Great Cities Research Articles

Can intellectual property rights pilots reduce carbon emissions? Evidence from China

In this paper, panel data from Chinese cities from 2000 to 2020 were used, and the intellectual property pilot was used as a quasi-natural experiment. The double difference model mainly tests the underlying mechanism of the impact of intellectual property rights pilots on urban carbon emissions. This study revealed that IPR pilots play an important role in reducing urban carbon emissions. Heterogeneity experiments reveal that IPR pilots are conducive to reducing carbon emissions in coastal as well as high greening cities and that the underlying mechanism through which IPR pilots affect urban carbon emissions mainly occurs at the level of innovation and the optimization of the industrial structure. In addition, this paper also validates the smoothness of the model by replacing the explanatory variables and performing a placebo test, which further strengthens the reliability of the paper’s conclusions.

Green City Development: An analysis of green open space concept and its strategies in the urban context

Green City Development: An analysis of green open space concept and its strategies in the urban context

Green cities and vector-borne diseases: emerging concerns and opportunities.

Aligned with the Sustainable Development Goals, nature-based solutions such as urban greening e.g. public gardens, urban forests, parks and street trees, which aim to protect, sustainably manage or restore an ecosystem, have emerged as a promising tool for improving the health and well-being of an ever-increasing urban population. While urban greening efforts have undeniable benefits for human health and the biological communities inhabiting these green zones, disease vector populations may also be affected, possibly promoting greater pathogen transmission and the emergence of infectious diseases such as dengue, West Nile fever, malaria, leishmaniosis and tick-borne diseases. Evidence for the impact of urban green areas on vector-borne disease (VBD) transmission is scarce. Furthermore, because of vast disparities between cities, variation in green landscapes and differing scales of observation, findings are often contradictory; this calls for careful assessment of how urban greening affects VBD risk. Improved understanding of the effect of urban greening on VBDs would support planning, monitoring and management of green spaces in cities to sustainably mitigate VBD risks for surrounding urban populations.

Analyzing The Implementation of Green-Economy Inclusive Strategy in East Java Province Through Urban Good Governance in Green-Economy Framework: The Case of Surabaya

The global uncertainty has forced countries including Indonesia to look on ways to stabilize themselves, one of them being the implementation of green-economy development. The lack of inclusive and environmental-oriented policy has created an urgency for East Java Province to prioritize the green-economy implementation. Therefore this paper analyzes a possible implementation of green-economy through Surabaya City’s green-economy concept. This city is chosen due to its status being the only city in East Java to have the Green Sister City Surabaya-Kitakyushu program. This paper uses green economy city development which has four main dimensions which are; decision making process, Implementation Capacity, green economy system and the socio-ecological dimension. A qualitative-descriptive method will be used in this paper, along with a thematic analysis technique to deeply explain the topic at hand. The result of this research is a strategy that can be referenced by Surabaya to develop the green-economy city as the city already has its basis, especially in its society’s system in approaching green-economy aspects. Aside of that, this research also presents 3 strategies of implementing green-economy policies for cities throughout East Java Province. These strategies are intended for those cities to be able to take the first step in developing a green-economy city by deeper understanding of local context, policy & capacity development, and monitoring & evaluation.

Hybrid Renewable Production Scheduling for a PV–Wind-EV-Battery Architecture Using Sequential Quadratic Programming and Long Short-Term Memory–K-Nearest Neighbors Learning for Smart Buildings

Electricity demand in residential areas is generally met by the local low-voltage grid or, alternatively, the national grid, which produces electricity using thermal power stations based on conventional sources. These generators are holding back the revolution and the transition to a green planet, being unable to cope with climatic constraints. In the residential context, to ensure a smooth transition to an ecological green city, the idea of using alternative sources will offer the solution. These alternatives must be renewable and naturally available on the planet. This requires a generation that is very responsive to the constraints of the 21st century. However, these sources are intermittent and require a hybrid solution known as Hybrid Renewable Energy Systems (HRESs). To this end, we have designed a hybrid system based on PV-, wind-turbine- and grid-supported battery storage and an electric vehicle connected to a residential building. We proposed an energy management system based on nonlinear programming. This optimization was solved using sequential quadrature programming. The data were then processed using a long short-term memory (LSTM) model to predict, with the contribution and cooperation of each source, how to meet the energy needs of each home. The prediction was ensured with an accuracy of around 95%. These prediction results have been injected into K-nearest neighbors (KNN), random forest (RF) and gradient boost (GRU) repressors to predict the storage collaboration rates handled by the local battery and the electric vehicle. Results have shown an R2_score of 0.6953, 0.8381, and 0.739, respectively. This combination permitted an efficient prediction of the potential consumption from the grid with a value of an R²-score of around 0.9834 using LSTM. This methodology is effective in allowing us to know in advance the amount of energy of each source, storage, and excess grid injection and to propose the switching control of the hybrid architecture.

Learning from the Policy and Practice of Green City Development in Phnom Penh, Cambodia

The complex challenge of managing urban growth and development in the context of climate and environmental change has led to a proliferation of policy discourses related to the ‘green city’. While useful as a buzzword, it is argued that green city discourses often overlook or even mask questions of social and environmental justice. This case study of Phnom Penh, Cambodia, shows that the presence of green and sustainable city discourses in policymaking does not reflect the reality of urban planning practices. Instead, it has produced an urban vision reflective of the priorities of global capital while contributing to the ongoing destruction of urban biodiversity and the marginalization of urban residents living in poverty. It is argued that a reconceptualization of the green city be undertaken, which incorporates understanding of participatory and distributive justice to ensure that urban planning practices are inclusive and sustainable.

Spatio-temporal characteristics and influencing factors of land disputes in China: Do socio-economic factors matter?

Land disputes pose significant challenges to social stability and development. In this paper, land dispute intensity (LDI) is measured at the provincial level in China from 2009 to 2018 and its spatiotemporal evolution characteristics and influencing factors are explored. The ordinary least squares(OLS), spatial durbin model (SDM), geodetector model, and panel threshold model are used to explore the spatial spillover effects of LDI and its potential non-linear relationship with socio-economic factors. The results reveal that LDI is spatially distributed in a decentralized form, with local areas showing the structural characteristics of “single core, multiple clusters”. The LDI exhibits a significant positive spatial autocorrelation and follows a “logarithmic” upward trend over time. The urbanization rate (UR), social security expenditures (SSE), and the number of land and resources institutions (NLRI) are important driving forces affecting LDI. The SSE and NLRI have a single threshold effect on the LDI, with a “V” shaped weakening trend, and the UR is an important factor causing nonlinear effects. Interestingly, the effect shifts from inhibition to stimulation when the SSE and NLRI cross the corresponding threshold value. This paper can provide new insights into the governance of land disputes.

Considerations on reducing emissions by increasing the use of electric vehicles in urban area

The pace between city development, increasing number of working places and emissions control is a challenge nowadays in urban environment. The gradual increase of electric cars ownership is essential for reducing the emissions level in urban areas. The city policy is of high importance for encouraging the use of electric cars, especially for trip purposes to work and business. The paper deals with the effects of increasing the fleet of electric vehicles on the emissions level in urban areas. The effect of considering a certain share of electric car trips to work and business is analyzed. Considering this, the concept of “green city corridors” can be introduced and considered as a priority for the transport policy in urban areas.

RACIAL INEQUITY IN GREEN INFRASTRUCTURE AND GENTRIFICATION: Challenging Compounded Environmental Racisms in the Green City

AbstractThis article explores the role that green gentrification plays in exacerbating racial tensions within historically marginalized urban communities benefiting from new environmental amenities such as parks, gardens, waterfront restoration and greenways. Building on extensive qualitative data from three cities in Europe (Amsterdam, Vienna, Lyon) and four cities in the United States (Washington, Austin, Atlanta, Cleveland), we use thematic analysis and grounded theory to examine the complex relationship between historical environmental and racial injustices and current racial green inequities produced by the green city agenda. Our analysis also offers insights into the main differences in how community members articulate concerns and demands over racial issues related to green gentrification in Europe versus North America. Results show that urban greening—and green gentrification specifically—can create ‘compounded environmental racisms’ by worsening racial environmental injustices and further perpetrating green racialized displacement, re‐segregation and exclusion. The latter is produced by the racial inequities embedded in green infrastructure projects and the related unequal access to environmental benefits, affordable housing, political rights and place‐making. Moreover, we find that settler colonial practices combined with persisting exposure to toxins and re‐segregation in the United States together with neocolonial spatial and social practices in Europe shape how racialized community members perceive and interact with new green amenities.

Konsep “kampung pinisi-nusantara” sebagai upaya pengembangan ¬ethno-maritime tourism Sulawesi Selatan-IKN yang inklusif dan terkoneksi

Based on Law Number 3 of 2022 concerning the National Capital City, the new National Capital City (NCC) area was designated on January 18, 2022, named Nusantara. The relocation of the National Capital aims to distribute development to the Eastern part of Indonesia and establish Indonesia as a smart, green, and beautiful city center. Bulukumba Regency in South Sulawesi has unique maritime tourism potential, with its natural beauty and the tradition of building Pinisi ships being particularly attractive. By developing tourism based on local wisdom values in Bulukumba, it can support the goal of relocating the National Capital. This paper is prepared as an alternative recommendation in efforts to connect the NCC with South Sulawesi in terms of development and development. Literature study and SWOT analysis methods are applied to generate a concept that is not only theoretical but also practically implementable. So far, research on existing recommendations for maritime tourism concepts has been partial and not interconnected between different regions. Based on this, the author proposes the concept of "Kampung Pinisi-Nusantara" as an effort to develop inclusive and interconnected ethno-maritime tourism between the NCC and South Sulawesi.

Green open spaces: climate mitigation of climate change in Indonesia

Introduction: The provision of microclimate for young people is an important prerequisite for outdoor thermal comfort in urban communities. The microclimate consists of four elements: air temperature, humidity, wind speed and solar radiation. The City Green area consists of urban landscape, urban forest green, urban recreational green, sports green and garden green. The green open spaces are classified according to the state of the region, not according to the shape or structure of the vegetation. The green land is intended to maintain land availability as a catchment area. Methods: in this study the authors tried to use a systematic literature review method. This method tries to collect existing literature and articles which are then reviewed to look for potential green open spaces as a solution to addressing microclimates. Finding: In the early 1990s, the United Nations Framework Convention on Climate Change (UNFCCC) was established as the body to address global warming: mitigation and adaptation. Mitigation involves finding ways to slow, control or absorb greenhouse gas emissions from forests or other carbon "sinks". In response to global warming and climate change, the Government of Indonesia enacted Law No. 26 in 2007. Law No. 05/PRT/M/2008 on Spatial Planning and the Guidelines of the Minister of Public Works on the Provision and Use of Green Open Space in Urban Areas stipulate that green open space is defined as space that extends/expands and/or clusters, which is more open for human use, and is a place for plants to grow, both naturally and intentionally planted. Conclusion: Benefits of green space include supporting the health, welfare and safety of urban residents. Green spaces can also promote the production of natural resources, prevent natural disasters, protect the environment, promote health and safety, and promote entertainment activities and map development.

“NOT VIRAL, NOT POPULAR”: WHAT IS THE FORMAT FOR THE DEVELOPMENT OF IKN? IN A PARTICIPATORY PLANNING LENS

The Indonesian government administration, which was originally centered in Jakarta, will be moved in 2024. Interestingly, the construction of the Ibu Kota Nusantara (IKN) reaps pros–cons from the community. Discussions about the IKN planning pattern continue to be debated. To conduct this event, the orientation of the article is to invite public participation (outside the government) to determine the choice of what planning format is valid for the sustainability of the new IKN development. The profiles of respondents are local netizens who often use social media to test their insights who live around the IKN. The cluster sampling survey was carried out partially using online interviews throughout the 2022 period. Besides, the data collection process only focused on 251 respondents who have skills and are certified as urban planners who are members of associations with special expertise. The collected primary data is extracted into the Chi–Square model. As a result, it detects that the planning formulation suggested by netizens has an effect on the sustainability of the IKN development. From various walks of life including: scientists, observers/environmental activists, community leaders, social media observers, and entrepreneurs, the majority consider the most realistic planning approach for the sustainability of IKNs to be green cities. For the long–term, netizens reason and assume that this concept fulfills the necessary of green open space (RTH).

Make Way for the Wind—Promoting Urban Wind Corridor Planning by Integrating RS, GIS, and CFD in Urban Planning and Design to Mitigate the Heat Island Effect

Under the trend in climate change, global warming, and the increasingly serious urban heat island effect, promoting urban wind corridor planning to reduce urban temperature and mitigate the effect of urban heat islands has received widespread attention in many cities. With emerging awareness of the need to explicitly incorporate climate considerations into urban planning and design, integrating current spatial analysis and simulation tools to enhance urban wind corridor planning to obtain the best urban ventilation effect has become an increasingly important research topic in green city development. However, how to systematically carry out urban wind corridor planning by employing related technology and simulation tools is a topic that needs to be explored urgently in both theory and practice. Taking Zhumadian City in China as an example, this study proposes a method and planning approach that uses remote sensing (RS), geographic information system (GIS), and computational fluid dynamics (CFD) in an integrated way to understand urban landscape and to conduct urban wind corridor planning. The research results reveal that the urban form of Zhumadian City favors the development of urban wind corridors, and that the railway lines and some major roads in the city have the potential to be developed as the city’s main wind corridors. However, there are still ventilation barriers resulting from the existing land use model and building layout patterns that need to be adjusted. In terms of local-level analysis, the CFD simulation analysis also reveals that some common building layout patterns may result in environments with poor ventilation. Finally, based on the results of our empirical analysis and local planning environment, specific suggestions are provided on how to develop appropriate strategies for urban wind corridor planning and adjustments related to land use planning and building layout patterns in order to mitigate the impact of the urban heat island effect.

Architectural Heritage and Archetypal Landscape Approaches Facing Environmental Hazards

The research question in this paper concerns elements of nature, such as earth, water, fire, and air, as they have a dual meaning, indicating both hazard and heritage. The relationship of cities with blue–green infrastructure is an example of this. Cities might be surrounded by either water or forest, though the latter has been less investigated as a nature-based solution for climate change adaptation. The connection between water and architecture can also be seen in the seafront type of architectural design, in the architecture of harbours, port facilities, aquariums or thermal baths. This paper aims to present a comprehensive analysis of all of these various architecture programs that were carried out during the first half of the twentieth century. Although the styles of Art Nouveau and Interwar were widely spread, otherness in regional geographical locations drew lessons from the vernacular architecture. Inspiration was drawn mainly from southern Europe in the Cycladic islands for the interwar/international style and towards the east and centre of the continent in Romania and Hungary and up to the north in the Baltic states for the national romantic art nouveau style. A local seismic culture is prevalent in areas that are affected by earthquakes. In the context of the geological conditions related to water and earthquake hazard, the anthropic reshaping of rivers and canals (and alluvial soil deposits) generates liquefaction vulnerability. Significant also is the way in which the urban wildland interface shapes the relationship between wild green space and cities. Urban protected nature parks and urban forests contribute to wellbeing but are also vulnerable to wildfire. This research attempts to find equivalents to the local seismic culture in cases of climate change-induced hazards, such as floods and wildfires, in Romania, Italy and Portugal. As part of the project presented for the case study featured in this paper, significant documentation was achieved through literature reviews and field trips. For the latter, walkscape methodology was used, which was also useful for the first round of results and the mapping required to indicate earthquake hazards near water locations in Bucharest, Romania.

Analyzing the relationship between the efficiency and safety of a turbo roundabout by the factor analysis method

The construction of cities and economic development lead to more and more serious environmental pollution, and the concept of green and low-carbon city has been proposed. Therefore, a series of requirements have been put forward for transportation. CO and other pollutants will be produced in the exhaust of conventional fuel vehicles, which will seriously affect the urban environment, especially at intersections with large passenger and vehicle flows. When multiple roads, especially more than 4 roads, intersect on urban roads, traffic organization can usually be achieved by using a roundabout. However, due to the limited capacity of the conventional roundabout, with the rapid increase of the traffic volume, and there are many vehicles in the circle lane change and interweaving behavior. This has caused serious congestion at the roundabout, the significantly increase in pollutants emissions and the decline in air quality. As an unconventional design, the turbo roundabouts use canalized traffic to allowed drivers to select the appropriate lanes in advance depending on their destinations so that different lanes within the circle do not interfere with one another, which improves the safety of the intersection while ensuring capacity. The main purpose of this paper is to analyze the traffic efficiency and safety of the conventional roundabout scheme and turbo roundabout scheme for five-way intersections. Using VISSIM to simulate different forms of roundabout and analyzing the six selected evaluation indicators. The number of vehicles in different entrance lanes and the diameter of the circle are selected as sensitivity factors for sensitivity analysis. Finally, the factor analysis method (FAM) is used to classify the six indicators into two categories: traffic efficiency and traffic safety, so as to comprehensively evaluate the different schemes. The results show that the difference in performance between the two schemes was not significant at low traffic volumes. At high traffic volumes, the turbo roundabout was better than the conventional roundabout in terms of emissions, safety and throughput efficiency. CO emissions from vehicles on conventional roundabout are generally higher than those on turbo roundabout, up to 53.62%. Therefore, the turbo roundabout is more appropriate for heavy traffic conditions.

An Assessment of the Possibility of Using Unmanned Aerial Vehicles to Identify and Map Air Pollution from Infrastructure Emissions

Sustainable development and the creation of smart, green cities requires cooperation in many scientific fields, including those related to ecology, mobility, or sustainable management, among others. Environmental protection is a particularly important element here. Atmospheric pollution, due to air movements, spreads over very large areas; therefore, air quality monitoring is crucial to ensure protection from harmful substances. One of the most severe sources of air pollution, accounting for as much as approximately 25% of total annual emissions within the EU, is road transport. Therefore, the European Union has set an ambitious target to reduce total emissions to 55% for cars and 50% for vans by 2030. In recent years, unmanned aerial vehicles (UAVs) have become increasingly popular in many scientific fields, including environmental protection and photogrammetry. The use of UAVs to identify harmful pollutants allows them to gain an advantage over conventional detection methods, due to the possibility of remote (therefore safe for humans), faster, and area-based measurements. Given the ever-expanding scale of the use of this technology, this paper presents the possibilities of using UAVs to identify and visualize (map) pollution. The examples presented in the foreign literature, as well as our own research, in imaging the altitude distribution of air pollutants; gaseous pollutants: C6H6, HCHO, SO2; and particulate matter: PM1, PM2.5, PM10 demonstrate the validity of such measures. This research was carried out in the area of one of Poland’s key A4 highways. The maps obtained allow for an area-wise and altitude-wise presentation of one of the significant air pollutants in the EU. In addition, they can be a valuable source of information for the implementation of future projects and the improvement of road infrastructure, thus contributing to the reduction of air pollution and the creation of so-called “green cities”.

Comparative study and effects of urban green scape on the land surface temperature of a large metropolis and green city

Previous studies have provided valuable insights into the impact of green space (GS) on land surface temperature (LST). However, there is a need for in-depth comparative research on changing landscape patterns in cities and their effects on the urban thermal environment. This study investigates the spatial arrangement of GS and the influence of impervious surfaces on LST in urban areas, examining their cooling and warming effects in the urban landscapes of Beijing and Islamabad. The study aims to assess the impact of the spatial arrangement of GS on LST using a moving window of 1 km2 to analyze the overall effect of landscape patterns on the urban environment. Using Gaofen (GF–2) and Landsat–8 satellite data, we examined the biophysical surface properties of core urban areas. The results indicate a significant difference in the mean LST of 5.44 °C and 3.31 °C between impervious surfaces and GS in Beijing and Islamabad, respectively. The barren land and GS in Islamabad experience a higher LST of 3.39 °C compared to Beijing, which accounts for 1.39 °C. In Beijing, configuration metrics show no significant effect on urban LST, while edge density (ED) exhibits a slightly negative trend. In contrast, in the city of Islamabad, the landscape shape index (LSI), patch density (PD), and number of patches (NP) metrics have a significant influence on LST. The cooling effect of GS patches (0.1–0.5 ha) is more pronounced, while that of GS patches of 15–20 ha shows no significant effect on LST. The temperature difference (TD) of 5.01 °C was observed from the edge of GS in Beijing and 3.3 °C in Islamabad. Considering Islamabad's lush green scape compared to Beijing, this study suggests that Islamabad may experience an increase in LST in the future due to urbanization. This study's findings may assist urban policy-makers in designing sustainable green city layouts that effectively address future planning considerations.

Implementasi Konsep Akuntansi Syariah Dalam Pembangunan Infrastruktur Pada Ekonomi Biru Di Indonesia

There are 514 urban areas in the archipelagic nation of Indonesia (Ministry of Home Affairs, 2016). There are many cities in Indonesia that are able to provide a sense of comfort and security for their residents, this of course has an impact on population growth. However, the amount of waste that can be generated and stored is limited by the carrying capacity of the urban environment. Using the idea of ​​a "green city" which consists of nine elements of road infrastructure, traffic, green open space, clean water, noise, energy, housing, clean air and buildings is one way to overcome the above problems. All these qualities need to be utilized immediately with a comprehensive systems approach and in accordance with economic, social and environmental principles in sustainable development. Blue economy approaches can be used to eliminate waste. The “blue economy” is a term that is becoming increasingly popular in today's seas and oceans. The aim of this concept is to combine sea base development opportunities with environmental management and protection. Four conceptual interpretations of the blue economy were determined through research into the dominant discourse in international economic policy documents. How the blue economy works is also examined through an “in practice” analysis of the blue economy and related actors. Next, the scope and focus of the blue economy is explored specifically on the maritime industry, which is included or excluded in various conceptualizations. This analysis reveals areas of agreement and conflict. The consensus range reflects the growing trend towards the commercialization and valuation of nature, delineating and defining maritime boundaries and enhancing the security of the world's oceans. There are several areas of conflict, particularly disputes over the legitimacy of individuals as part of the “blue economy”, highly carbon-intensive industries such as oil and gas and the growing deep sea mining industry. Oceans are becoming increasingly important in terms of potential international trade opportunities through intermediaries and buyers. the behavior of the model supporting such a relationship in the ocean is acceptable from a regular and economic point of view. The relationship between land and sea is increasing in the role and importance of the "blue economy" as the term emerges in the background. . A literature review was conducted to analyze the correct definition of the blue economy. This definition is analyzed based on the minimum requirements that are important for the blue economy. This article also tries to compile various types of activities related to marine services. This is done to determine what can be considered priority areas for blue economic growth. The blue economy concept is based on national economic development. This is comprehensively useful for achieving overall national development. Environmental accounting is stated as a process of reducing negative values ​​and creating positive values ​​in environmental accountability.

Wireless Sensor Networks for Green Cities: A Comprehensive Review of Environmental Pollution Monitoring

This research paper investigates the design and implementation of a Wireless Sensor Network (WSN)-Based Data Acquisition System tailored for collecting environmental pollution factors with a specific focus on contributing to the realization of a Green City. Leveraging various literature surveys on WSN and its applications with different techniques, a comprehensive analysis of the existing body of knowledge in the field. The paper explores the deployment of WSN technology as a cost-effective and scalable solution for real-time monitoring of pollution-related parameters, including air and water quality, noise levels, and other relevant environmental factors.By synthesizing insights from diverse literature sources, propose an intelligent and adaptable WSN framework capable of capturing, analyzing, and transmitting real-time environmental data. The research highlights the importance of integrating advanced sensor technologies within the WSN infrastructure to ensure a holistic monitoring of pollution factors. This analysis also delves into various data acquisition methodologies and explores the potential for advanced data analytics and visualization techniques to derive meaningful insights

Research on Regional Industrial Layout and Structural Adjustment and Upgrading under Digital Economy

Digital transformation promotes the change of urban governance. Based on the concept of "system", this paper focuses on exploring the influencing factors and evaluation indicators of the industrial structure adjustment and energy production and consumption structure adjustment of green smart cities in the new era under the promotion of digital economy, providing a strong theoretical basis for the comprehensive evaluation of the influencing factors in the later period.