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Soc. open sci."],"published-print":{"date-parts":[[2018,9]]},"abstract":"<jats:p>Since the presentation of the radiation model, much work has been done to compare its findings with those obtained from gravitational models. These comparisons always aim at measuring the accuracy with which the models reproduce the mobility described by origin\u2013destination matrices. This has been done at different spatial scales using different datasets, and several versions of the models have been proposed to adjust to various spatial systems. However, the models, to our knowledge, have never been compared with respect to policy testing scenarios. For this reason, here we use the models to analyse the impact of the introduction of a new transportation network, a bus rapid transport system, in the city of Teresina in Brazil. We do this by measuring the estimated variation in the trip distribution, and formulate an accessibility to employment indicator for the different zones of the city. By comparing the results obtained with the two approaches, we are able to not only better assess the goodness of fit and the impact of this intervention, but also understand reasons for the systematic similarities and differences in their predictions.<\/jats:p>","DOI":"10.1098\/rsos.171668","type":"journal-article","created":{"date-parts":[[2018,9,12]],"date-time":"2018-09-12T07:29:15Z","timestamp":1536737355000},"page":"171668","update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":57,"title":["Measuring accessibility using gravity and radiation models"],"prefix":"10.1098","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4047-4628","authenticated-orcid":false,"given":"Duccio","family":"Piovani","sequence":"first","affiliation":[{"name":"Centre for Advanced Spatial Analysis, University College London, 90 Tottenham Court Road, London W1T 4TJ, UK"},{"name":"Nam.R, 4 rue Foucault, Paris 75116, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elsa","family":"Arcaute","sequence":"additional","affiliation":[{"name":"Centre for Advanced Spatial Analysis, University College London, 90 Tottenham Court Road, London W1T 4TJ, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriela","family":"Uchoa","sequence":"additional","affiliation":[{"name":"Centre for Advanced Spatial Analysis, University College London, 90 Tottenham Court Road, London W1T 4TJ, UK"},{"name":"Prefeitura Municipal de Teresina, Pra\u00e7a Marechal Deodoro da Fonseca 860, Teresina 64000-160, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alan","family":"Wilson","sequence":"additional","affiliation":[{"name":"Centre for Advanced Spatial Analysis, University College London, 90 Tottenham Court Road, London W1T 4TJ, UK"},{"name":"The Turing Institute, 96 Euston Road, London NW1 3DB, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9931-1305","authenticated-orcid":false,"given":"Michael","family":"Batty","sequence":"additional","affiliation":[{"name":"Centre for Advanced Spatial Analysis, University College London, 90 Tottenham Court Road, London W1T 4TJ, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2018,9,12]]},"reference":[{"key":"e_1_3_6_2_2","doi-asserted-by":"publisher","DOI":"10.2307\/2084520"},{"key":"e_1_3_6_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/0191-2615(83)90023-1"},{"key":"e_1_3_6_4_2","volume-title":"Discrete choice analysis: theory and application to travel demand","author":"Ben-Akiva ME","year":"1985"},{"key":"e_1_3_6_5_2","first-page":"108","article-title":"The use of entropy maximising models, in the theory of trip distribution, mode split and route split","volume":"3","author":"Wilson A","year":"1969","journal-title":"J. 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