{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T04:44:22Z","timestamp":1780461862421,"version":"3.54.1"},"reference-count":30,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2020,12,15]],"date-time":"2020-12-15T00:00:00Z","timestamp":1607990400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>Many cities around the world face the challenge of an aging population. A full understanding of the mobility behavior characteristics of the elderly is one necessary and urgent consideration as regards the current aging trend if sustainable urban development is to be fully realized. This paper presents a systematic approach to analyzing the dynamic mobility characteristics of the elderly who travel by bus using smart card big data. The characteristics include temporal distribution, travel distance, travel duration, travel frequency, and also the spatial distribution of such travelers. The findings of these mobility characteristics can directly contribute to both public transport policy making, service, and management. In this study, the analytics of the elderly are also compared with that of the average adult group so as to identify both the similarities and differences between the two groups. Beijing, a megacity, with a very high life expectancy and in which the bus is the dominant mode of public transport for the elderly, was used as the study area. The significance of this research concerns a newly developed systematic approach that is able to analyze the dynamic mobility characteristics of the elderly using smart card data.<\/jats:p>","DOI":"10.3390\/ijgi9120751","type":"journal-article","created":{"date-parts":[[2020,12,15]],"date-time":"2020-12-15T09:12:57Z","timestamp":1608023577000},"page":"751","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Analysis of the Temporal Characteristics of the Elderly Traveling by Bus Using Smart Card Data"],"prefix":"10.3390","volume":"9","author":[{"given":"Zhicheng","family":"Shi","sequence":"first","affiliation":[{"name":"The Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6024-2429","authenticated-orcid":false,"given":"Lilian S. C.","family":"Pun-Cheng","sequence":"additional","affiliation":[{"name":"The Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7323-9878","authenticated-orcid":false,"given":"Xintao","family":"Liu","sequence":"additional","affiliation":[{"name":"The Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3189-8872","authenticated-orcid":false,"given":"Jianhui","family":"Lai","sequence":"additional","affiliation":[{"name":"College of Metropolitan Transportation, Beijing University of Technology, Beijing 100124, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chengzhuo","family":"Tong","sequence":"additional","affiliation":[{"name":"The Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7158-8292","authenticated-orcid":false,"given":"Anshu","family":"Zhang","sequence":"additional","affiliation":[{"name":"The Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1643-5271","authenticated-orcid":false,"given":"Min","family":"Zhang","sequence":"additional","affiliation":[{"name":"The Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenzhong","family":"Shi","sequence":"additional","affiliation":[{"name":"The Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,12,15]]},"reference":[{"key":"ref_1","first-page":"240","article-title":"Urban sustainability in the context of Lagos mega-city","volume":"3","author":"Ilesanmi","year":"2010","journal-title":"J. Geogr. Reg. Plan."},{"key":"ref_2","unstructured":"United Nations (2019). World Urbanization Prospects 2018: Highlights (ST\/ESA\/SER.A\/421), Department of Economic and Social Affairs."},{"key":"ref_3","unstructured":"United Nations (2019). World Population Prospects 2019: Highlights (ST\/ESA\/SER.A\/423), Department of Economic and Social Affairs."},{"key":"ref_4","unstructured":"United Nations (2020). World Population Ageing 2019 (ST\/ESA\/SER.A\/444), Department of Economic and Social Affairs."},{"key":"ref_5","unstructured":"Beijing Committee on Aging (2018). White Papers of Development of Aging Service and Care System Construction in Beijing, Beijing Committee for Old Population."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1145\/2743025","article-title":"Trajectory data mining: An overview","volume":"6","author":"Zheng","year":"2015","journal-title":"ACM Trans. Intell. Syst. Technol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1145\/2641190.2641195","article-title":"Mining social media with social theories: A survey","volume":"15","author":"Tang","year":"2014","journal-title":"ACM SIGKDD Explor. Newsl."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"779","DOI":"10.1038\/nature06958","article-title":"Understanding individual human mobility patterns","volume":"453","author":"Gonzalez","year":"2008","journal-title":"Nature"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"818","DOI":"10.1038\/nphys1760","article-title":"Modelling the scaling properties of human mobility","volume":"6","author":"Song","year":"2010","journal-title":"Nature Phys."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1018","DOI":"10.1126\/science.1177170","article-title":"Limits of predictability in human mobility","volume":"327","author":"Song","year":"2010","journal-title":"Science"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1080\/12265934.2016.1262785","article-title":"Travel behaviour and mobility needs of older adults in an ageing and car-dependent society","volume":"21","author":"Cui","year":"2017","journal-title":"Int. J. Urban Sci."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.retrec.2011.12.004","article-title":"Rural transport\u2013Valuing the mobility of older people","volume":"34","author":"Ahern","year":"2012","journal-title":"Res. Transp. Econ."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"831","DOI":"10.1007\/s11116-016-9680-z","article-title":"Elderly travel frequencies and transport mode choices in Greater Rotterdam, the Netherlands","volume":"44","author":"Helbich","year":"2017","journal-title":"Transportation"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.jtrangeo.2013.09.001","article-title":"Travel behaviors, sustainable mobility, and transit-oriented developments: A travel counts analysis of older adults in the Denver, Colorado metropolitan area","volume":"33","author":"Boschmann","year":"2013","journal-title":"J. Transp. Geogr."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"461","DOI":"10.1016\/j.jsr.2003.10.001","article-title":"The 2001 national household travel survey: A look into the travel patterns of older Americans","volume":"34","author":"Collia","year":"2003","journal-title":"J. Saf. Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"422","DOI":"10.1016\/j.trf.2011.04.011","article-title":"Assessing mobility in an aging society: Personal and built environment factors associated with older people\u2019s subjective transportation deficiency in the US","volume":"14","author":"Kim","year":"2011","journal-title":"Transp. Res. Part F Traffic Psychol. Behav."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"148","DOI":"10.1016\/j.tbs.2014.12.004","article-title":"Exploring frequency of public transport use among older adults: A study in Adelaide, Australia","volume":"2","author":"Truong","year":"2015","journal-title":"Travel Behav. Soc."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"468","DOI":"10.1175\/WCAS-D-13-00066.1","article-title":"Integrated weather effects on cycling shares, frequencies, and durations in Rotterdam, the Netherlands","volume":"6","author":"Thorsson","year":"2014","journal-title":"Weather Clim. Soc."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.habitatint.2018.05.007","article-title":"Modeling the mobility choices of older people in a transit-oriented city: Policy insights","volume":"76","author":"Yang","year":"2018","journal-title":"Habitat Int."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"608","DOI":"10.1016\/j.tra.2018.09.006","article-title":"Travel mobility and social participation among older people in a transit metropolis: A socio-spatial-temporal perspective","volume":"118","author":"He","year":"2018","journal-title":"Transp. Res. Part A Policy Pract."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1023","DOI":"10.1007\/s12205-016-0651-x","article-title":"Mobility characteristics of the elderly: A case for Seoul Metropolitan Area","volume":"20","author":"Choo","year":"2016","journal-title":"KSCE J. Civ. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1016\/j.jtrangeo.2016.09.010","article-title":"Trip making of older adults in Seoul: Differences in effects of personal and household characteristics by age group and trip purpose","volume":"57","author":"Hahn","year":"2016","journal-title":"J. Transp. Geogr."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1016\/j.jtrangeo.2019.03.010","article-title":"Active travel for active ageing in China: The role of built environment","volume":"76","author":"Cheng","year":"2019","journal-title":"J. Transp. Geogr."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1016\/j.jtrangeo.2019.04.002","article-title":"Analysis of elderly people\u2019s travel behaviours during the morning peak hours in the context of the free bus programme in Beijing, China","volume":"76","author":"Zhang","year":"2019","journal-title":"J. Transp. Geogr."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.tbs.2017.07.005","article-title":"Spatio-temporal travel characteristics of the elderly in an ageing society","volume":"9","author":"Szeto","year":"2017","journal-title":"Travel Behav. Soc."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"062023","DOI":"10.1088\/1755-1315\/189\/6\/062023","article-title":"Analysis of Public Transportation Travel Characteristics of the Elderly based on IC Card Big Data-Taking Qingdao as an Example","volume":"189","author":"Chen","year":"2018","journal-title":"IOP Conf. Ser. Earth Environ. Sci."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"178","DOI":"10.1016\/j.jtrangeo.2019.04.001","article-title":"Spatio-temporal travel patterns of elderly people\u2013A comparative study based on buses usage in Qingdao, China","volume":"76","author":"Shao","year":"2019","journal-title":"J. Transp. Geogr."},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Liu, W., Lu, H., Sun, Z., and Liu, J. (2017). Elderly\u2019s travel patterns and trends: The empirical analysis of Beijing. Sustainability, 9.","DOI":"10.3390\/su9060981"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"482","DOI":"10.1080\/00330124.2012.700499","article-title":"Head\/tail breaks: A new classification scheme for data with a heavy-tailed distribution","volume":"65","author":"Jiang","year":"2013","journal-title":"Prof. Geogr."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"6","DOI":"10.1007\/s41651-017-0009-z","article-title":"How complex is a fractal? Head\/tail breaks and fractional hierarchy","volume":"2","author":"Jiang","year":"2018","journal-title":"J. Geovisualization Spat. Anal."}],"container-title":["ISPRS International Journal of Geo-Information"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2220-9964\/9\/12\/751\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T10:45:12Z","timestamp":1760179512000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2220-9964\/9\/12\/751"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,12,15]]},"references-count":30,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2020,12]]}},"alternative-id":["ijgi9120751"],"URL":"https:\/\/doi.org\/10.3390\/ijgi9120751","relation":{},"ISSN":["2220-9964"],"issn-type":[{"value":"2220-9964","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,12,15]]}}}