This study evaluates the spatial exposure of road infrastructure and road users to nomadic herder–farmer conflicts (HFCs) in Nigeria, focusing on four critical nomadic pastoral corridors (NPCs): Kaduna–Plateau (North West–North Central, NW–NC), Taraba–Benue (North East–North Central, NE–NC), Nasarawa–Benue (North Central–North Central, NC–NC), and Benue–Enugu (North Central–South East, NC–SE). Using geospatial data, the study develops a Road Exposure Index (REI) by integrating road density, population density, and conflict density across local government areas within these NPCs. Kernel density estimation (KDE) was applied in ArcGIS to visualize the spatial distribution of REI values and identify areas of heightened exposure during HFC-affected years. The results reveal substantial variations in REI across the corridors, with tertiary roads in the Benue–Enugu (NC–SE) and Nasarawa–Benue (NC–NC) corridors showing particularly high levels of exposure. These areas are important because they include major food-producing zones, suggesting that HFC-related road exposure may have implications for food accessibility and rural–urban market connectivity. The findings highlight the need for targeted intelligent transport system (ITS) infrastructure and security interventions to improve road monitoring, enhance transport resilience, and reduce mobility risks in conflict-affected corridors in Nigeria.
Flooding is a recurrent problem in rapidly developing urban districts such as Lokogoma, Abuja, where inadequate drainage, poor land-use planning, and weak infrastructure maintenance increase flood vulnerability. This study assessed the causes, impacts, and effectiveness of existing flood mitigation measures in Lokogoma District, Abuja, Nigeria. A mixed-methods approach was adopted, involving field observation, questionnaire surveys, stakeholder interviews, secondary data review, and geographic information system (GIS)-assisted mapping. A total of 381 questionnaires were administered to residents in flood-prone residential areas, and the data were analyzed using descriptive statistics, mainly frequencies and percentages. The findings show that 79% of respondents had been affected by flooding, while 53.3% reported that flooding occurs frequently. Poor drainage conditions were identified as the leading cause of flooding, accounting for 27.6% of responses, followed by building on waterways and improper planning, each accounting for 22.0%. The major impacts of flooding included disruption of daily activities, economic loss, loss of personal belongings, health issues, property damage, and displacement from homes. Existing mitigation measures included drainage systems, sandbags/barriers, building elevation, flood walls, community education, early warning systems, vegetative barriers, land-use planning, and flood insurance. However, respondents expressed mixed views about their effectiveness, with 44.9% rating the measures as effective or very effective and 39.4% rating them as ineffective or very ineffective. The study concludes that flooding in Lokogoma is driven by inadequate drainage capacity, poor maintenance, improper waste disposal, weak development control, and limited community participation. It recommends upgrading secondary and tertiary drainage systems, improving solid waste management, enforcing land-use and building regulations, conducting regular drainage maintenance, reviewing flood risk assessments, and strengthening public awareness and community participation. These measures can enhance flood resilience and support more sustainable urban development in Lokogoma District.
Urbanization in rapidly expanding municipalities in developing countries presents significant spatial and governance challenges. This study examines urban sprawl and related municipal planning issues in the Kaduwela Municipal Council (KMC) area of Sri Lanka, using land-use and land-cover (LULC) data for 2002, 2012, and 2024 and demographic data up to 2023. By integrating Geographic Information System (GIS)-based land-use analysis with regression modeling, the study investigates land-use transformation, population change, and selected factors associated with urban expansion. Landsat satellite imagery from 2002, 2012, and 2024 was used to classify major land-use and land-cover categories, including built-up areas, vegetation, agricultural land, water bodies, and bare land. The classified maps were used to construct an Urban Sprawl Index (USI) to assess the extent and pattern of urban sprawl over the study period. Regression analysis was then applied to examine the relationship between the USI and selected demographic, infrastructural, and socioeconomic variables, including population growth, population density, road density, vehicle density, employment rate, and sectoral population distribution. The results indicate substantial land-use transformation in KMC, with an expansion of built-up areas and a decline in agricultural land, vegetation, and water bodies. The regression results show that population growth rate was the only statistically significant predictor of the USI, while other variables showed weak or non-significant associations. These findings suggest that urban sprawl in KMC is shaped by both measurable demographic factors and other contextual factors, such as land-use regulation, environmental constraints, informal development, and municipal governance capacity. The study highlights the need for integrated land-use planning, improved GIS-based monitoring, stronger zoning enforcement, infrastructure coordination, and environmental protection to support more sustainable urban management in Kaduwela and similar peri-urban municipalities in Sri Lanka.
This paper examined the impact of political economy on urban governance and planning in India through the lens of historical institutionalism. It analysed the economic reforms of 1991 and their implications on the evolving role of government across different levels, particularly in reshaping institutional responsibilities within the domain of urban development. The case studies of Jawaharlal Nehru National Urban Renewal Mission (JNNURM) and the National Urban Transport Policy (NUTP) provided insights into how governance reforms and policy frameworks evolved within an existing institutional structure. A comparative analysis of these case studies suggested that the adoption of urban governance reforms in India has been gradual and path dependent, rather than transformative. The paper concluded by highlighting key institutional shortcomings, including constrained decentralisation and limited fiscal capacity at the city level, and identified areas where further improvement is necessary.

Open Access
Spatial Evolution and Collaborative Innovation of China’s Lithium-Ion Battery Research and Development Enterprises: Evidence from a National Innovation Networkhuijie yang
, junyu cheng
, jiahan hu
, liping qiu
, shuang zhao
, xiaoping wang
, shaobo yang
, hao hu
, shaobin wei
, haiyan zhou
, feng hu 
|
Available online: 09-08-2025
The spatial configuration and collaborative networks of research and development (R&D) enterprises are continuously reshaping the innovation landscape of strategic industries. Clarifying this evolution is crucial for advancing China’s lithium-ion battery (LIB) sector. Leveraging a unique dataset of corporate LIB patents, this study examines the co-evolution of spatial agglomeration and inter-city collaborative networks within China’s LIB industry. Integrating spatial statistics, social network analysis, and geographic detectors across four sub-periods, we systematically track this reshaping process and identify its driving forces. Our findings reveal a dual trajectory of restructuring. Spatially, LIB R&D enterprises exhibit persistent east-west disparities, with innovation hotspots concentrated in coastal urban clusters, the Yangtze River Delta, Pearl River Delta, and Beijing-Tianjin-Hebei region. However, standard deviation ellipse analysis indicates a significant northward shift in the distribution center toward Ji’an, Jiangxi Province, suggesting gradual restructuring toward inland regions. In the network dimension, inter-city collaboration has expanded from 2 to 157 cities, yet overall connectivity remains low and fragmented. Notably, high-level connections concentrate among core cities unconstrained by geographical distance, indicating network structure is reshaped by node hierarchy rather than spatial proximity. Further analysis reveals that regional economic openness, industrial agglomeration, technological innovation capabilities, and policy support collectively shape enterprise distribution and network positions. By integrating spatial and network perspectives, these findings advance understanding of how strategic industries reshape regional innovation landscapes and provide evidence-based implications for fostering a more balanced and connected technological innovation landscape in China.
This paper advanced a new methodological framework for understanding and classifying the urban–rural continuum in post-2000 South Africa. The abolition of administrative distinctions through the Municipal Systems Act in 2000 rendered traditional definitions of “urban” and “rural” obsolete, thus creating a conceptual gap in spatial classification. Drawing on the international frameworks, the study proposed a functionally grounded approach that transcends the urban–rural binary. Using a positivist design and quantitative spatial modelling, the research introduced the Dominant Impact Factor (DIF), a composite indicator integrating population size, participation of labour force, and economic production, to assess relative municipal dominance. Municipalities were subsequently categorized through a quartile-based classification into urban, mixed, and rural types, and further refined using geo-referencing and a spatial grid for fine-scale spatial differentiation. Findings revealed pronounced demographic and economic concentration in a small number of highly urbanized municipalities, contrasted with extensive and sparsely populated rural territories. The framework reconceptualized settlement systems as dynamic, relational, and functionally interlinked rather than dichotomous. The study aligns the spatial classification practice in South Africa with globally methodological standards, to offer a robust, transparent, and scalable tool for evidence-based planning, governance, and formulation of policy.
The accuracy of land use classification is significantly enhanced by the integration of high-resolution Geographic Information System (GIS) data and remote sensing technologies. This study examines the urban sprawl in Baghdad, Iraq, a city undergoing rapid urbanization due to population growth and infrastructural development, resulting in extensive land use changes. High-resolution satellite imagery, including WorldView-2 (0.5 m), QuickBird (0.6 m), and Landsat 8 (30 m), is utilized to classify land into categories such as urban areas, agricultural land, water bodies, vegetation, and barren land. The application of machine learning algorithms, specifically Random Forest (RF) and Support Vector Machine (SVM), facilitates the achievement of higher classification accuracy. The integration of GIS with remote sensing data improves the precision of urban growth pattern analysis and mapping. Temporal and spatial integration proves essential in monitoring urban sprawl, offering valuable insights into how urban areas encroach upon agricultural land. The results indicate that high-resolution satellite imagery significantly enhances classification accuracy, particularly in identifying small-scale urban features, thus surpassing the performance of traditional satellite data. The study underscores the critical role of high-resolution remote sensing in urban planning and land use management, providing a robust framework to guide policymakers and urban planners in making informed decisions regarding resource allocation, infrastructure development, and sustainable urban growth. Future research directions suggest the potential application of AI-driven models for real-time detection and prediction of urban sprawl.
The Nusantara Capital City (IKN) in Indonesia has undergone rapid urbanization which threatens sustainable forest management and the well-being of the indigenous community, leading to conflicts over land rights and resources. This study explored trust, norms, social networks, proactive action, and care between indigenous and migrant forest communities in IKN to support collaborative governance. It contributed to forest governance research by applying social capital theory to a protected urban area under state-led development. The research explained differences in household participation and offered a framework connecting bonding and bridging ties to co-management. Surveys based on the Social Capital Assessment Tool (SCAT) and the Social Capital Integrated Questionnaire (SC-IQ) were conducted with 90 households (45 indigenous and 45 migrant) across six villages in Penajam Paser Utara and Kutai Kartanegara districts from March to September 2024. Spearman’s rank tests was employed to analyze relationships between traits and social capital. The analysis results indicated that both communities possessed strong social capital, particularly trust in leaders (scores 3.49–3.56) and norms (scores 3.53), yet demonstrated moderate trust in government and environmental commitment. Migrants generally have higher education, income, land ownership, and bridging social capital, whereas indigenous groups maintain strong bonding capital rooted in tradition and legitimacy of local leaders. Traits significantly correlated with social capital (indigenous: r = 0.756, p < 0.001; migrants: r = 0.823, p < 0.001). Overall speaking, effective forest city development depended on government policies, local leadership, environmental awareness, transparency, and acknowledgment of customary governance, as these elements could foster community-based forest management and equitable urban development in tropical forest areas.
Rapid urbanization in Bangladesh has exponentially exacerbated environmental stressors, most notably in Dhaka and Rajshahi, where climate-related concerns are becoming more prevalent. This study adopted geographic information system (GIS) and remote sensing techniques to delineate and assess climate risk zones in Dhaka City Corporation (DCC) and Rajshahi City Corporation (RCC) in 2020 and 2024. The evaluation involved the incorporation of land use/land cover (LULC), land surface temperature (LST), and air pollution indicators. Sentinel-2A multispectral imager (MSI) was used to calculate LULC, Landsat-8 optical land imager (OLI) for LST, and Sentinel-5P for atmospheric pollutants, such as NO2, SO2, CO, and PM2.5. The analysis revealed that the built-up land in Dhaka was expanded by 4.38% whereas in Rajshahi, it was 8.91%. Rajshahi recorded a maximum LST of 46.7°C in 2024, when compared to 37.6°C in Dhaka. The level of air pollution was consistently high in Dhaka, with an average concentration of NO2 reaching 36.4 µmol/m2, almost quadrupled the 9.81 µmol/m2 in Rajshahi. Weighted overlay analysis demonstrated that 5.38% and 1.63% of the areas in Dhaka and Rajshahi, respectively, were categorized as very high-risk zones in 2024. The very low-risk zones accounted for less than 1.5% in both cities. These findings suggested significant regional differences in urban climate risk as Dhaka was experiencing more severe circumstances, due to dense urbanization and rising pollution levels. The study unraveled the potential of GIS and remote sensing-based multi-parameter integration for urban climate risk zoning, as well as the establishment of city-specific adaptation and mitigation measures in Bangladesh.
Cultural memory plays a crucial role in shaping the identity and continuity of cities so as to reflect their historical narratives, traditions, and collective experiences. Cities serve as repositories of memory, where architecture, public spaces, monuments, and urban landscapes embody the past while influencing contemporary urban life. However, rapid urbanization, globalization, and socio-political transformations often challenge the preservation of cultural memory, thus leading to the loss or redefinition of historical narratives. Sustainable urban development and adaptive reuse of heritage sites offer pathways to maintaining cultural memory while accommodating modern needs. This paper explored the importance of cultural memory in urban contexts with a particular focus on the relationship between conservation and user experience. The exploration primarily involved extracting fundamental principles and guidelines from leading international bodies such as the United Nations Educational, Scientific and Cultural Organization (UNESCO) and the United Nations Human Settlements Programme (UN-Habitat), whose conferences and charters emphasized the importance of cultural continuity, community involvement, and context-sensitive design in the preservation of urban heritage. These principles were applied as assessment criteria to evaluate the selected sites in Alexandria, a city in Egypt, which has undergone significant renovation projects in recent years. By aligning these projects with international preservation standards, the paper highlighted the successes and shortcomings of local interventions. Ultimately, cultural memory could be embedded into the physical and experiential layers of the city whereas urban development could remain rooted in identity, history, and continuity to preserve the legacy of cultural heritage.