{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,15]],"date-time":"2024-08-15T21:07:04Z","timestamp":1723756024896},"reference-count":29,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2017,1,1]],"date-time":"2017-01-01T00:00:00Z","timestamp":1483228800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"INTERREG North-West Europe Project New Integrated Smart Transport Options"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Mobile Information Systems"],"published-print":{"date-parts":[[2017]]},"abstract":"Human travel behaviour has been addressed in many transport studies, where travel survey methods have been widely used to collect self-reported insights of daily mobility patterns. However, since the introduction of Global Navigation Satellite Systems (GNSS) and more recently smartphones with built-in GNSS, researchers have adopted these ubiquitous devices as tools for collecting mobility behaviour data. Although most studies recognize the applicability of this technology, it still has limitations. These are rarely addressed in a quantified manner. Often the quality of the collected data tends to be overestimated and these errors propagate into the aggregated results providing incomplete knowledge of the levels of confidence of the results and conclusions. In this study, we focus on the completeness aspects of data quality using GNSS data from four campaigns in the Flanders region of Belgium. The empirical results are based on mobility behaviour data collected through smartphones and include more than 450 participants over a period of twenty-nine months. Our findings show which transport mode is affected the most and how land use affects the quality of the collected data. In addition, we provide insights into the time to first fix that can be used for a better estimation of travel patterns.<\/jats:p>","DOI":"10.1155\/2017\/4043237","type":"journal-article","created":{"date-parts":[[2017,6,21]],"date-time":"2017-06-21T17:03:49Z","timestamp":1498064629000},"page":"1-11","source":"Crossref","is-referenced-by-count":6,"title":["Assessment of Smartphone Positioning Data Quality in the Scope of Citizen Science Contributions"],"prefix":"10.1155","volume":"2017","author":[{"ORCID":"http:\/\/orcid.org\/0000-0002-9080-4859","authenticated-orcid":true,"given":"Angel J.","family":"Lopez","sequence":"first","affiliation":[{"name":"Department of Telecommunications and Information Processing, Ghent University, St-Pietersnieuwstraat 41, 9000 Ghent, Belgium"},{"name":"Facultad de Ingenier\u00eda en Electricidad y Computaci\u00f3n, Escuela Superior Polit\u00e9cnica del Litoral (ESPOL), Campus Gustavo Galindo, Km 30.5 V\u00eda Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador"}]},{"given":"Ivana","family":"Semanjski","sequence":"additional","affiliation":[{"name":"Department of Telecommunications and Information Processing, Ghent University, St-Pietersnieuwstraat 41, 9000 Ghent, Belgium"}]},{"ORCID":"http:\/\/orcid.org\/0000-0001-5628-6974","authenticated-orcid":true,"given":"Sidharta","family":"Gautama","sequence":"additional","affiliation":[{"name":"Department of Telecommunications and Information Processing, Ghent University, St-Pietersnieuwstraat 41, 9000 Ghent, Belgium"}]},{"ORCID":"http:\/\/orcid.org\/0000-0003-2707-7457","authenticated-orcid":true,"given":"Daniel","family":"Ochoa","sequence":"additional","affiliation":[{"name":"Facultad de Ingenier\u00eda en Electricidad y Computaci\u00f3n, Escuela Superior Polit\u00e9cnica del Litoral (ESPOL), Campus Gustavo Galindo, Km 30.5 V\u00eda Perimetral, P.O. 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