Intelligent Extraction of Urban Ventilation Corridors Based on Region Growth Algorithm with Restricted Direction

Intelligent Extraction of Urban Ventilation Corridors Based on Region Growth Algorithm with Restricted Direction | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Intelligent Extraction of Urban Ventilation Corridors Based on Region Growth Algorithm with Restricted Direction Chenlu Zhao This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5796771/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 15 May, 2025 Read the published version in Scientific Reports → Version 1 posted 8 You are reading this latest preprint version Abstract Rapid urban developments have resulted in numerous environmental challenges, including severe air quality and heat island effect problems. The construction of urban ventilation corridors provides an effective solution for enhancing air circulation and reducing the heat island effect. The present study focuses on Nanhu District, Jiaxing City, Zhejiang Province, employing Unmanned Aerial Vehicle (UAV) tilt photography to obtain high-resolution urban remote sensing data and create a three-dimensional digital model of the city. Wind direction and speed over the past decade were analyzed in the proposed study area. Dominant wind directions were identified for both summer and winter seasons to calculate frontal area density (FAD) under dominant wind directions, while an area growth method was applied with limited direction to determine urban ventilation corridors. The experimental results show two ventilation corridors under the winter-dominant wind direction and four under the summer-dominant wind direction. The results were validated against fieldwork conducted by three urban planning experts, with an error rate of 4.91% and 4.57% on a digital map. Eventually, this study will provide a tangible scientific foundation and technical support for the planning and construction of urban ventilation corridors to mitigate the heat island effect and improve air quality. Earth and environmental sciences/Climate sciences Earth and environmental sciences/Environmental sciences oblique photography urban wind environment ventilation corridors direction-constrained area growth method urbanization Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 15 May, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 17 Apr, 2025 Reviews received at journal 14 Apr, 2025 Reviewers agreed at journal 02 Apr, 2025 Reviews received at journal 01 Apr, 2025 Reviewers agreed at journal 01 Apr, 2025 Reviewers invited by journal 28 Mar, 2025 Submission checks completed at journal 25 Mar, 2025 First submitted to journal 17 Mar, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5796771","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":435460435,"identity":"7090f8fa-7f59-4626-a96c-54ce8859eb95","order_by":0,"name":"Chenlu Zhao","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAvElEQVRIiWNgGAWjYDACCRBRYJNgAKJ5iNdikEa6lsMkaJGf3fzwwQ+D83nmEgmMD962McibE9LCOOeYsWGPwe1iyxkJzIZz2xgMdzYQ0MIskWAmzWBwO3HDjQQ2ad42hgSDAwS0sEmkfwNqOQfSwv6bKC08EjkgWw6AbWEmSouERE4x0C/JiRvOPGyWnHNOwnADIS3yM9I3PvhRYZe44XjywQ9vymzkCdqCBBgbGKDRNApGwSgYBaOAUgAADMg9KPBR+rIAAAAASUVORK5CYII=","orcid":"","institution":"HoHai University","correspondingAuthor":true,"prefix":"","firstName":"Chenlu","middleName":"","lastName":"Zhao","suffix":""}],"badges":[],"createdAt":"2025-01-09 13:09:30","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5796771/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5796771/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1038/s41598-025-01804-7","type":"published","date":"2025-05-15T15:57:45+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":83068134,"identity":"b9683afd-db53-448d-a352-7ded27f7fc3d","added_by":"auto","created_at":"2025-05-19 16:10:09","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1458615,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5796771/v1_covered_ec1eaf0f-efe5-4aa5-a0e6-b5fc056fcfb1.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Intelligent Extraction of Urban Ventilation Corridors Based on Region Growth Algorithm with Restricted Direction","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"oblique photography, urban wind environment, ventilation corridors, direction-constrained area growth method, urbanization","lastPublishedDoi":"10.21203/rs.3.rs-5796771/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5796771/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eRapid urban developments have resulted in numerous environmental challenges, including severe air quality and heat island effect problems. 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