Darker nights, happier lives? The impact of urban green space night-time accessibility on residents' subjective happiness: A case study of the main urban area of Hangzhou
Yanyu Zheng , Xi Chen , Mingkan Zhang , Runze Zhu , Yang Jin
{"title":"Darker nights, happier lives? The impact of urban green space night-time accessibility on residents' subjective happiness: A case study of the main urban area of Hangzhou","authors":"Yanyu Zheng , Xi Chen , Mingkan Zhang , Runze Zhu , Yang Jin","doi":"10.1016/j.cities.2025.106510","DOIUrl":null,"url":null,"abstract":"<div><div>The impact of night-time service functions in urban green spaces on residents' happiness has long been overlooked. This study explores the concept of ‘darkness well-being’ to examine the relationship between the night-time accessibility of urban green spaces and residents' subjective happiness, thereby providing a scientific basis for night-time-friendly urban planning. Using Hangzhou's main urban area as a case study, a night-time accessibility index for urban green spaces is constructed by integrating night sky quality and accessibility models based on multi-source data. A spatial map of night-time urban happiness is generated using natural language processing techniques. A multi-scale (150/300/450/600/750 m) spatial radius analysis framework is constructed, incorporating spatial autocorrelation analysis, key factor evaluation and multi-scale spatial modelling. Three time-threshold scenarios (5/15/30 min) are considered for both walking and cycling modes. Systematic analysis reveals that the spatial distribution of the residents' happiness index and night-time accessibility of urban green spaces is highly heterogeneous across the study area under varying temporal and spatial conditions. The relationship between the night-time accessibility of urban green spaces and residents' subjective happiness is subject to scale effects. Night-time accessibility is a key determinant of happiness, exhibiting a significant positive spatial correlation at the 30-min walking and 5-min cycling thresholds.</div></div>","PeriodicalId":48405,"journal":{"name":"Cities","volume":"169 ","pages":"Article 106510"},"PeriodicalIF":6.6000,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cities","FirstCategoryId":"96","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0264275125008133","RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"URBAN STUDIES","Score":null,"Total":0}
引用次数: 0
Abstract
The impact of night-time service functions in urban green spaces on residents' happiness has long been overlooked. This study explores the concept of ‘darkness well-being’ to examine the relationship between the night-time accessibility of urban green spaces and residents' subjective happiness, thereby providing a scientific basis for night-time-friendly urban planning. Using Hangzhou's main urban area as a case study, a night-time accessibility index for urban green spaces is constructed by integrating night sky quality and accessibility models based on multi-source data. A spatial map of night-time urban happiness is generated using natural language processing techniques. A multi-scale (150/300/450/600/750 m) spatial radius analysis framework is constructed, incorporating spatial autocorrelation analysis, key factor evaluation and multi-scale spatial modelling. Three time-threshold scenarios (5/15/30 min) are considered for both walking and cycling modes. Systematic analysis reveals that the spatial distribution of the residents' happiness index and night-time accessibility of urban green spaces is highly heterogeneous across the study area under varying temporal and spatial conditions. The relationship between the night-time accessibility of urban green spaces and residents' subjective happiness is subject to scale effects. Night-time accessibility is a key determinant of happiness, exhibiting a significant positive spatial correlation at the 30-min walking and 5-min cycling thresholds.
期刊介绍:
Cities offers a comprehensive range of articles on all aspects of urban policy. It provides an international and interdisciplinary platform for the exchange of ideas and information between urban planners and policy makers from national and local government, non-government organizations, academia and consultancy. The primary aims of the journal are to analyse and assess past and present urban development and management as a reflection of effective, ineffective and non-existent planning policies; and the promotion of the implementation of appropriate urban policies in both the developed and the developing world.