City Design Research Articles

Rethinking residential building design in high-density cities for enhancing pandemic resilience: Balancing importance and practicality

Rethinking residential building design in high-density cities for enhancing pandemic resilience: Balancing importance and practicality

The co-creation of public value: city and architecture design as a common good

The co-creation of public value: city and architecture design as a common good

Analysis and Validation of Sponge City Construction in Mountainous Cities based on SWMM - Taking Nanan District of Chongqing as an Example

Sponge city construction is one of the key topics in today’s research. China’s sponge city construction has gradually entered the stage of optimization and effect evaluation. However, there are still some gaps in issues such as the verification of the effect of sponge cities. Therefore, in this paper, Storm Water Management Model (SWMM) is carried out by collecting data on surface runoff, waterlogging, peak flow, control rate, etc. in Nanan District of Chongqing City. At the same time, reasonable Low Impact Developments (LID) facilities such as rain gardens, permeable paving, bioretention tanks, rain barrels, rooftop rainwater harvesting and rooftop gardens are incorporated into the sponge city design and verified by using a typical rainfall process with a return period of 5a and a duration of 3 hours. The results of the study showed that the surface runoff drainage time in one catchment was 11.1% faster before and after the LID facilities were installed in contrast, the peak flow reduction rate of the main pipe was 71.55%, and the average runoff control rate in each catchment was around 40.57%. In conclusion, the LID facilities are not effective enough to reduce the rainfall runoff above the medium rainfall, while they are more effective below the medium rainfall.

Urban burden of disease estimation for policy making

Abstract Introduction The Urban Burden of Disease Estimation for Policy Making (UBDPolicy) project aims to estimate the health impacts resulting from urban and transport planning related exposures in nearly 1000 European cities. So far, quantitative burden of disease assessments have estimated premature mortality attributable to the environmental stressors of air pollution, noise, urban heat islands and lack of green space for the year 2015. Regular reporting and trend monitoring of the health impacts associated with urban environments is crucial for assessing the wider impacts of urban and transport planning. Methods For almost 1000 European cities, quantitative Health Impact Assessments (HIAs) will be conducted that employ the comparative risk assessment methodology. Baseline exposure levels of air pollution, noise, urban heat islands and green space will be estimated and preventable health impacts modelled using counterfactual exposure scenarios. Analysis will comprise two components: firstly, the 2018 HIA will incorporate multiple environmental exposures for that year, while the second component will monitor trends at three-yearly reporting intervals covering the years of 2015, 2018, 2021 and 2024. Results Results are intended to shape evidence-informed urban planning and policies throughout Europe. By ranking cities according to environmental exposures and health impacts, cities are encouraged to address challenges and learn from successful urban design and planning policies in other cities. Discussion HIAs serve as an effective tool for identifying the health impacts of current and future urban policies. The provision of burden of disease estimates will provide policy-makers and practitioners robust data for informed decision-making, while estimates over time will allow tracking of changes from implemented policies. To fully harness the potential of cities as key drivers of sustainable and healthy living, robust evidence must be at the forefront of this change. Key messages • A multitude of urban and transport planning pathways contribute toward the health of urban populations. • Compact city designs often promote health, however there are exceptions.

Whose forest, whose values? Planning for Atlanta’s “South River Forest”

ABSTRACT Atlanta, Georgia's (USA) proposed South River Forest (SRF) is a 3,500-acre area straddling southeast Atlanta and parts of neighboring DeKalb County that would include non-contiguous greenspace and developed land uses. Catalyzed by the 2017 Atlanta City Design process, the SRF concept recognizes the ecologically rich, urban forest patches in this predominantly African American part of the metro area. SRF advocates point to the climate and environmental equity benefits of green space conservation for underserved communities and the personal benefits of having wildland-like outdoor recreation areas within the city. To gauge public perceptions of the SRF, promoters conducted the South River Forest Consensus Building & Stakeholder Engagement process in 2022, which included an online survey querying respondents' interactions with and personal relationship to the SRF. The findings showed overwhelming support for the preservation effort; however, eighty percent of respondents identified as white and just nine percent as black. This composition contrasts sharply with most SRF neighborhoods, which question whether black ways of being in nature were captured by the engagement process. Our analysis also brings attention to an alternative, black-led vision for the area that was not reflected in the engagement process and the implications of this erasure for recognition justice.

Place of the people/people of the place: a spatial structure of vernacular practices in Hong Kong

This paper delves into Hong Kong's vernacular spatial cultures and their role in shaping the city's identity. Through a careful architectural survey, the study uncovers unique vernacular spatial practices in Hong Kong, categorising them into eleven vernacular typologies at the district scale. These practices challenge the traditional top-down approach to city planning and design, offering valuable insights into how informal and vernacular practices can create more inclusive, sustainable, and resilient urban spaces. The paper contends that the conventional approach to architectural design has been limited by its focus on abstract interpretations of the city, and argues for a spatial structure that emphasises the empirical study of the physical elements and cultural habitation of the citizens. The urgency of this research lies in its potential to revolutionise urban space production, address social problems and needs, and provide a unique spatial identification for cities in Asia and beyond.

Spatial Big Data and Analysis Strategies Supporting Geographic Information System for Transportation (GIS-T) in Conceptual Design, Modelling, and Decision-making: A Review

Abstract. Transportation is a key component in urban design for cities’ efficiency and residents’ life quality, and GIS has the capability of handling data management, model design, and scientific decision-making for transportation studies. This article reviews how spatial big data and analysis strategies help GIS-T studies from the phases of conceptual design, modelling, and decision-making. In this research, we firstly summarized categorizes of data objects and relevant information for real-world issues from transportation applications in the conceptual design phase. In the modelling phase, optimization strategies for transport planning and accessibility measures through network data were also summarized. Finally, we reviewed spatial analysis methods in supporting transport decision-making, and how spatial methods take advantage of geography features of transport variables in previous studies. Our research primarily focuses on geography research with transportation topics as applications, and this work can help transport experts to have a better understanding of GIS values for transportation modelling and planning.

An Analysis of Heat Waves in Disaster Management

This paper examines the current state of disaster management for heat waves in the United States. The paper begins by providing the status of heat waves in the U. S. A. and the detrimental effects they can have on society, such as human and animal health concerns, damage to infrastructure, and strained power grids. The paper then provides a synopsis of the disaster management framework provided by the U. S. government. This entails a description of the five stages of disaster management: Prevention, Protection, Mitigation, Response, and Recovery. Next, the current public health measures taken to address extreme heat are organized within this framework, described, and assessed based on a review of existing literature. These public health measures include protection of the power grid, incorporating green and cool spaces into city design, cooling centers, and heat warning systems. The results of the literature review show that actions taken prior to an extreme heat event are more effective than actions taken in response to the event or during the recovery from it. Measures taken in the Protection and Mitigation stages have a more reliable and documentable benefit to human health than measures in the Response and Recovery stages. Additionally, these actions, such as safeguarding power grids and installing green infrastructure in urban environments, generally provide financial benefits that exceed their costs, making them good investments for both public and private entities. It is therefore recommended to focus programs and investment on measures in the Protection and Mitigation phases.

Jane Jacobs's urban vitality focusing on three-facet criteria and its confluence with urban physical complexity

Urban vitality is crucial for sustainability, contributing to social cohesion, information exchange, and overall quality of life. Understanding and quantifying urban vitality is essential for effective planning and policymaking, yet it remains a complex task. Previous studies have primarily focused on single-dimensional measures of urban vitality, overlooking the multifaceted nature emphasized by Jane Jacobs, including spatiotemporal dimensions. This study revisits Jacobs's urban vitality, focusing on three key indicators of intensity, diversity, and consistency of urban vitality. Additionally, we explore the relationships between urban complexity and urban vitality. We employ variety, uniformity, and connectivity metrics to assess urban complexity, which examines the physical structures of buildings, streets, and blocks. Linear regression and Maximal Information-based Nonparametric Exploration statistics for non-linearity analysis are used to determine the associations between urban complexity and urban vitality. Our findings reveal nuanced details of the relationships. Notably, variety and connectivity variables have more significant influences on urban vitality than those related to uniformity. Furthermore, the analysis highlights the differential impacts of complexity variables on different types of vitality. These insights provide valuable guidance for planners and policymakers, facilitating the design of sustainable and vibrant cities by considering optimal complexity measures of built environment that enhance urban vitality.

The Transition toward Smart and Sustainable Cities

Increasing population followed by uncontrolled city expansion neglected many essential criteria, resulting in management challenges, social service inequities, and worsened environmental conditions. However, this development is always ongoing and overshadows daily life. City administrators desire to implement smart cities to address a wide variety of prevalent issues in metropolitan areas. This study aims to take steps toward creating a smart city. Citizens' understanding and support for a project in a city are crucial to its success. The focus of this research is to examine citizens' awareness of smart cities and their importance in helping city managers, urban planners, and architects in improved planning to realize the vision of a smart city. This article comprehensively explains the smart city by compiling and evaluating relevant facts. Also, numerous smart cities throughout the world have been researched and compared to gain insight. Furthermore, being the most important part of a smart city, the level of public knowledge about "smart cities" in Iran through a survey distribution has been analyzed. This study has the potential to create new insight into city development. The findings offer novel perspectives that can be applied to the design and planning of intelligent cities.

Cold Coastal City Neighborhood Morphology Design Method Based on Multi-Objective Optimization Simulation Analysis

In the context of global warming and the frequent occurrence of extreme weather, coastal cities are more susceptible to the heat island effect and localized microclimate problems due to the significant influence of the oceanic climate. This study proposes a computer-driven simulation optimization method based on a multi-objective optimization algorithm, combined with tools such as Grasshopper, Ladybug, Honeybee and Wallacei, to provide scientific optimization decision intervals for morphology control and evaluation factors at the initial stage of coastal city block design. The effectiveness of this optimization strategy is verified through empirical research on typical coastal neighborhoods in Dalian. The results show that the strategy derived from the multi-objective optimization-based evaluation significantly improves the wind environment and thermal comfort of Dalian neighborhoods in winter and summer: the optimization reduced the average wind speed inside the block by 0.47 m/s and increased the UTCI by 0.48 °C in winter, and it increased the wind speed to 1.5 m/s and decreased the UTCI by 0.59 °C in summer. This study shows that the use of simulation assessment and multi-objective optimization technology to adjust the block form of coastal cities can effectively improve the seasonal wind and heat environment and provide a scientific basis for the design and renewal of coastal cities.

Assessing the energy system's greenhouse emissions via the health of Smart Territories and Cities

The aim of this paper is to understand how the main drivers of air pollution and greenhouse emissions impact public health in a Smart Territory — meaning a technologically integrated city or neighborhood — as well as how to design an optimized energy system model beyond only data by including the holistic experience of its people through phenomenology and ethics. We understand that a Territory and a City is a complex system where mathematical tool modeling known as Design of Experiment (DOE) and its optimization solutions are required to establish causality and identify the variables that have a broader impact on public health so that mortality rates due to air pollution are reduced. DOE's statistical branch is a novel methodology when applied to energy systems and the design of Smart Territories and Cities. Because of it, we have been able to demonstrate how energy emissions, capacity and Levelized Cost of Energy (LCOE) affect the mortality rate and create the foundations for building fully decarbonised energy systems enhanced by mathematical solutions. However, the Cartesian approach of extrapolating from models which align themselves with economic growth alone will not solve the energy dilemma. In fact, the current energy transition project is based on outdated archetypes that lead to scary futures. To course-correct the problematic energy model of a Smart Territory, phenomenologists and creative imagination need to be cultivated and put into action together with mathematical modeling, leading to vectors of positive change and adaptation. Only then might the energy models designed to be reproducible could became ethically virtuous and therefore accepted by the Territory's co-dwellers within the chain of causalities.

Developing a model for measuring the spatial disability level of cities within the framework of barrier-free pedestrian accessibility: the case of Kırklareli City centre

The problem of disability is directly related to the physical barriers encountered in urban spaces. Pedestrian accessibility performance is a notable urban quality indicator. Universal design principles and barrier-free design standards are important in making urban spaces usable for everyone. However, projects in this context generally cover specific areas of cities. Bringing an entire city into compliance with barrier-free design standards requires high cost and time. Therefore, determining the spatial disability level of the urban texture and planning project stages constitute a critical process for local governments. This study proposes a model to measure the pedestrian accessibility performance of medium-sized cities with relatively walkable distances within the framework of spatial barriers and to identify priority intervention points. In this context, Kırklareli city centre was selected as a case study area. According to the model developed with the support of GIS, the “ideal accessibility network” is determined for the citizens, and the performance level is calculated by identifying the spatial barriers on this network. The model was developed using components that can be applied to any city and tested in a sample urban environment. This conceptual model contributes to urban science and local government policy by providing a monitoring mechanism for spatial disability that can be constantly tracked by citizens, and by supplying an information base for projects to be developed by local governments. It is hoped that this study will popularise pedestrian-oriented spatial design and control in cities where walkability is postponed due to the focus on wheeled vehicle mobility and where spatial barriers are felt only by disabled individuals.

Assessing the impact of maker services in Barcelona and Milan towards the 15-minute city model through their accessibility

Re-organizing cities with proximity-based urban planning models such as the 15-Minute City model is an emerging and promising direction of policy, practice and research for sustainable cities. The planning of new urban spaces, infrastructures and mobilities requires planning and designing services that support citizens in their proximities. Along this direction, the emergence of the Maker Movement and its maker laboratories (Fab Labs, Makerspaces, Hackerspaces, DIYbio Labs, and so on) contributes to building the infrastructure for distributed design and manufacturing services in cities. How can we adopt the impact assessment of maker services in terms of potential accessibility for designing services towards the 15-Minute City model? We explore this issue within the context of the metropolitan areas of Barcelona and Milan by analysing 1) the 15-minute walking distance catchment areas of their maker service; 2) how to adopt this method for service design and impact assessment in the 15-Minute City model.

LAND SURFACE TEMPERATURE FORECASTING IN THE CONTEXT OF THE DEVELOPMENT OF SUSTAINABLE CITIES AND COMMUNITIES

The article examines the aspects of land surface temperature forecasting for effective planning and development of sustainable cities and communities. The relevance of the research lies in the need to develop effective approaches to the analysis and forecasting of climate data, for the timely determination of existing problems and ways to solve them, in accordance with civilizational challenges. The trends of changes in the land surface temperature from the middle of the 20th to the beginning of the 21st century were analyzed, using the example of five megacities located in different regions: Tokyo (Japan), Lagos (Nigeria), Berlin (Germany), Singapore (Singapore) and Belo Horizonte (Brazil). The results of the analysis of changes in average monthly and average annual temperatures are presented. The factors affecting the formation of the temperature regime of each of the cities are determined. The role of urbanization as a key factor in the development of the city is described, the main challenges caused by it are considered. An overview of megacities from the point of view of sustainable development was carried out. Prospects for urban development and measures aimed at reducing the urban heat island effect are considered. The role of modern technologies, in particular machine learning for predicting the land surface temperature, is described. The expediency of land surface temperature forecasting, in order to implement strategies for mitigating negative consequences and achieving the goals of sustainable development, is substantiated. The conducted research makes it possible to be convinced of the need for a responsible approach to the design and development of sustainable cities and communities. The temperature of the earth’s surface is one of the key indicators that allows you to monitor the main trends of urban life and can be an indicator of the effectiveness of strategies used to increase comfort and sustainable development.

Cities in electronic games: how they present and impact real urban areas?

ABSTRACT This study investigates the interactions between virtual cities in electronic (video) games and real urban environments, highlighting a significant gap in the literature regarding the influence of real cities on virtual counterparts and vice versa. Drawing on classical urban theories, it sets two primary objectives: to systematically review how real cities are represented in games and to explore the impacts of virtual cities on real urban areas. Through typological analysis, it identifies two pathways – form and function – through which real cities manifest in games, using specific cases like Cities: Skylines to illustrate these pathways. The principle for virtual city design is also outlined, with an emphasis on the “selection” and “subtraction” of real urban elements in designing processes. Additionally, it discusses how virtual cities impact urban tourism, fostering phenomena like anime pilgrimages, and urban planning, and enhancing public engagement in planning processes. Finally, this research contributes to some newly emerging theories such as Digital Twins by elucidating the interactive relationship between physical and virtual urban spaces.

Considerações sobre a paisagem sociocultural e ambiental do Rio Jaú

Despite fundamental roles of rivers in the history and evolution of urban centers, city design has often disregarded water networks in the midst of accelerated urban expansion. The lack of connection between rivers and the urban landscape has over time contributed to the exacerbation of socio-environmental problems. This research aims at understanding the relationship between the Jaú River and Jaú’s cityscape through the following perspectives proposed by Jean-Marc Besse (2014): historical, sociocultural and socio-environmental landscapes. The river landscape of Jaú is characterized based on information taken from scientific and documentary sources (textual, iconographic and cartographic). The results of analysis are then presented to systematically characterize challenges to landscape planning in this case study. This research pertains to the contemporary effort aiming at understanding landscapes by analyzing historical and current perspectives allowing us to restore connections between a city and its natural environment. In conclusion, it is argued that the neglect of the Jaú River valley throughout urban expansion contributed to the disconnection between the river landscape, the city and its inhabitants’ daily lives. As an alternative, we propose a landscape planning process that integrates the river’s environmental and social dimensions.

The Effects of Foreign Direct Investment on Green Technology Innovation: New Evidence from China’s 278 Cities

ABSTRACT Foreign direct investment (FDI) has played a pivotal role in fostering economic development, and the FDI technology spillover effect is one of the core forces driving an open economy toward new green growth milestones. Evaluating the impact of FDI inflows on green innovation is essential for sustainable and environment-friendly city design. Based on the panel data of 278 cities in China from 2010–2019, we conducted an empirical analysis to test the impact and mechanisms of FDI on green technology innovation (GTI). The results demonstrate that FDI has a positive and highly significant effect on GTI. The channel analysis indicates that the FDI significantly stimulates urban GTI through two mechanisms: alleviating financing restraints and mitigating the risk of new GTI in the early stages. In the heterogeneity analysis, we find that the FDI effect is more pronounced in China’s resource-based regions with high levels of institutional and human capital and in regions with low-carbon pilot policies and good protection of intellectual property rights. Furthermore, the study shows FDI can affect GTI in neighboring areas through spatial spillover effects. Our findings underscore the importance of encouraging and sustaining internationalization in environmentally friendly sectors to foster green transformation. In essence, developing foreign investment policies and enhancing the green technology spillover effect of FDI are vital for strengthening GTI capacity.

The Moderating Effects of Urban Design on Willingness to Walk in a Tropical City

Walkability and the willingness to walk (WTW) are enhanced with supportive urban design in temperate climate cities. Walking in a tropical city is challenged by the physiological stresses brought on by high air temperature, intense sunlight and humidity but it remains unknown to what extent urban design compensates for these stressors in walking behaviour. In this study, the relative impacts of the walking environment and microclimate on WTW and on walking distance were measured in a field study in Singapore. Participants executed a planned walk and reported assessments of 10 environmental factors, as well as WTW, at assigned locations. Restoration in WTW was observed at certain points on the itinerary across participants, while total voluntary walked distance equalled that of an indoor, air-conditioned walk at the same location. All environmental design variables showed a positive relationship with WTW, but not with objectively measured temperature and humidity. Urban design has a significant impact on willingness to walk in a tropical city.

Guideline towards sustainable infrastructure in new urban communities – Egypt

The challenges related to sanitation and water management in new urban communities have contributed to the emergence of visions of Integrated Urban Water Management (IUWM) and Water Sensitive Urban Design in cities worldwide to keep pace with these subtle changes in the shape of the urban environment. This research paper aims to monitor the main obstacles and challenges facing residents of new cities in Egypt and the environmental impacts resulting from those challenges in the urban context. A questionnaire was conducted among a group of the population. This study took the economic housing model for low-income people in the 6th of October City in Egypt as a case study. As a result, the study found that the main challenges facing the residents of these areas and their impacts are:1) Lack of regular maintenance. 2) Health risks to the population. 3) Damaging of public parks and gardens. 4) Pollution of the surrounding environment, including soil and water. 5) Lack of state funding for maintenance and Limited financial resources available for projects in this type of housing. 6) Lack of government engagement in preparing programs to raise population awareness and clarity in environmental goals and quality of life policies. 7) Lack of community initiatives to participate in decision-making. 8) Lack of political guidance on planning processes for sustainable infrastructure.