Sample Size Needed for Calibrating Trip Distribution and Behavior of the Gravity Model
| dc.contributor.author | Çelik, Hüseyin Murat | |
| dc.coverage.doi | 10.1016/j.jtrangeo.2009.05.013 | |
| dc.date.accessioned | 2017-01-18T13:24:00Z | |
| dc.date.available | 2017-01-18T13:24:00Z | |
| dc.date.issued | 2010 | |
| dc.description.abstract | Conventional calibration algorithms of trip distribution models assume that the analyst has a whole base year trip matrix. To attain a whole trip matrix, the sample size for travel surveys needed to be as large as possible. However, this could be very expensive especially in large cities. Some studies in the past showed a small sized sample would be enough to estimate functional parameters of observed trip length frequency distribution. But the performance of a gravity model with small sized samples has never been addressed. This empirical study has shown that sample sizes as small as 1000 (even smaller for quick response studies) could be as dependable as large sample surveys using a line search calibration algorithm. © 2009 Elsevier Ltd. All rights reserved. | en_US |
| dc.identifier.citation | Çelik, H. M. (2010). Sample size needed for calibrating trip distribution and behavior of the gravity model. Journal of Transport Geography, 18(1), 183-190. doi:10.1016/j.jtrangeo.2009.05.013 | en_US |
| dc.identifier.doi | 10.1016/j.jtrangeo.2009.05.013 | en_US |
| dc.identifier.doi | 10.1016/j.jtrangeo.2009.05.013 | |
| dc.identifier.issn | 0966-6923 | |
| dc.identifier.issn | 0966-6923 | |
| dc.identifier.scopus | 2-s2.0-70449721113 | |
| dc.identifier.uri | http://doi.org/10.1016/j.jtrangeo.2009.05.013 | |
| dc.identifier.uri | https://hdl.handle.net/11147/2813 | |
| dc.language.iso | en | en_US |
| dc.publisher | Elsevier Ltd. | en_US |
| dc.relation.ispartof | Journal of Transport Geography | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | Gravity model | en_US |
| dc.subject | Sample size | en_US |
| dc.subject | Trip distribution | en_US |
| dc.subject | Travel survey | en_US |
| dc.subject | Istanbul | en_US |
| dc.title | Sample Size Needed for Calibrating Trip Distribution and Behavior of the Gravity Model | en_US |
| dc.type | Article | en_US |
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| gdc.author.institutional | Çelik, Hüseyin Murat | |
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| gdc.description.department | İzmir Institute of Technology. City and Regional Planning | en_US |
| gdc.description.endpage | 190 | en_US |
| gdc.description.issue | 1 | en_US |
| gdc.description.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
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| gdc.description.startpage | 183 | en_US |
| gdc.description.volume | 18 | en_US |
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| gdc.oaire.keywords | Gravity model | |
| gdc.oaire.keywords | Sample size | |
| gdc.oaire.keywords | Travel survey | |
| gdc.oaire.keywords | Trip distribution | |
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