The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutants
Canyon-type urban street is one of the urban forms in which critical and harmful situations for health and the urban environment are appearing today, such as urban heat island, areas of poor ventilation, and retention areas for pollutants emitted by road traffic, heating, and concentration of indust...
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| Format: | Article |
| Language: | English |
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Mehmet Topcu
2025-04-01
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| Series: | Journal of Design for Resilience in Architecture and Planning |
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| Online Access: | https://drarch.org/index.php/drarch/article/view/275 |
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| author | Loubna Khellaf Meriem Naimi Ait-Aoudia Farid Rahal |
| author_facet | Loubna Khellaf Meriem Naimi Ait-Aoudia Farid Rahal |
| author_sort | Loubna Khellaf |
| collection | DOAJ |
| description | Canyon-type urban street is one of the urban forms in which critical and harmful situations for health and the urban environment are appearing today, such as urban heat island, areas of poor ventilation, and retention areas for pollutants emitted by road traffic, heating, and concentration of industrial activities. The higher pollution levels are due to inappropriate relationships between morphological and microclimatic parameters specific to urban street canyons. Previous studies have mentioned the most common ones, namely the aspect ratio (H/W), the orientation of the street to the prevailing winds, and the vegetation. In the city of Algiers, the urban street canyon is very noticeable in two dominant urban fabrics, the medieval organic fabric and the colonial fabric dating back to the French occupation. This paper aims to explain the effect of different factors specific to urban canyons in Algiers on the concentration trend of air pollutants. By adopting the CODASC database containing data on normalized average pollutant concentrations (C+) related to different canyon street models according to aspect ratios H/W values, wind flow direction (α), tree stand density (ρs), and tree crown porosity (PVol). The results showed that LARBI BEN M'HIDI Street is more polluted than MOHAMED AZOUZI Street due to the effect of the maximum values of the aspect ratio and the density of trees on the wind behavior. The study results could provide a strategic guide for pollution mitigation to be used by urban planners in the design and implementation phases of sustainable urban development projects in Algiers. |
| format | Article |
| id | doaj-art-eb142ca2da614fcd93d663e9e5b8344e |
| institution | Kabale University |
| issn | 2757-6329 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Mehmet Topcu |
| record_format | Article |
| series | Journal of Design for Resilience in Architecture and Planning |
| spelling | doaj-art-eb142ca2da614fcd93d663e9e5b8344e2025-08-20T03:53:39ZengMehmet TopcuJournal of Design for Resilience in Architecture and Planning2757-63292025-04-016110212310.47818/DRArch.2025.v6i1159278The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutantsLoubna Khellaf0https://orcid.org/0009-0000-9547-3852Meriem Naimi Ait-Aoudia1https://orcid.org/0000-0002-4339-7031Farid Rahal2https://orcid.org/0000-0001-7495-8324University of BlidaUniversity of BlidaUniversity of Science and Technology of Oran-Mohamed BoudiafCanyon-type urban street is one of the urban forms in which critical and harmful situations for health and the urban environment are appearing today, such as urban heat island, areas of poor ventilation, and retention areas for pollutants emitted by road traffic, heating, and concentration of industrial activities. The higher pollution levels are due to inappropriate relationships between morphological and microclimatic parameters specific to urban street canyons. Previous studies have mentioned the most common ones, namely the aspect ratio (H/W), the orientation of the street to the prevailing winds, and the vegetation. In the city of Algiers, the urban street canyon is very noticeable in two dominant urban fabrics, the medieval organic fabric and the colonial fabric dating back to the French occupation. This paper aims to explain the effect of different factors specific to urban canyons in Algiers on the concentration trend of air pollutants. By adopting the CODASC database containing data on normalized average pollutant concentrations (C+) related to different canyon street models according to aspect ratios H/W values, wind flow direction (α), tree stand density (ρs), and tree crown porosity (PVol). The results showed that LARBI BEN M'HIDI Street is more polluted than MOHAMED AZOUZI Street due to the effect of the maximum values of the aspect ratio and the density of trees on the wind behavior. The study results could provide a strategic guide for pollution mitigation to be used by urban planners in the design and implementation phases of sustainable urban development projects in Algiers.https://drarch.org/index.php/drarch/article/view/275air pollutant concentrationscanyon streetscity of algierscodasc databasemorpho-climatic parameters |
| spellingShingle | Loubna Khellaf Meriem Naimi Ait-Aoudia Farid Rahal The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutants Journal of Design for Resilience in Architecture and Planning air pollutant concentrations canyon streets city of algiers codasc database morpho-climatic parameters |
| title | The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutants |
| title_full | The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutants |
| title_fullStr | The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutants |
| title_full_unstemmed | The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutants |
| title_short | The CODASC database for analyzing the impact of morpho-climatic characteristics of canyon streets on the concentration of air pollutants |
| title_sort | codasc database for analyzing the impact of morpho climatic characteristics of canyon streets on the concentration of air pollutants |
| topic | air pollutant concentrations canyon streets city of algiers codasc database morpho-climatic parameters |
| url | https://drarch.org/index.php/drarch/article/view/275 |
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