Safety – Premise for play: Exploring how characteristics of outdoor play spaces in urban residential areas influence children's perceived safety

Cities, Journal Year: 2024, Volume and Issue: 152, P. 105236 - 105236

Published: July 3, 2024

Language: Английский

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Impact of Environmental Factors on Summer Thermal Comfort of Ribbon Waterfront Park in Hot Summer and Cold Winter Regions: A Case Study of Hefei

Sustainability, Journal Year: 2025, Volume and Issue: 17(7), P. 3026 - 3026

Published: March 28, 2025

Ribbon waterfront parks in hot summer and cold winter regions play a crucial role microclimate regulation thermal comfort enhancement due to the combined effects of water bodies vegetation. This study focuses on ribbon Hefei. investigates influence park environmental factors (e.g., plant community characteristics, spatial configuration bodies, plaza layouts) environment through field measurements ENVI-met numerical simulations. Based studies literature review, five were selected as test variables: body direction (S), tree planting density arrangement (A), square distribution form (B), location (C), pavement material (D). Using orthogonal testing, 64 different scenarios under four distinct orientations designed simulated using (Version 5.6.1), followed by quantitative analysis simulation results. The findings reveal that interaction between orientation prevailing wind significantly influences cooling efficiency both upwind downwind regions. In addition, Range Analysis (RA), variance (ANOVA), order magnitude effect each experimental factor Universal Thermal Climate Index (UTCI) can be derived: (A) > (D) (C) forms squares (B). Finally, this suggests various factor-setting schemes for are tailored microclimatic requirements. It also provides design recommendations improve based bodies. Furthermore, it offers specific references foundations planning, designing, optimising, renovating similar scales.

Language: Английский

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Mass housing planning and environmental considerations: case studies of post-war urban redevelopment in Erbil city, Kurdistan

Local Environment, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 21

Published: April 24, 2025

Language: Английский

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Construction of a Cold Island Spatial Pattern from the Perspective of Landscape Connectivity to Alleviate the Urban Heat Island Effect

ISPRS International Journal of Geo-Information, Journal Year: 2025, Volume and Issue: 14(6), P. 209 - 209

Published: May 23, 2025

This study presents an innovative approach to mitigating the urban heat island (UHI) effect by constructing a cold spatial pattern (CSP) from perspective of landscape connectivity, integrating three-dimensional (3D) morphology and meteorological factors for first time. Unlike traditional studies that focus on isolated patches or single-city scales, we propose hierarchical framework agglomerations, combining morphological analysis (MSPA), connectivity assessment, circuit theory construct CSP at scale agglomeration. By incorporating wind environment data 3D building features (e.g., height, density) into resistance surface, enhance accuracy cooling network identification, revealing 39 sources, 89 corridors, optimal corridor widths (600 m) in Changsha–Zhuzhou–Xiangtan agglomeration (CZXUA). Ultimately, three-tiered mitigation agglomerations was established based CSP. offers climate adaptability planning within context contemporary urbanization. Our methodology findings provide critical insights future integrate multiscale, multidimensional, climate-adaptive approaches thermal governance, fostering sustainable urbanization under escalating challenges.

Language: Английский

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The Impact of Different Types of Trees on Annual Thermal Comfort in Hot Summer and Cold Winter Areas

Forests, Journal Year: 2024, Volume and Issue: 15(11), P. 1880 - 1880

Published: Oct. 25, 2024

Trees positively improve the annual thermal comfort of built environment in tropical areas, where climate change is slight throughout year. However, for areas with high changes all year, current studies have only explored summer cooling performance trees without impact different types on comfort, especially cold seasons. Therefore, to quantify impacts and scientifically guide optimization green space layout hot winter this study selected Changsha City as area analyzed how affected by evergreen deciduous trees, which are two common areas. The analytical results indicated that difference effect outdoor was insignificant summer, monthly mean PET three months slight, being 0.28 °C, 0.14 0.29 respectively. greatly exacerbated compared a decrease nearly 1.0 °C an hourly reduced up 3.57 °C. mainly attributed absorption reflection solar radiation tree canopy, well humidifying leaf. In still “comfortable” “slightly warm” acceptable stage despite warming spring autumn Planting inevitable mitigation choice change, such China, empirical planting patterns selecting appropriate will year-round comfort.

Language: Английский

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Confort térmico adaptativo en cañón urbano: El caso de un clima mediterráneo

Ingeniería Investigación y Tecnología, Journal Year: 2024, Volume and Issue: 25(3), P. 1 - 11

Published: July 1, 2024

La naturaleza física del entorno urbano da lugar al fenomeno de la isla calor urbana (ICU), lo que propicia el ambiente térmico las ciudades sea incómodo aumentar temperatura aire (Ta) aproximadamente 0.4 °C año. Al carecer un adecuado, se limita uso los espacios exteriores. Dichos efectos dejan en evidencia importancia estudiar condiciones confort exterior, para establecer bases permitan toma decisiones proceso diseño y planificación urbana. El objetivo investigación consistió evaluar adaptativo a través sensación térmica peatón cañón área residencial. estudio realizó durante período transición frío cálido (primavera) Ensenada, Baja California, México. Se desarrolló correlacional, donde midieron distintas variables fisicas (Temperatura globo negro, bulbo seco, humedad relativa velocidad aire) aplicaron encuestas sobre térmica, cuales obtuvieron 211 observaciones, 114 (54.1 %) fueron respuestas hombres 97 (45.9 mujeres, con 18 30 años edad. análisis datos método Medias por Intervalo Sensación Térmica (MIST), observó fenómeno adaptación comportamiento sensaciones térmicas registradas rangos (reducido extenso) estimados desviaciones estándar (DS). rango reducido extenso fue 2.7 K 5.4 respectivamente; hígrica 13.2 % 26.3 viento 2.6 m/s 4.2 m/s, respectivamente.

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The Impact of Changes in Green Space Structures on Thermal Mitigation and Costs under a Constant Green Volume

Forests, Journal Year: 2024, Volume and Issue: 15(9), P. 1525 - 1525

Published: Aug. 29, 2024

Green space improves outdoor thermal comfort and promotes the residents’ physical mental health. Currently, many cities are using green volume indicators to evaluate quality of residential help form latest evaluation standards. However, from perspective plant volume, impact structures on mitigation has not been emphasized. Furthermore, cost will change with structures. Therefore, we changes in costs aim find suitable allocations which balance savings. This study analyzed regional climate Then, discussed relationship between different The analytical results indicated that as trees increases, also increasing. Where exceeds 70%, no “extreme heat stress” moments occur for whole day. When increases 20% 60%, is 3.62 °C. only 1.74 °C when 60% 100%, less than half former, numerically. suggests spaces should be controlled at 60%–70% corresponding shrubs 30%–40%. rationally balances space, directly guide planning real situations.

Language: Английский

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The Influence of Vegetation Environment on Thermal Experience in Hot Summer: A Case Study from Perspectives of Fitting Scale and Gender Disparity

Buildings, Journal Year: 2024, Volume and Issue: 14(10), P. 3036 - 3036

Published: Sept. 24, 2024

Vegetation exerts a significant cooling effect, particularly during the hot summer; however, spatial scale effects and gender difference among occupants’ subjective thermal comfort remain elusive. Developing comprehensive model to elucidate multidimensional relationship between green spaces experience holds paramount importance. Taking Longzi River Park in Zhengzhou city as case study, this research examined influence of vegetation on by using structural equation modeling (SEM) from perspectives fitting disparities. It was found that (1) The environment not only influences sensation, demand independently, but also pathway them. These paths constitute complex causal network, functioning framework “sensation → demand” its influencing factors. (2) There exists scaling effect framework, which conforms threshold 10 m for inner radius 30 outer radius. goodness SEM fit declines with increase either or radius, both. (3) Differences genders are exhibited exerting stronger female sensation comfort, well male demand. is more pronounced populations. findings contribute development improved sustainable distribution urban parks.

Language: Английский

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Effects of Urban Tree Species and Morphological Characteristics on the Thermal Environment: A Case Study in Fuzhou, China

Forests, Journal Year: 2024, Volume and Issue: 15(12), P. 2075 - 2075

Published: Nov. 25, 2024

Trees and their morphology can mitigate the urban heat island (UHI) effect, but impacts of tree species two-dimensional (2D) three-dimensional (3D) morphological characteristics on thermal environment residential spaces at building scale have not been effectively evaluated. This research extracted data trees in spatial range a 50 m radius sampling sites located subtropical humid city’s area based unmanned aerial vehicle (UAV) imagery field measurements. It included Ficus microcarpa L. f., Cinnamomum camphora (L.) J. Presl, Alstonia scholaris R. Br. as three typical evergreen six quantitative indicators trees, with number (N) serving fundamental indicator mean canopy width (MCW), height (MCH), (MTH), biomass (CV), (MCV) characteristic indicators. We analyzed impact above two parameters: Air temperature (AT) relative humidity (RH), by correlation analysis multiple linear regression analysis. Results showed that: (1) F. microcarpa, dominant local species, provided more than 65% volume within study (50 buffer zones), its contribution to cooling humidification effects was superior those C. A. scholaris. (2) The MTH CV are key factors influencing daytime AT RH, respectively, temporal fluctuation intensity during spring (May) daytime. (3) N show best effect (adjusted R2 = 0.731, p < 0.05) midday (13:00–14:00 p.m.), while 0.748, morning (9:00–10:00 a.m.) among species. 2D 3D describe variation microclimate small-scale spaces. work provides new insights into benefits brought growth features offers reference for areas planning management related selection, maintenance, improvement comfort inhabitants.

Language: Английский

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