Evaluating the role of the albedo of material and vegetation scenarios along the urban street canyon for improving pedestrian thermal comfort outdoors

Mohammad, Pir; Aghlmand, Soheila; Fadaei, Ashkan; Gachkar, Sadaf; Gachkar, Darya; Karimi, Alireza

doi:10.1016/j.uclim.2021.100993

Cited by 70 publications

(29 citation statements)

References 105 publications

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“…These data were used as input to perform the simulations for both the base and the NBS scenario. The results show that data from the simulation overestimate the air temperature when compared to local measurements, and this difference can be justified by the use of the simple forcing method, in which the program forces the behavior of the climatic parameters during the day across the simulation area, not only including the data collection location, based on their maximum and minimum values used for the simulation input [52,53]. Nonetheless, the data follow a similar profile to the Pearson correlation between the two datasets, which is strong (0.777).…”

Section: Model Input Datamentioning

confidence: 99%

The Use of Envi-Met for the Assessment of Nature-Based Solutions’ Potential Benefits in Industrial Parks—A Case Study of Argales Industrial Park (Valladolid, Spain)

2022

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Urbanization causes major changes in environmental systems, including those related with radiation balances and other meteorological conditions because of changes in surfaces and the physical environment. In addition, cities generate specific microclimates as a consequence of the diverse conditions within the urban fabric. Industrial parks represent vast urban areas, often neglected, contributing to the degradation of the urban environment, including poor thermal comfort as a result of soil sealing and low albedo surfaces. Nature-Based Solutions (NBS) can promote the mitigation of the anthropic effects of urbanization using nature as an inspiration. The present study, aimed at estimating the microclimate conditions in a fraction of the Argales industrial park in the city of Valladolid (Spain), with the use of the ENVI-Met software, assesses the current situation and a planned NBS scenario. Base scenario simulation results demonstrate different conditions across the simulations, with higher temperatures on sun-exposed surfaces with low albedo, and lower temperature spots, mostly associated with shadowed areas near existent buildings. After the simulation of the NBS scenario, the results show that, when compared with the base scenario, the projected air temperature changes reach reductions of up to 4.30 °C for the locations where changes are projected from impervious low albedo surfaces to shaded areas in the vicinity of trees and a water body.

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Section: Model Input Datamentioning

confidence: 99%

The Use of Envi-Met for the Assessment of Nature-Based Solutions’ Potential Benefits in Industrial Parks—A Case Study of Argales Industrial Park (Valladolid, Spain)

2022

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“…Modifikasi vegetasi dengan penambahan 50% vegetasi merupakan satusatunya skenario terbaik dalam menurunkan kenyamanan termal pada proses modifikasi vegetasi, temperatur udara rata -rata menurun sebesar 0.19 °C, kelembaban udara rata -rata meningkat sebanyak 0.17 %, kecepatan udara rata -rata menrun sebesar 0.01 m/s dan PMV rata -rata menurun sebanyak 0.02. Hal ini sejalan dengan temuan penelitian sebelumnya (Mohammad et al, 2021), semakin bertambah dan rapat jumlah vegetasi pada koridor, maka kondisi kenyamanan termal koridor juga semakin meningkat. Namun pada skenario BV2 ( 16m & Vegetasi 50% ) & CV2 ( 24m & Vegetasi 50% ) ditemukan perhitungan berbeda, temperatur udara dan indeks PMV mengalami penurunan.…”

Section: Gambar 2 Selisih Hasil Perubahan Temperatur Udara Eksisting ...unclassified

“…Berdasarkan hasil gambar 3. ditemukan bahwa hasil modifikasi skenario terbaik untuk meningkatkan kenyamanan termal pada waktu terpanas kawasan yaitu penggantian material perkerasan dengan nilai albedo 0.7, setelah itu vegetasi sebanyak 50%, adapun perubahan rasio H/W kurang optimal dalam menurunkan kenyamanan termal koridor. Temuan ini berbeda dengan beberapa penelitian sebelumnya, Menurut (Abdollahzadeh & Biloria, 2021;Estiningtyas, 2013), modifikasi rasio H/W lebih mempengaruhi peningkatan kenyamanan termal dibandingkan dengan modifikasi vegetasi, sedangkan (Mohammad et al, 2021) menyebutkan modifikasi vegetasi jauh lebih berpengaruhi kenyamanan termal jika dibandingkan dengan modifikasi material. Terdapat perbedaan hasil skenario ini disebabkan oleh perbedaan orientasi jalan pada penelitianpenelitian tersebut, menurut (Narimani et al, 2022), faktor yang paling mempengaruhi kondisi kenyamanan termal pada suatu koridor yaitu letak geografis dan orientasi jalan, perbedaan posisi matahari dan susuan orientasi jalan akan mempengaruhi pembahayangan serta besarnya heat gain yang dihasilkan oleh material bangunan yang digunakan pada sekitar koridor.…”

Section: Gambar 2 Selisih Hasil Perubahan Temperatur Udara Eksisting ...unclassified

Pengaruh Urban Geometri, Material, dan Vegetasi Terhadap Kenyamanan Termal Jalan Pangeran Diponegoro Yogyakarta Berbasis Simulasi

Mulya

Nedyomukti

2022

JUARA

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Yogyakarta city government plans to increase the number of tourists and make Pangeran Diponegoro street as a center for tourism and cultural development in the city of Yogyakarta. One way to realize these expectations is by increasing thermal comfort in the corridor space. However, the landuse on the south part of corridor has changed, so that it affect the changes in physical spatial condition which will have an impact on decreasing the quality of the thermal comfort on Pangeran Diponegoro street. The purpose of this research is to determine the physical factors in the corridor that have the most influence on thermal comfort and to find a development guidelines that can reduce the impact of Urban Heat Island at Pangeran Diponegoro Street Yogyakarta. The research method uses direct observation, then simulated modifies the physical condition of the corridor (building height, pavement material, and vegetation) using ENVI-met 3.1. The results showed that corridor existing had not yet reached a thermal comfort. The results of the geometry modification show that height modification have an impact on decreasing the thermal comfort of the corridor, while the albedo pavement material changes to 0.7 and the addition of vegetation as much as 75% succeeds in making the corridor more comfortable.

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“…In addition, the shape of tall buildings may be perceived as oppressive by city dwellers [60] and generates the socalled street canyon effect, which contributes to air pollution and to heat islands [61,62]. This could be at least partially counterbalanced by trees and green infrastructure [63,64], revealing opportunities for urban designs to promote healthy environments.…”

Section: Urban Environment and City Layoutmentioning

confidence: 99%

The mental health of children and young people living in big cities in a revolving postpandemic world

Marchionatti¹,

Caye

Kieling

2021

Current Opinion in Psychiatry

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Purpose of reviewThe world's population is increasingly urban, with most children and young people growing up and living in cities. Evidence suggests that urbanicity is linked to an increased risk for the development of mental health disorders. Rather than an accumulation of risk factors, urbanization is a complex process that profoundly structures living conditions. In this sense, it is timely to discuss what are the social and structural determinants of mental health of children and young people in such settings.Recent findingsThree domains of determinants of mental health were selected for discussion: economics and living conditions, crime and violence, and urban layouts. For each, we debated realities faced by urban children and young people, providing an overview of recent evidence on implications for mental disorders and well being. We also discuss the potential impacts of the covid-19 pandemic on each domain, as well as recommendations for future action.SummaryStructural factors are of major relevance for the mental health of children and young people living in cities. The agenda of mental health promotion and prevention must include whole-of-society interventions aimed at improving living conditions, including economic and social capital, violence prevention and urbanistic planning.

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Evaluating the role of the albedo of material and vegetation scenarios along the urban street canyon for improving pedestrian thermal comfort outdoors

Cited by 70 publications

References 105 publications

The Use of Envi-Met for the Assessment of Nature-Based Solutions’ Potential Benefits in Industrial Parks—A Case Study of Argales Industrial Park (Valladolid, Spain)

The Use of Envi-Met for the Assessment of Nature-Based Solutions’ Potential Benefits in Industrial Parks—A Case Study of Argales Industrial Park (Valladolid, Spain)

Pengaruh Urban Geometri, Material, dan Vegetasi Terhadap Kenyamanan Termal Jalan Pangeran Diponegoro Yogyakarta Berbasis Simulasi

The mental health of children and young people living in big cities in a revolving postpandemic world

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