Investigating The Transient Thermal Aeraulic Conditions of The ‘Sabat’ Space in Traditional Mediterranean Cities The Case of Algiers’ Casbah

Sabah Ali-Smail (1), Moussadek Djenane (2), Noureddine Zemmouri (3)
(1) Ph.D. student, LACOMOFA laboratory, Architecture Department, Mohamed Khider University of Biskra, Algeria, Algeria,
(2) Research and Teaching Associate, LACOMOFA laboratory, Architecture Department. Mohamed Khider University of Biskra, Algeria, Algeria,
(3) Assistant Professor, LACOMOFA Laboratory, Architecture Department, Mohamed Khider University of Biskra, Algeria, Algeria


Cities are already experiencing the effect of climate change on their seasonal conditions, especially in the Mediterranean region where significant temperature increases are being observed. Walkability is an essential factor influenced by the global warming impacts and could significantly reshape the course of its magnitude.  The current study is a part of a large research investigating the influence of transient thermal aeraulic conditions of ‘Sabat’ space, a traditional urban in-between space, on pedestrians’ walking experience in Mediterranean cities. The aim is to investigate the potential of Sabat in supporting a positive walking experience. The novel ‘thermal walk’ method was carried out to capture the dynamic pedestrian sensations, simultaneously, with mobile micrometeorological within two preselected walking routes in Algiers’ Casbah. This paper reports the mobile meteorological measurement of the ‘Casbah walk’ with the aim of exploring the potential of Sabat in generating transient thermal aeraulic conditions. The measurement campaigns were carried out for five days in late December (2022). The campaigns involved a total of 16 assessment points of covered (Sabat) and non-covered stops using a set of portable weather station TESTO 480. Results revealed the potential of Sabat in generating transient thermal aeraulic conditions within the street, and the significance of air temperature and shade in channeling wind inside Sabats. Air temperature, mean radiant temperature and relative humidity significantly differ between Sabats and non-covered spaces. The wind speed recorded the largest variation. Important spatial transitions may result in abrupt thermal aeraulic transients. Although current results are limited to warm winter conditions, findings contribute to a better understanding of the use of shade and wind patterns in mitigating prolonged heat exposure and highlight the potential of Sabat space, a traditional sustainable device, in creating restorative conditions for walking activity.

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Cabanac, M. (1979). Sensory pleasure. The quarterly review of biology, 54(1), 1-29. DOI:

Chew, L. W., & Norford, L. K. (2019). Pedestrian-level wind speed enhancement with void decks in three-dimensional urban street canyons. Building and Environment, 155, 399-407. DOI:

Chun, C., & Tamura, A. (2005). Thermal comfort in urban transitional spaces. Building and Environment, 40(5), 633-639. DOI:

De Dear, R. (2011). Revisiting an old hypothesis of human thermal perception: alliesthesia. Building Research & Information, 39(2), 108-117. DOI:

Du, Y., Mak, C. M., Liu, J., Xia, Q., Niu, J., & Kwok, K. C. (2017). Effects of lift-up design on pedestrian level wind comfort in different building configurations under three wind directions. Building and Environment, 117, 84-99. DOI:

Dzyuban, Y., Hondula, D. M., Vanos, J. K., Middel, A., Coseo, P. J., Kuras, E. R., & Redman, C. L. (2022). Evidence of alliesthesia during a neighborhood thermal walk in a hot and dry city. Science of the Total Environment, 834, 155294. DOI:

Gamero-Salinas, J., Kishnani, N., Sanchez-Ostiz, A., Monge-Barrio, A., & Benitez, E. (2022). Porosity, openness, and exposure: Identification of underlying factors associated with semi-outdoor spaces’ thermal performance and clustering in tropical high-density Singapore. Energy and Buildings, 272, 112339. DOI:

Hakim, B. S. (2008). Mediterranean urban and building codes: origins, content, impact, and lessons. Urban Design International, 13(1), 21-40. DOI:

He, B. J., Zhao, D., Xiong, K., Qi, J., Ulpiani, G., Pignatta, G., ... & Jones, P. (2021). A framework for addressing urban heat challenges and associated adaptive behavior by the public and the issue of willingness to pay for heat resilient infrastructure in Chongqing, China. Sustainable cities and society, 75, 103361. DOI:

Kim, J. J., & Baik, J. J. (2001). Urban street-canyon flows with bottom heating. Atmospheric Environment, 35(20), 3395-3404. DOI:

Kottek, M., Grieser, J., Beck, C., Rudolf, B., & Rubel, F. (2006). World map of the Köppen-Geiger climate classification updated. Meteorologische Zeitschrift. Vol. 15, No. 3, 259-263. DOI:

Lau, K. K. L., Shi, Y., & Ng, E. Y. Y. (2017). Dynamic response of pedestrian thermal comfort under outdoor transient conditions. International Conference on Urban Comfort and Environmental Quality, 69-75. Genova University Press. DOI:

Lawson, T., & Penwarden, A D. (1975). The effect of wind on people in the vicinity of buildings. In 4th Int. Conf. on Wind Effects on Buildings and Structures, London, 1975. Cambridge University Press. 605-622.

Leichenko, R. (2011). Climate change and urban resilience. Current opinion in environmental sustainability, 3(3), 164-168. DOI:

Liu, S., Nazarian, N., Hart, M. A., Niu, J., Xie, Y., & de Dear, R. (2021). Dynamic thermal pleasure in outdoor environments-temporal alliesthesia. Science of The Total Environment, 771, 144910. DOI:

Nikolopoulou, M., & Steemers, K. (2003). Thermal comfort and psychological adaptation as a guide for designing urban spaces. Energy and buildings, 35(1), 95-101. DOI:

O’Malley, C., Piroozfarb, P. A., Farr, E. R., & Gates, J. (2014). An investigation into minimizing urban heat island (UHI) effects: A UK perspective. Energy Procedia, 62, 72-80. DOI:

Pereira, C. M., Heitor, T. V., & Heylighen, A. (2019). Exploring Multisensory Qualities of Loggia Spaces for Urban Resilience to Climate Change. Modular Journal, 2(2), 1-20.

Peng, Z., Bardhan, R., Ellard, C., & Steemers, K. (2022). Urban climate walk: A stop-and-go assessment of the dynamic thermal sensation and perception in two waterfront districts in Rome, Italy. Building and Environment, 221, 109267. DOI:

Pitts, A. (2013). Thermal comfort in transition spaces. Buildings, 3(1), 122-142. DOI:

Potvin, A. J. A. (1997). Movement in the architecture of the city: a study in environmental diversity (Doctoral dissertation, University of Cambridge).

Qi, Q., Meng, Q., Wang, J., & Ren, P. (2021). Developing an optimized method for the ‘stop-and-go’strategy in mobile measurements for characterizing outdoor thermal environments. Sustainable Cities and Society, 69, 102837. DOI:

Revi, A.; Satterthwaite, D.E.; Aragón-Durand, F.; CorfeeMorlot, J.; Kiunsi, R.B.R.; Pelling, M.; Roberts, D.C.; Solecki, W. Urban areas. In Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (p. 535–612). Cambridge University Press. DOI:

Schweiker, M. (2020). Rethinking resilient comfort—Definitions of resilience and comfort and their consequences for design, operation, and energy use. In Proceedings of the 11th Windsor Conference: resilient comfort. 34-46

Sinou, M., & Steemers, K. (2004). Urban semi-enclosed spaces as climate moderators. In Proceedings of PLEA 21st Conference on Passive and Low Energy Architecture.385-389.

Sinou, M., & Steemers, K. (2004b). Intermediate space and environmental diversity. Urban design international, 9, 61-71. DOI:

Stathopoulos, T., & Wu, H., & Bédard, C. (1992). Wind environment around buildings: a knowledge-based approach. Journal of Wind Engineering and Industrial Aerodynamics, 44(1-3), 2377-2388. DOI:

Tomasi, Marika; Nikolopoulou, Marialena; Giridharan, Renganathan; Romero, Juan Carlos; Löve, Monika; Ratti, Carlo. Walkability and Solar Radiation Exposure for Diverse Users: Climate-responsive Urban Design to enhance accessibility to outdoor spaces (2022). In Proceeding of the 36th PLEA conference 2022: Will cities survive? The future of sustainable buildings and urbanism in age of emergency. vol 2, 687-692

Tyler, S., & Moench, M. (2012). A framework for urban climate resilience. Climate and development, 4(4), 311-326. DOI:

Vasilikou, C., & Nikolopoulou, M. (2013). Thermal walks: identifying pedestrian thermal comfort variations in the urban continuum of historic city centers. In Proceeding of PLEA2013-29th Conference, Sustainable architecture for a renewable future, Munich, Germany. 10-12.

Xie, X., Liu, C. H., & Leung, D. Y. (2007). Impact of building facades and ground heating on wind flow and pollutant transport in street canyons. Atmospheric Environment, 41(39), 9030-9049. DOI:


Sabah Ali-Smail
[email protected] (Primary Contact)
Moussadek Djenane
Noureddine Zemmouri
Ali-smail, S., Djenane, M., & Zemmouri, N. (2023). Investigating The Transient Thermal Aeraulic Conditions of The ‘Sabat’ Space in Traditional Mediterranean Cities: The Case of Algiers’ Casbah. Environmental Science & Sustainable Development, 8(2), 53–61.

Article Details

Received 2023-10-14
Accepted 2023-11-21
Published 2023-12-31