{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T19:55:11Z","timestamp":1766087711252,"version":"build-2065373602"},"reference-count":50,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2021,4,26]],"date-time":"2021-04-26T00:00:00Z","timestamp":1619395200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>This work provides a follow-up to the article Walkability Index for Elderly Health: A Proposal, published in 2020. Previous research linked the quality of public spaces, walkability characteristics relevant to older people, and the direct health benefits of walking for the same target group. The present article, on the other hand, aims to validate the conceptual design of the walkability index for elderly health (WIEH), developed by the authors in the previous study, by applying it to a study area located in the historic center of Porto, Portugal. Therefore, public spaces and the pedestrian network are analyzed according to their suitability for older people\u2019s walkability. Presented in a visual format, the results show that only a few paths within the study area were strongly suited to older people, and emphasize the impact of existing steep slopes on the quality of the pedestrian network.<\/jats:p>","DOI":"10.3390\/su13094869","type":"journal-article","created":{"date-parts":[[2021,4,27]],"date-time":"2021-04-27T06:19:11Z","timestamp":1619504351000},"page":"4869","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["An Application of the Walkability Index for Elderly Health\u2014WIEH. The Case of the UNESCO Historic Centre of Porto, Portugal"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5993-528X","authenticated-orcid":false,"given":"Fernando","family":"Alves","sequence":"first","affiliation":[{"name":"Research Centre for the Territory, Transports and Environment, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1776-4985","authenticated-orcid":false,"given":"Sara","family":"Cruz","sequence":"additional","affiliation":[{"name":"Research Centre for the Territory, Transports and Environment, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal"}]},{"given":"Sophia","family":"Rother","sequence":"additional","affiliation":[{"name":"Fachhochschule Erfurt, 99085 Erfurt, Germany"}]},{"given":"Tino","family":"Strunk","sequence":"additional","affiliation":[{"name":"Fachhochschule Erfurt, 99085 Erfurt, Germany"}]}],"member":"1968","published-online":{"date-parts":[[2021,4,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1136\/postgradmedj-2012-131366","article-title":"Physical activity is medicine for older adults","volume":"90","author":"Taylor","year":"2014","journal-title":"Postgrad. 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Urban Health"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"6","DOI":"10.1016\/j.arr.2017.06.003","article-title":"Physical activity and healthy ageing: A systematic review and meta-analysis of longitudinal cohort studies","volume":"38","author":"Daskalopoulou","year":"2017","journal-title":"Ageing Res. Rev."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1080\/13574800802451155","article-title":"Measuring the Unmeasurable: Urban Design Qualities Related to Walkability","volume":"14","author":"Ewing","year":"2019","journal-title":"J. Urban Des."},{"doi-asserted-by":"crossref","unstructured":"Flores, R., Caballer, A., and Alarc\u00f3n, A. (2019). Evaluation of an Age-Friendly City and Its Effect on Life Satisfaction: A Two-Stage Study. Int. J. Environ. Res. Public Health, 16.","key":"ref_8","DOI":"10.3390\/ijerph16245073"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"274","DOI":"10.1057\/udi.2015.22","article-title":"What is a walkable place? The walkability debate in urban design","volume":"20","author":"Forsyth","year":"2015","journal-title":"Urban Des. Int."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"401","DOI":"10.1007\/BF03391609","article-title":"Physical Activity for an Aging Population","volume":"32","author":"King","year":"2010","journal-title":"Public Health Rev."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1111\/j.1467-940X.2011.00176.x","article-title":"Principles for the implementation of a pedestrian plan in medium size cities","volume":"23","author":"Alves","year":"2011","journal-title":"Rev. Urban Reg. Dev. Stud."},{"key":"ref_12","first-page":"59","article-title":"Redefining place for walking: A literature review and key-elements conception","volume":"11","author":"Nuzir","year":"2016","journal-title":"Theor. Empir. Res. Urban Manag."},{"doi-asserted-by":"crossref","unstructured":"Alves, F., Cruz, S., Ribeiro, A., Silva, A.B., Martins, J., and Cunha, I. (2020). Walkability Index for Elderly Health: A Proposal. Sustainability, 12.","key":"ref_13","DOI":"10.3390\/su12187360"},{"doi-asserted-by":"crossref","unstructured":"Fatima, K., Moridpour, S., De Gruyter, C., and Saghapour, T. (2020). Elderly Sustainable Mobility: Scientific Paper Review. Sustainability, 12.","key":"ref_14","DOI":"10.3390\/su12187319"},{"doi-asserted-by":"crossref","unstructured":"Goodman, R., and Tolley, R. (2003). The Decline of Everyday Walking in the UK: Explanations and Policy Implications, Woodhead Publishing.","key":"ref_15","DOI":"10.1016\/B978-1-85573-614-6.50012-4"},{"unstructured":"WHO World Health Organization (2021, February 04). WHO Guidelines on Physical Activity and Sedentary Behavior. Available online: https:\/\/www.who.int\/publications\/i\/item\/9789240015128.","key":"ref_16"},{"unstructured":"Ministry of Health (2021, February 04). Guidelines on Physical Activity for Older People (Aged 65 and Over), Available online: https:\/\/www.health.govt.nz\/system\/files\/documents\/publications\/guidelines-on-physical-activity-older-people-jan13-v3.pdf.","key":"ref_17"},{"unstructured":"R\u00fctten, A., and Pfeifer, K. (2021, February 04). Nationale Empfehlungen f\u00fcr Bewegung und Bewegungsf\u00f6rderung 2016. Available online: https:\/\/www.bundesgesundheitsministerium.de\/service\/begriffe-von-a-z\/b\/bewegungsempfehlungen.html#:~:text=Mit%20den%20%22Nationalen%20Empfehlungen%20f%C3%BCr,unterschiedlichen%20Lebenswelten%20gef%C3%B6rdert%20werden%20kann.","key":"ref_18"},{"unstructured":"Department of Health and Social Care (2021, February 09). UK Chief Medical Officers\u2019 Physical Activity Guidelines, Available online: https:\/\/www.gov.uk\/government\/publications\/physical-activity-guidelines-uk-chief-medical-officers-report.","key":"ref_19"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"834","DOI":"10.1177\/1359105315616470","article-title":"Promoting walking in older adults: Perceived neighborhood walkability influences the effectiveness of motivational messages","volume":"22","author":"Notthoff","year":"2017","journal-title":"J. Health Psychol."},{"doi-asserted-by":"crossref","unstructured":"Flade, A., Limbourg, M., and Schlag, B. (2001). \u00c4ltere Menschen zu Fu\u00df und mit dem Fahrrad. Mobilit\u00e4t \u00c4lterer Menschen, Springer Fachmedien.","key":"ref_21","DOI":"10.1007\/978-3-663-10820-7"},{"unstructured":"Gorrini, A., and Bandini, S. (2018, January 20\u201323). Elderly walkability index through GIS: Towards advanced aI-based simulation models. Proceedings of the 17th International Conference of the Italian Association for Artificial Intelligence, Trento, Italy.","key":"ref_22"},{"key":"ref_23","first-page":"21","article-title":"Demografische Entwicklung und zuk\u00fcnftige Mobilit\u00e4t","volume":"Volume 7","author":"Schlag","year":"2013","journal-title":"Mobilit\u00e4t und Demografische Entwicklung"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1016\/j.trf.2018.09.016","article-title":"Observation results on pedestrian-vehicle interactions at non-signalized intersections towards simulation","volume":"59","author":"Gorrini","year":"2018","journal-title":"Transp. Res. Part F Traffic Psychol. Behav."},{"key":"ref_25","first-page":"1","article-title":"Age and Group-driven Pedestrian Behavior: From Observations to Simulations","volume":"1","author":"Gorrini","year":"2016","journal-title":"Collect. Dyn."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1134","DOI":"10.1016\/j.trpro.2016.05.184","article-title":"Barriers and their Influence on the Mobility Behavior of Elder Pedestrians in Urban Areas: Challenges and Best Practice for Walkability in the City of Vienna","volume":"14","author":"Strohmeier","year":"2016","journal-title":"Transp. Res. Procedia"},{"unstructured":"Garrard, J. (2021, February 10). Senior Victorians and Walking: Obstacles and Opportunities, Final Report. Available online: https:\/\/www.victoriawalks.org.au\/Assets\/Files\/FINALSeniorsFullReport.pdf.","key":"ref_27"},{"doi-asserted-by":"crossref","unstructured":"Zeng, F., and Schen, Z. (2020). Study on the Impact of Historic District Built Environment and its Influence on Resident\u2019s Walking Trips: A Case Study of Zhangzhou Ancient City\u2019s Historic District. Int. J. Environ. Res. Public Health, 17.","key":"ref_28","DOI":"10.3390\/ijerph17124367"},{"doi-asserted-by":"crossref","unstructured":"Papageorgiou, G., Prodromou, M., Christou, G., and Maimaris, A. (2020, January 27\u201329). Exploring the potential for developing a smart pedestrian navigation system for the Elderly market. Proceedings of the 6th International Conference on Information Management (ICIM), London, UK.","key":"ref_29","DOI":"10.1109\/ICIM49319.2020.245371"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"290","DOI":"10.1080\/13574809.2018.1551055","article-title":"Automotive retrofits in historic city centers and their potential effects on their walkability: A comparison of San Luis Obispo, CA, USA and Bath, England, UK","volume":"24","author":"Bass","year":"2019","journal-title":"J. Urban Des."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1080\/13574800701306328","article-title":"City Centre Revitalization in Portugal: A Study of Lisbon and Porto","volume":"12","author":"Balsas","year":"2007","journal-title":"J. Urban Des."},{"key":"ref_32","first-page":"e4","article-title":"The development of walkability in the historic center of Enna: The case of the Saint Tommaso neighborhood","volume":"73","author":"Campisi","year":"2019","journal-title":"Eur. Transp."},{"unstructured":"American Heart Association (2021, February 15). Know Your Target Heart Rates for Exercise, Losing Weight and Health. Available online: https:\/\/www.heart.org\/en\/healthy-living\/fitness\/fitness-basics\/target-heart-rates.","key":"ref_33"},{"unstructured":"Mazuroski, A. (2018). Mobilidade Pedonal Urbana\u2014Contribui\u00e7\u00f5es Para o Planeamento e Auditoria do Espa\u00e7o P\u00fablico na Mobilidade de Idosos. [Master\u2019s Thesis, School of Science and Technology, Universidade Nova de Lisboa].","key":"ref_34"},{"doi-asserted-by":"crossref","unstructured":"Menor-Campos, A., P\u00e9rez-G\u00e1lvez, J.C., Hidalgo-Fern\u00e1ndez, A., and L\u00f3pez-Guzm\u00e1n, T. (2020). Foreign tourists in world heritage sites: A motivation-based segmentation. Sustainability, 12.","key":"ref_35","DOI":"10.3390\/su12083263"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"521","DOI":"10.1177\/0047287516643413","article-title":"The Puzzle of Tourism Demand at Destinations Hosting UNESCO World Heritage Sites: An Analysis of Tourism Flows for Italy","volume":"56","author":"Ribaudo","year":"2016","journal-title":"J. Travel Res."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1177\/0047287518821737","article-title":"Does Designation as a UNESCO World Heritage Site Influence Tourist Evaluation of a Local Designation?","volume":"59","author":"Mariani","year":"2019","journal-title":"J. Travel Res."},{"key":"ref_38","first-page":"48","article-title":"Franchising our heritage: The UNESCO World Heritage brand","volume":"24","author":"Adie","year":"2017","journal-title":"Tour. Manag. Perspect."},{"doi-asserted-by":"crossref","unstructured":"Garc\u00eda, M., Calle-Vaquero, M., and Yubero, C. (2017). Cultural Heritage and Urban Tourism: Historic City Centers under Pressure. Sustainability, 9.","key":"ref_39","DOI":"10.3390\/su9081346"},{"key":"ref_40","first-page":"49","article-title":"Motivation-based cluster analysis of international tourists visiting a World Heritage City: The case of Porto, Portugal","volume":"8","author":"Ramires","year":"2018","journal-title":"J. Destin. Mark. Manag."},{"unstructured":"UrbiStat, S.R.L. (2021, January 26). Mappe, Analisi e Statistiche Sulla Popolazione Residente. Available online: https:\/\/ugeo.urbistat.com\/AdminStat\/en\/pt\/demografia\/eta\/porto\/20320039.","key":"ref_41"},{"unstructured":"City Population (2021, January 26). Portugal: Regionen und St\u00e4dte. Available online: https:\/\/www.citypopulation.de\/de\/portugal\/cities\/.","key":"ref_42"},{"unstructured":"UNESCO World Heritage Centre 1992\u20132021 (2021, January 22). Historic Center of Oporto, Luiz I Bridge and Monastery of Serra do Pilar. Available online: https:\/\/whc.unesco.org\/en\/list\/755.","key":"ref_43"},{"unstructured":"Municipality of Porto (2021, March 22). Porto Reference Site for Healthy Ageing in the European Union. Available online: https:\/\/www.porto.pt\/en\/news\/porto_is_a_reference_site_for_healthy_ageing_in_the_european_union.","key":"ref_44"},{"unstructured":"(2021, January 14). Mobi Age Promotion of Urban Mobility for Aged Populations. Available online: https:\/\/mobiage.dec.uc.pt\/project\/.","key":"ref_45"},{"unstructured":"Geofabrik GmbH (2020, November 02). Portugal. Available online: https:\/\/download.geofabrik.de\/europe\/portugal.html.","key":"ref_46"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1080\/01441647.2014.893038","article-title":"A Review of the Evolution of Shared (Street) Space Concepts in Urban Environments","volume":"34","author":"Karndacharuk","year":"2014","journal-title":"Transp. Rev."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"1","DOI":"10.3141\/2393-01","article-title":"Analysis of Pedestrian Performance in Shared-Space Environments","volume":"1","author":"Karndacharuk","year":"2013","journal-title":"Transp. Res. Rec."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1057\/s41289-016-0036-2","article-title":"Shared space streets: Design, user perception and performance","volume":"22","author":"Karimi","year":"2017","journal-title":"Urban Des. Int."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"132","DOI":"10.1177\/0264619612456242","article-title":"Accessibility of Shared Space for visually impaired persons: An inventory in the Netherlands","volume":"30","author":"Havik","year":"2012","journal-title":"Br. J. Vis. 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