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A key element will be the creation of new systems that allow the acquisition of context information, automatically and transparently, in order to provide it to decision support systems. In this paper, we present a novel distributed system for obtaining, representing and providing the flow and movement of people in densely populated geographical areas. In order to accomplish these tasks, we propose the design of a smart sensor network based on RFID communication technologies, reliability patterns and integration techniques. Contrary to other proposals, this system represents a comprehensive solution that permits the acquisition of user information in a transparent and reliable way in a non-controlled and heterogeneous environment. This knowledge will be useful in moving towards the design of smart cities in which decision support on transport strategies, business evaluation or initiatives in the tourism sector will be supported by real relevant information. As a final result, a case study will be presented which will allow the validation of the proposal.<\/jats:p>","DOI":"10.3390\/s150613591","type":"journal-article","created":{"date-parts":[[2015,6,10]],"date-time":"2015-06-10T14:05:21Z","timestamp":1433945121000},"page":"13591-13626","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["A Computational Architecture Based on RFID Sensors for Traceability in Smart Cities"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8591-0710","authenticated-orcid":false,"given":"Higinio","family":"Mora-Mora","sequence":"first","affiliation":[{"name":"Specialized Processors Architecture Laboratory, Department of Computer Science Technology  and Computation, University of Alicante, 03690 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7711-5357","authenticated-orcid":false,"given":"Virgilio","family":"Gilart-Iglesias","sequence":"additional","affiliation":[{"name":"Specialized Processors Architecture Laboratory, Department of Computer Science Technology  and Computation, University of Alicante, 03690 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Gil","sequence":"additional","affiliation":[{"name":"Specialized Processors Architecture Laboratory, Department of Computer Science Technology  and Computation, University of Alicante, 03690 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alejandro","family":"Sirvent-Llamas","sequence":"additional","affiliation":[{"name":"Specialized Processors Architecture Laboratory, Department of Computer Science Technology  and Computation, University of Alicante, 03690 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,6,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1016\/j.cities.2013.12.010","article-title":"Current trends in Smart City initiatives: Some stylised facts","volume":"38","author":"Neirotti","year":"2014","journal-title":"Cities"},{"key":"ref_2","unstructured":"Smart Cities Council. 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