Nourhan Hamdy

Dr. Nourhan Hamdy

Planning, Design, Technology of Architecture, Sapienza University of Rome, Rome, Lazio, Italy
orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 March 2023 in Sustainability
Verified
Journal Article
Open access
PDF file
CBCarmelina Bevilacqua
Carmelina Bevilacqua
PSPoya Sohrabi
Poya Sohrabi
Nourhan HamdyNourhan Hamdy
Nourhan Hamdy
FMFederica Mangiulli
Federica Mangiulli
Geographic proximity might not be the only factor influencing the connections between neighborhoods within the same city. Most likely, the community’s needs and behaviors play a role in facilitating or hindering any connections between these urban areas. Accordingly, relationships between communities may differ or be similar based on their respective characteristics. This paper aims to demonstrate that communities are close based on the needs they share, regardless of their ethnicity or geographic location. In this study, a time series analysis of neighborhoods’ needs is explored to gain a deeper understanding of the communities’ network. The study takes into account the co-occurrence of complaints/reports from residents regarding the same issue. The dataset was retrieved from the Boston Area Research Initiative (BARI) and the 311 system that describe the features of neighborhoods regarding non-emergency issues. Subsequently, the connection between neighborhoods in the City of Boston was analyzed using a mixture of PCA, K-means, association rule mining, and a network creation tool. Moreover, clustering coefficients and degrees of centrality were used as significant factors in identifying the members of groups and marking crucial nodes in the network. A series of graphs were generated to show how the neighborhoods are linked based on their socioeconomic concerns. The results prove that even geographically disconnected neighborhoods within Boston have similar social needs, despite their distance from one another. Furthermore, it revealed that some neighborhoods can act as linking bridges for other neighborhoods, while others may be isolated within the network graph. This study has increased awareness of urban aspects. The authorities may consider other dimensions than the traditional ones regarding neighborhood development and addressing problems. Finally, it helps to identify common characteristics between neighborhoods, which facilitates the policy making process.

12 November 2025 in Sustainability
Verified
Journal Article
Open access
PDF file
CBCarmelina Bevilacqua
Carmelina Bevilacqua
Nourhan HamdyNourhan Hamdy
Nourhan Hamdy
PSPoya Sohrabi
Poya Sohrabi
Urban CO2 mitigation strategies typically aim at particular zones or sectors but do not account for spatial interdependencies among different components within the city. Understanding how land uses emit within and across districts can reveal systemic leverage points for climate-resilient urban planning. This study applies a bipartite spatial network approach using high-resolution Urban Atlas land-use data and a hierarchical spatial framework for emissions and sequestration estimation. The approach links urban land uses to their emissions profiles, offering a structural view of how different areas interconnect within urban carbon dynamics, moving beyond fragmented emission accounting. Using the Reggio Calabria Functional Urban Area in Italy as a case study, the analysis identifies influential areas and emission-intensive land uses. Subsequently, using centrality metrics highlights the spatial units with strong connections to emission-dense land uses, marking them as points of intervention. Results show that although 53% of districts act as net carbon sinks, their sequestration capacity is outweighed by the intensity of a smaller group of emitter districts. Among these, five central districts (IDs 94, 82, 107, 108, and 72) emit over 500 million kg CO2 per year, making them leverage points for systemic mitigation. The integration of bipartite spatial network and multiscale territorial analysis provides a replicable, data-driven framework for urban CO2 mitigation. Ultimately, the study demonstrates that mapping emissions through spatial interdependencies enables planners to target interventions where localized action yields the greatest network-wide climate impact.

25 January 2022 in Sustainability
Verified
Journal Article
Open access
PDF file
CBCarmelina Bevilacqua
Carmelina Bevilacqua
PPPasquale Pizzimenti
Pasquale Pizzimenti
Nourhan HamdyNourhan Hamdy
Nourhan Hamdy
FMFederica Mangiulli
Federica Mangiulli
Community-based urban development is an inclusive approach for local service provision and management centered on the proactive partnerships between urban communities and local governments. Rooted in the deinstitutionalization of public services, the European Union and national policy effort is pushing towards the organization of community-based alternatives in response to the evolving needs of local communities. As the pandemic has shown, service accessibility has proven to be a key concern element that needs to be addressed to increase communities’ and cities’ resilience. In this direction, the paper aims to propose data-driven alternative approaches to assess urban systems’ accessibility and connectivity as an element of leveraging the resilience-oriented planning process and facilitating community-based development. The methodological approach focuses on the case of the Calabria region, where community-based alternatives for the provision of public services found difficulties to be operationalized through an integrated planning approach. The case study is explored by experimenting on the spatial connections of two purposefully selected clusters to assess the accessibility and connectivity of urban systems within the region through network analysis visualization tools: health and social-related services and transportation and logistics. The analytical approach outlines the accessibility level of urban systems in the region examined, proving its relevance in detecting social, economic, and environmental dynamics. This approach shows how using non-traditional data-driven perspectives can detect development dynamics—which affect local community’s needs—and their limitations in the organization of community-based development alternatives.

4 March 2022 in Sustainability
Verified
Journal Article
Open access
PDF file
CBCarmelina Bevilacqua
Carmelina Bevilacqua
PSPoya Sohrabi
Poya Sohrabi
Nourhan HamdyNourhan Hamdy
Nourhan Hamdy
The location of the local network of firms impacts, positively or negatively, their economic performance. The interactions between different sectors in a territory are still not easily observable. We test the complexity of the economic structure at a local level, given the availability of data at a very granular scale. This could greatly assist in observing sectors or/and locations that play a dominant role in the regional economy. Thus, in order to interpret the economic structure of a territory, we used cluster-based analysis. The analysis helps in evaluating the interconnections among sectors that constitute a cluster. A novel method of describing the territorial economic structure is presented by applying Social Network Analysis (SNA) within cluster-based analysis to characterize the importance of both location and economic interconnections. In this study, we focus on the industrial agglomerations in Calabria, Italy, to underpin the potential of the region’s industries by using social networking analysis metrics. This research put forward new interpretations of SNA metrics that describe regional economic compositions. Our findings reveal that territorial social networks are a potential instrument for understanding interactions in regional systems and economic clusters and might help in highlighting local industrial potentials. We believe that this study’s results could be considered as the initial steps for a pioneer data-driven place-based structural analysis model.

19 November 2025 in Land
Verified
Journal Article
Open access
PDF file
CBCarmelina Bevilacqua
Carmelina Bevilacqua
PSPoya Sohrabi
Poya Sohrabi
Nourhan HamdyNourhan Hamdy
Nourhan Hamdy
Integrating ecosystem services into urban planning requires analytical tools that connect spatial land-use data with environmental performance. This paper applies a multi-scale, data-driven approach to assess urban carbon dynamics using spatial units that reflect both ecological functions and planning relevance. The study examines the Reggio Calabria Functional Urban Area (FUA) in Southern Italy, using Copernicus Urban Atlas land-use data to characterize spatial patterns and estimate CO2 emissions and sequestration using parameters derived from established literature and institutional sources. A Spatial Durbin Model (SDM) identifies land uses with direct and spillover effects, revealing how spatial organization shapes urban carbon outcomes. Results reveal a net emission imbalance of approximately 1.85 billion kg CO2 per year, confirming the region’s role as a net emitter. Transport corridors and discontinuous low-density urban areas show the strongest positive SDM coefficients (+3.48 and +0.78 kg CO2 m−2 yr−1, respectively). Forests and agricultural lands show negative effects, indicating potential sequestration functions, though not statistically significant. This suggests that natural and semi-natural land uses contribute little to measurable CO2 reduction within the FUA. Emissions and sinks display a polarized spatial pattern, with coastal urban zones acting as hotspots and inland areas serving as potential sinks. These findings underscore the need to strengthen ecological connectivity and integrate green infrastructure within dense urban areas to enhance mitigation capacity. The proposed framework shows how spatially explicit, hierarchical analysis can bridge ecosystem services and urban planning, offering a replicable basis for data-informed, climate-responsive strategies.

6 October 2025
Verified
Conference Paper
Open access
CBCarmelina Bevilacqua
Carmelina Bevilacqua
Giuliana VitielloGiuliana Vitiello
Giuliana Vitiello
MSMonica Sebillo
Monica Sebillo
VPVincenzo Provenzano
Vincenzo Provenzano
PSPoya Sohrabi
Poya Sohrabi
PPPasquale Pizzimenti
Pasquale Pizzimenti