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In this paper we focus on taxicab moving trajectory records and present a new approach to modeling and analyzing urban mobility dynamics. The proposed method comprises two phases. First, discrete space partition based on flexible grid is developed to divide urban environment into finite nonoverlapping subregions. By integrating mobility origin-destination points with covered region, the partitioned discrete subregions have better spatial semantics scalability. Then, we study mobility activity and its distribution randomness during given time periods among discrete subregions. Moreover, we also carry out the analysis of mobility linkage of mobility trips between different regions by O-D matrix. We present a case study with real dataset of taxicab mobility logs in Shenzhen, China, to demonstrate and evaluate the methodology. The experimental results show that the proposed method outperforms the clustering partition and regular partition methods. <\/jats:p>","DOI":"10.1155\/2014\/782649","type":"journal-article","created":{"date-parts":[[2014,1,20]],"date-time":"2014-01-20T21:04:50Z","timestamp":1390251890000},"page":"782649","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Urban Mobility Dynamics Based on Flexible Discrete Region Partition"],"prefix":"10.1177","volume":"10","author":[{"given":"Liang","family":"Wang","sequence":"first","affiliation":[{"name":"Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100039, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kunyuan","family":"Hu","sequence":"additional","affiliation":[{"name":"Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"Ku","sequence":"additional","affiliation":[{"name":"Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junwei","family":"Wu","sequence":"additional","affiliation":[{"name":"Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100039, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2014,1,20]]},"reference":[{"key":"B1-2014-782649","doi-asserted-by":"publisher","DOI":"10.1145\/2030080.2030086"},{"key":"B2-2014-782649","doi-asserted-by":"publisher","DOI":"10.1145\/2063212.2063215"},{"key":"B3-2014-782649","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-16917-5_9"},{"key":"B5-2014-782649","doi-asserted-by":"publisher","DOI":"10.1504\/IJBIDM.2010.030296"},{"first-page":"943","volume-title":"Proceedings of the ACM Conference on Ubiquitous Computing (UbiComp '12)","author":"Zhang W.","key":"B4-2014-782649"},{"key":"B18-2014-782649","doi-asserted-by":"publisher","DOI":"10.1016\/j.physa.2010.10.033"},{"volume-title":"Proceedings of the 11th International Conference on Computers in Urban Planning and Urban Management (CUPUM '09)","author":"Liu L.","key":"B6-2014-782649"},{"key":"B7-2014-782649","doi-asserted-by":"publisher","DOI":"10.1068\/b32047"},{"key":"B8-2014-782649","doi-asserted-by":"publisher","DOI":"10.1109\/MPRV.2007.53"},{"key":"B9-2014-782649","doi-asserted-by":"publisher","DOI":"10.1038\/nature07850"},{"key":"B17-2014-782649","doi-asserted-by":"publisher","DOI":"10.1016\/j.trc.2012.09.009"},{"key":"B20-2014-782649","doi-asserted-by":"publisher","DOI":"10.1080\/15501320601069499"},{"key":"B10-2014-782649","doi-asserted-by":"publisher","DOI":"10.1126\/science.1177170"},{"key":"B12-2014-782649","doi-asserted-by":"publisher","DOI":"10.1109\/MPRV.2011.41"},{"key":"B13-2014-782649","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2007.912336"},{"first-page":"57","volume-title":"Proceedings of the 10th International Conference (Pervasive '12)","author":"Castro P. 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