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Simulation based population synthesis
École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland .
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Traffic and Logistics.
2013 (English)In: Transportation Research Part B: Methodological, ISSN 0191-2615, E-ISSN 1879-2367, Vol. 58, no SI, 243-263 p.Article in journal (Refereed) Published
Abstract [en]

Microsimulation of urban systems evolution requires synthetic population as a key input. Currently, the focus is on treating synthesis as a fitting problem and thus various techniques have been developed, including Iterative Proportional Fitting (IPF) and Combinatorial Optimization based techniques. The key shortcomings of these procedures include: (a) fitting of one contingency table, while there may be other solutions matching the available data (b) due to cloning rather than true synthesis of the population, losing the heterogeneity that may not have been captured in the microdata (c) over reliance on the accuracy of the data to determine the cloning weights (d) poor scalability with respect to the increase in number of attributes of the synthesized agents. In order to overcome these shortcomings, we propose a Markov Chain Monte Carlo (MCMC) simulation based approach. Partial views of the joint distribution of agent's attributes that are available from various data sources can be used to simulate draws from the original distribution. The real population from Swiss census is used to compare the performance of simulation based synthesis with the standard IPF. The standard root mean square error statistics indicated that even the worst case simulation based synthesis (SRMSE = 0.35) outperformed the best case IPF synthesis (SRMSE = 0.64). We also used this methodology to generate the synthetic population for Brussels, Belgium where the data availability was highly limited.

Place, publisher, year, edition, pages
2013. Vol. 58, no SI, 243-263 p.
Keyword [en]
Markov chain Monte Carlo simulation, Population synthesis, Agent based model, Integrated urban systems planning
National Category
Transport Systems and Logistics
Identifiers
URN: urn:nbn:se:kth:diva-138253DOI: 10.1016/j.trb.2013.09.012ISI: 000330082600016Scopus ID: 2-s2.0-84885798000OAI: oai:DiVA.org:kth-138253DiVA: diva2:680654
Conference
13th Conference of the International-Association-of-Travel-Behavior-Research (IATBR), July, 2012, Toronto, Canada
Note

QC 20140207

Available from: 2013-12-18 Created: 2013-12-18 Last updated: 2017-12-06Bibliographically approved

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CiteExportLink to record
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  • apa
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  • de-DE
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Output format
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