 30/230-1 | A-1040 Wien
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Mail: [log in to unmask]
Tel: +43-(0)1-58801-23127
Fax: +43-(0)1-58801-23199
Web: www.ivv.tuwien.ac.at
www.facebook.com/IVV.TUW
DVR: 0005886
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Current publications:
*) H. Pilko, K. Tepes, T. Brezina (2015): "Policy and programs for
cycling in the City of Zagreb – a critical review"; in: Promet -
Traffic&Transportation; vol. 27, nr. 5, p.
405-415;http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/1694.
*) J. M. Schopf, T. Brezina (2015): Umweltfreundliches
Parkraummanagement - Leitfaden für Länder, Städte, Gemeinden, Betriebe
und Bauträger; BMLFUW, Wien;
http://www.ivv.tuwien.ac.at/detail/backto/3134/news/leitfaden-stellplatzmanagement.html.
*) P. C. Pfaffenbichler, T. Brezina (2015): "Estimating future bike
parking demand under limited data availability"; in: Engineering
Sustainability - Facilitating active travel in urban areas;
http://www.icevirtuallibrary.com/content/article/10.1680/ensu.14.00063.
*) T. Brezina, T. Hader, E. Eder (2015): "Pendeln in der Ostregion -
Potenziale für die Bahn"; AK Wien, in: Verkehr und Infrastruktur;
http://www.ivv.tuwien.ac.at/news/allgemein/ak-pendlerpublikation.html.
*) T. Brezina, D. Moncholi Badillo, J. M. Schopf (2015): "Public
transit supply in commuter-belt municipalities – A systemic analysis
of two districts in the Vienna region"; in: Promet -
Traffic&Transportation;
http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/1618/1318.
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(Webmail)
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