{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T15:21:34Z","timestamp":1771946494997,"version":"3.50.1"},"reference-count":32,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2019,2,28]],"date-time":"2019-02-28T00:00:00Z","timestamp":1551312000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Institute of Information and Communications Technology in Japan","award":["178D02"],"award-info":[{"award-number":["178D02"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>Infrastructure management has become a serious problem in many cities. However, the monitoring of daily urban infrastructure requires active feedback, not only by municipal government officers, but also by citizens. In this study, we analyzed Chiba City\u2019s \u2018Chiba-repo\u2019 platform to measure citizen feedback and collaboration in urban infrastructure maintenance. We compiled data on over 40,000 citizen-generated reports of infrastructure issues during the period from September 2014 to December 2016 through the Chiba-repo platform and analyzed the geographical distribution and text mining by categorizing the reports. The most frequent report was about road issues, representing 93.8% of the total. As a result, many reports were received from citizens from a time-consuming report like light repairs (average 24.4 days); also, road issues were revealed to be a major town problem. On the other hand, the unsolved issue rate is lower (3.7%) compared with telephone correspondence and counter contact, since posting through the web application allows for a detailed report that includes position information and photographs. The research also predicted that many infrastructure problems would occur on narrow roads and in areas with many elderly people, and that road issue reports are regularly needed in areas that cannot be found or patrolled by administrative staff.<\/jats:p>","DOI":"10.3390\/ijgi8030115","type":"journal-article","created":{"date-parts":[[2019,3,1]],"date-time":"2019-03-01T03:33:00Z","timestamp":1551411180000},"page":"115","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Trends in Citizen-Generated and Collaborative Urban Infrastructure Feedback Data: Toward Citizen-Oriented Infrastructure Management in Japan"],"prefix":"10.3390","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0281-1790","authenticated-orcid":false,"given":"Toshikazu","family":"Seto","sequence":"first","affiliation":[{"name":"Center for Spatial Information Science, The University of Tokyo, Tokyo 153-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshihide","family":"Sekimoto","sequence":"additional","affiliation":[{"name":"Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,2,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1109\/MIC.2016.124","article-title":"Internet of Things for smart cities: Interoperability and open data","volume":"20","author":"Ahlgren","year":"2012","journal-title":"IEEE Internet Comput."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Kitchin, R., Lauriault, T.P., and McArdle, G. (2017). Data and the City, Routledge.","DOI":"10.4324\/9781315407388"},{"key":"ref_3","unstructured":"Townsend, A. (2013). Smart Cities: Big Data, Civic Hackers, and the Quest for a New Utopia, W.W. Norton & Co."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s10708-013-9516-8","article-title":"The real-time city? Big data and smart urbanism","volume":"79","author":"Kitchin","year":"2014","journal-title":"GeoJournal"},{"key":"ref_5","unstructured":"(2018, June 30). In United Kingdom Cabinet Office, G8 Open Data Charter and Technical Annex, Available online: https:\/\/www.gov.uk\/government\/publications\/open-data-charter\/g8-open-data-charter-and-technical-annex."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"388","DOI":"10.1016\/j.giq.2014.02.009","article-title":"The strategic importance of information policy for the contemporary neoliberal state: The case of open government data in the United Kingdom","volume":"31","author":"Bates","year":"2014","journal-title":"Gov. Inf. Q."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"667","DOI":"10.1007\/s10708-011-9416-8","article-title":"Motivations driving government adoption of the Geoweb","volume":"77","author":"Johnson","year":"2012","journal-title":"GeoJournal"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1016\/j.giq.2015.05.003","article-title":"Civic open data at a crossroads: Dominant models and current challenges","volume":"32","author":"Sieber","year":"2015","journal-title":"Gov. Inf. Q."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Kitchin, R. (2014). The Data Revolution: Big Data, Open Data, Data Infrastructures & Their Consequences, SAGE Publications Ltd.","DOI":"10.4135\/9781473909472"},{"key":"ref_10","first-page":"1","article-title":"The new ambiguity of \u201copen government\u201d","volume":"178","author":"Yu","year":"2012","journal-title":"59 UCLA L. Rev. Discourse"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"491","DOI":"10.1111\/j.1467-8306.2006.00702.x","article-title":"Public participation geographic information systems: A literature review and framework","volume":"96","author":"Sieber","year":"2006","journal-title":"Ann. Assoc. Am. Geogr."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"569","DOI":"10.1191\/030913200100189111","article-title":"Trouble in the heartland: GIS and its critics in the 1990s","volume":"24","author":"Schuurman","year":"2000","journal-title":"Prog. Hum. Geogr."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"300","DOI":"10.1080\/00087041.2016.1243862","article-title":"From mental maps to GeoParticipation","volume":"53","year":"2016","journal-title":"Cartogr. J."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1080\/00045608.2011.595657","article-title":"Researching volunteered geographic information: Spatial data, geographic research, and new social practice","volume":"102","author":"Elwood","year":"2012","journal-title":"Ann. Assoc. Am. Geogr."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"122","DOI":"10.1016\/j.apgeog.2013.11.004","article-title":"Key issues and research priorities for public participation GIS (PPGIS): A synthesis based on empirical research","volume":"46","author":"Brown","year":"2014","journal-title":"Appl. Geogr."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Sui, D.Z., Elwood, S., and Goodchild, M.F. (2014). Crowdsourcing Geographic Knowledge: Volunteered Geographic Information (VGI) in Theory and Practice, Springer.","DOI":"10.1007\/978-94-007-4587-2"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1007\/s10708-007-9111-y","article-title":"Citizens as Sensors: The World of Volunteered Geography","volume":"69","author":"Goodchild","year":"2007","journal-title":"GeoJournal"},{"key":"ref_18","unstructured":"Goldstein, B., Dyson, L., and Nemani, A. (2013). Beyond Transparency: Open Data and the Future of Civic Innovation, Code for America Press."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1145\/2756542","article-title":"Open data and civic apps: First-generation failures, second-generation improvements","volume":"59","author":"Lee","year":"2016","journal-title":"Commun. ACM"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.apgeog.2017.10.012","article-title":"Predicting demand for 311 non-emergency municipal services: An adaptive space-time kernel approach","volume":"89","author":"Xu","year":"2017","journal-title":"Appl. Geogr."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1093\/cjres\/rsu001","article-title":"Infrastructure legibility: A comparative analysis of Open311-based citizen feedback systems","volume":"8","author":"Offenhuber","year":"2014","journal-title":"Camb. J. Reg. Econ. Soc."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"18","DOI":"10.17645\/up.v1i2.621","article-title":"Characterizing new channels of communication: A case study of municipal 311 requests in Edmonton, Canada","volume":"1","author":"Lu","year":"2016","journal-title":"Urban Plan."},{"key":"ref_23","unstructured":"Zha, Y., and Veloso, M. (2014, January 28). Profiling and Prediction of Non-Emergency Calls in New York City. Proceedings of the AAAI 2014 Workshop on Semantic Cities: Beyond Open Data to Models, Standards and Reasoning, Qu\u00e9bec City, QC, Canada."},{"key":"ref_24","first-page":"1","article-title":"Comparing the distribution of open geospatial information between the cities of Japan and other countries","volume":"14","author":"Seto","year":"2015","journal-title":"CUPUM (Comput. Urban Plan. Urban Manag.) Conf. Pap."},{"key":"ref_25","unstructured":"(2018, September 08). Chiba-Repo Website. Available online: https:\/\/chibarepo.secure.force.com\/."},{"key":"ref_26","unstructured":"(2018, September 08). 2015 Population Census by Statistics Bureau, Ministry of Internal Affairs and Communications of Japan. Available online: http:\/\/www.stat.go.jp\/english\/data\/kokusei\/index.html."},{"key":"ref_27","first-page":"45","article-title":"Improvement of regional issues by citizen participation: The case of Chiba-repo","volume":"620","author":"Matsushima","year":"2017","journal-title":"Area Dev. Res."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"466","DOI":"10.1080\/01431161.2010.536185","article-title":"Persistent scatterers interferometry hotspot and cluster analysis (PSI-HCA) for detection of extremely slow-moving landslides","volume":"33","author":"Lu","year":"2011","journal-title":"Int. J. Remote Sens."},{"key":"ref_29","first-page":"77","article-title":"A two-step approach to quantitative content analysis: KH coder tutorial using Anne of Green Gables (Part I)","volume":"52","author":"Higuchi","year":"2016","journal-title":"Ritsumeikan Soc. Sci. Rev."},{"key":"ref_30","first-page":"137","article-title":"A two-step approach to quantitative content analysis: KH coder tutorial using Anne of Green Gables (Part II)","volume":"53","author":"Higuchi","year":"2017","journal-title":"Ritsumeikan Soc. Sci. Rev."},{"key":"ref_31","unstructured":"Richards, W.D., and Barnett, G.A. (1993). Network analysis of message content. Progress in Communication Sciences, ABC-CLIO, LLC."},{"key":"ref_32","first-page":"275","article-title":"Smart cities, urban technocrats, epistemic communities, advocacy coalitions and the \u2018last mile\u2019 problem","volume":"59","author":"Kitchin","year":"2016","journal-title":"IT Inf. Technol."}],"container-title":["ISPRS International Journal of Geo-Information"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2220-9964\/8\/3\/115\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T12:35:23Z","timestamp":1760186123000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2220-9964\/8\/3\/115"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,2,28]]},"references-count":32,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2019,3]]}},"alternative-id":["ijgi8030115"],"URL":"https:\/\/doi.org\/10.3390\/ijgi8030115","relation":{},"ISSN":["2220-9964"],"issn-type":[{"value":"2220-9964","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,2,28]]}}}