Investigating the effects of urban planning components on the thermal comfort of the citizens of Tabriz city using EnviMat software

Document Type : Research Paper

Authors

1 PhD student, Faculty of Geography and Earth Sciences, University of Szeged, Hungary

2 Ph.D. in Urban Planning, Faculty of Architecture and Urban Planning, Tabriz University

3 Master's degree, Faculty of Art and Architecture, Tarbiat Modares Universit

4 PhD in Architecture, Faculty of Art and Architecture, Tabriz Azad University

Abstract

In today's era, due to the ever-increasing expansion of urbanization, attention to urban environments and spaces has gained special importance. After the lack of attention towards urban spaces in the past, we are witnessing the growing importance of such spaces in the context of urban life. On the other hand, the population's desire for urbanization has caused population growth, increased demand in various fields, created numerous pollutions, and subsequently caused climate changes and reduced thermal comfort in cities.In the seven contexts under study (historical, rural, traditional, new-foundation traditional, designed, marginal, and complex), many reasons, including physical wear and inefficient roads, make people's daily activities difficult. On the other hand, the occurrence of thermal islands, lack of vegetation and numerous climatic factors have greatly reduced the thermal comfort of users.Therefore, the current research has tried to use new techniques, including microclimate modeling and analysis, while examining the thermal comfort and the physical elements that shape the environment, to provide suggestions to reduce the mentioned problems and improve the thermal comfort level in the studied tissues of Tabriz city.Based on the output of the research, which is both in the form of numerical data and climate maps provided by Envi-met software, the role of physical factors and urban development in improving or reducing thermal comfort is noticeable. According to these findings, vegetation, height-to-width ratio (enclosure) and the direction of roads have a direct effect on the improvement of thermal conditions in each of the studied localities

Keywords

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References

Abdi, Z., Alizadeh, H., Mohammadi, S., & Sabouri, S. (2023). Analysis of urban form typology using urban heat island indicators: Case study of Ferdous neighborhood of Tabriz. Frontiers in Ecology and Evolution, 10, Article 1065538. https://doi.org/10.3389/fevo.2022.1065538
Abreu-Harbich, L. V., Labaki, L. C., & Matzarakis, A. (2014). Thermal bioclimate in idealized urban street canyons in Campinas, Brazil. Theoretical and Applied Climatology, 115, 333–340. https://doi.org/10.1007/s00704-013-0886-0
Ahmad, K., Khare, M., & Chaudhry, K. K. (2005). Wind tunnel simulation studies on dispersion at urban street canyons and intersections—a review. Journal of Wind Engineering and Industrial Aerodynamics, 93(9), 697–717. https://doi.org/10.1016/j.jweia.2005.04.002
Ali-Toudert, F., & Mayer, H. (2006). Numerical study on the effects of aspect ratio and orientation of an urban street canyon on outdoor thermal comfort in hot and dry climate. Building and Environment, 41(2), 94–108. https://doi.org/10.1016/j.buildenv.2005.01.013
Ali-Toudert, F., & Mayer, H. (2007). Effects of asymmetry, galleries, overhanging facades and vegetation on thermal comfort in urban street canyons. Solar Energy, 81(6), 742–754. https://doi.org/10.1016/j.solener.2006.10.007
American Society of Heating, Refrigerating and Air-Conditioning Engineers. (2017). ANSI/ASHRAE standard 55-2017: Thermal environmental conditions for human occupancy. https://www.ashrae.org/technical-resources/bookstore/standard-55-thermal-environmental-conditions-for-human-occupancy
Bosselmann, P., Arens, E., Dunker, K., & Wright, R. (1995). Urban form and climate: Case study, Toronto. Journal of the American Planning Association, 61(2), 226–239. https://doi.org/10.1080/01944369508975635
Bourbia, F., & Boucheriba, F. (2010). Impact of street design on urban microclimate for semi arid climate (Constantine). Renewable Energy, 35(2), 343–347. https://doi.org/10.1016/j.renene.2009.03.019
Bruse, M., & Fleer, H. (1998). Simulating surface-plant-air interactions inside urban environments with a three dimensional numerical model. Environmental Modelling & Software, 13, 373–384. https://doi.org/10.1016/S1364-8152(98)00042-5
Byrne, L. B., Bruns, M. A., & Kim, K. C. (2008). Ecosystem properties of urban land covers at the aboveground–belowground interface. Ecosystems, 11, 1065–1077. https://doi.org/10.1007/s10021-008-9179-3
Chatzinikolaou, E., Chalkias, C., & Dimopoulou, E. (2018). Urban microclimate improvement using ENVI-met climate model. International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, 42(4), 69–76. https://doi.org/10.5194/isprs-archives-XLII-4-69-2018
Eliasson, I. (2000). The use of climate knowledge in urban planning. Landscape and Urban Planning, 48(1-2), 31–44. https://doi.org/10.1016/S0169-2046(00)00034-7
Emmanuel, R. (2005). An urban approach to climate-sensitive design: Strategies for the tropics. Taylor & Francis. https://doi.org/10.4324/9780203021386
Gill, S. E., Handley, J. F., Ennos, A. R., & Pauleit, S. (2007). Adapting cities for climate change: The role of the green infrastructure. Built Environment, 33(1), 115–133. https://doi.org/10.2148/benv.33.1.115
Givoni, B. (1991). Urban design in different climates. In Atmospheric Environment. Part B. Urban Atmosphere (Vol. 25). https://doi.org/10.1016/0957-1272(91)90049-k
Grimmond, C. S. B., & Oke, T. R. (1991). An evapotranspiration-interception model for urban areas. Water Resources Research, 27(7), 1739–1755. https://doi.org/10.1029/91WR00557
Hashemi, F., Poerschke, U., Iulo, L. D., & Chi, G. (2023). Urban microclimate, outdoor thermal comfort, and socio-economic mapping: A case study of Philadelphia, PA. Buildings, 13(4). https://doi.org/10.3390/buildings13041040
Höppe, P. (1999). The physiological equivalent temperature – a universal index for the biometeorological assessment of the thermal environment. International Journal of Biometeorology, 43(2), 71–75. https://doi.org/10.1007/s004840050118
Johansson, E. (2006). Influence of urban geometry on outdoor thermal comfort in a hot dry climate: A study in Fez, Morocco. Building and Environment, 41(10), 1326–1338. https://doi.org/10.1016/j.buildenv.2005.05.022
Kakon, A. N., & Mishima, N. (2012). The effects of building form on microclimate and outdoor thermal comfort in a tropical city. Journal of Civil Engineering and Architecture, 6(11), 1492. https://doi.org/10.1007/s12273-009-91-c
Lashkari, H., & Pour Khadem, Z. (2017). Optimizing the orientation of open spaces in Ardabil based on climatic conditions. Journal of Geographical Research, 79, 19-36. https://doi.org/10.5531-3840406/sd
Lin, T., Tsai, K., Hwang, R., & Matzarakis, A. (2012). Quantification of the effect of thermal indices and sky view factor on park attendance. Landscape and Urban Planning, 107(2), 137–146. https://doi.org/10.1016/j.landurbplan.2012.05.011
Mohammadzadeh, R., & Sarafrouzeh, F. (2010). Investigating the degree of adaptation of the communication network to climatic factors: The case of Urmia. Journal of Geography and Urban Planning, 23(1), 15. https://sid.ir/paper/203672/fa
Murakami, S., Ooka, R., Mochida, A., Yoshida, S., & Kim, S. (1999). CFD analysis of wind climate from human scale to urban scale. Journal of Wind Engineering and Industrial Aerodynamics, 81(1–3), 57–81. https://doi.org/10.1016/S0167-6105(99)00009-4
Olgyay, V. (1963). Design with climate: Bioclimatic approach to architectural regionalism. Princeton University Press. https://doi.org/10.1515/9781400873685
Oke, T. R. (1982). The energetic basis of the urban heat island. Quarterly Journal of the Royal Meteorological Society, 108(455), 1–24. https://doi.org/10.1002/qj.49710845502
Oke, T. R. (1988). Street design and urban canopy layer climate. Energy and Buildings, 11(1–3), 103–113. https://doi.org/10.1016/0378-7788(88)90026-6
Park, K., Jun, C., Baik, J., & Kim, H.-J. (2024). Urban canyon design with aspect ratio and street tree placement for enhanced thermal comfort: A comprehensive thermal comfort assessment accounting for gender and age in Seoul, Republic of Korea. Buildings, 14(8), Article 2517. https://doi.org/10.3390/buildings14082517
Pearlmutter, D., Berliner, P., & Shaviv, E. (2007). Integrated modeling of pedestrian energy exchange and thermal comfort in urban street canyons. Building and Environment, 42(6), 2396–2409. https://doi.org/10.1016/j.buildenv.2006.06.006
Peng, M., & Huang, H. (2022). The synergistic effect of urban canyon geometries and greenery on outdoor thermal comfort in humid subtropical climates. Frontiers in Environmental Science, 10, Article 851810. https://doi.org/10.3389/fenvs.2022.851810
Rahimi, A., & Nobar, Z. (2023). The impact of planting scenarios on agricultural productivity and thermal comfort in urban agriculture land (case study: Tabriz, Iran). Frontiers in Ecology and Evolution, 11, Article 1048092. https://doi.org/10.3389/fevo.2023.1048092
Rupp, R. F., Vásquez, N. G., & Lamberts, R. (2015). A review of human thermal comfort in the built environment. Energy and Buildings, 105, 178–205. https://doi.org/10.1016/j.enbuild.2015.07.047
Sabouri, S., & Alinasab, N. (2021). Investigating outdoor thermal comfort in various street patterns (Case study: A neighborhood in the historical context of Tabriz). International Journal of Architectural Engineering & Urban Planning, 31(4). https://doi.org/10.22068/ijaup.31.4.533
Santamouris, M. (2015). Analyzing the thermal performance of the urban environment: The role of the new generation of advanced cool materials. Energy and Buildings, 98, 3–10. https://doi.org/10.1016/j.enbuild.2014.11.070
Shashua-Bar, L., & Hoffman, M. E. (2003). Geometry and orientation aspects in passive cooling of canyon streets with trees. Energy and Buildings, 35(1), 61–68. https://doi.org/10.1016/S0378-7788(02)00080-4
Sun, C., Lian, W., Liu, L., Dong, Q., & Han, Y. (2022). The impact of street geometry on outdoor thermal comfort within three different urban forms in severe cold region of China. Building and Environment, 222, Article 109342. https://doi.org/10.1016/j.buildenv.2022.109342
Teshnehdel, S., Akbari, H., Di Giuseppe, E., & Brown, R. D. (2020). Effect of tree cover and tree species on microclimate and pedestrian comfort in a residential district in Iran. Building and Environment, 178, Article 106899. https://doi.org/10.1016/j.buildenv.2020.106899
Teshnehdel, S., Gatto, E., Li, D., & Brown, R. D. (2022). Improving outdoor thermal comfort in a steppe climate: Effect of water and trees in an urban park. Land, 11(3), Article 431. https://doi.org/10.3390/land11030431
Zakhour, S. (2015). The impact of urban geometry on outdoor thermal comfort conditions in hot-arid region. Journal of Civil Engineering and Architecture Research, 2(8), 862–875. https://doi.org/10.1814/links/5ad6f2b8458515c60f56aa6c
Journal of Society and the Environment
Volume 2, Issue 7
February 2026
Pages 87-130

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