AESOP Eprints
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Explore the Improvement of Humanity-Oriented Transportation through Adaptive Topology Optimization of Traffic Networks Using Density Fields
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024The concept of “humanity-oriented transportation” primarily stems from the negative impacts of "car-oriented transportation," prompting a shift in thinking towards emphasizing a more humane approach to traffic planning to ensure public safety. This involves prioritizing pedestrian and bicycle traffic on roads, increasing pedestrian activity space, and reducing the impact of motor vehicles on road users. This prompted the present study to explore the utilization of Shepard density interpolation method to establish traffic density fields and to introduce topological optimization models to investigate how to reasonably reduce vehicular space within the acceptable range of overall service levels on urban roads, thereby releasing more space for pedestrian activities. By combining adaptive refinement strategy, this allows for more accurate estimation of traffic density, facilitating effective allocation of both vehicular and pedestrian spaces.
Keywords: Humanity-Oriented Transportation, Topology Optimization, Shepard interpolation, Adaptive Refinement Strategypublished versio
Research on Informal Residential Space Under Viaducts in Shanghai: From the perspective of Socio-spatial Transformationi
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024Since 2019, China has prioritised high-quality development and a ‘people-centric’ approach in urbanisation, emphasising ‘people-oriented’ planning. This shift has highlighted overlooked spaces and needs, such as the informal use of space under viaducts in inner cities due to their accessibility and unused areas. Formal spatial transformations are cautious, addressing safety, sanitation, and publicity issues. This article examines informal living spaces under Shanghai's viaducts, focusing on activities and social networks. It aims to summarise the activity characteristics and spatial patterns of informal use, identify lacking functional needs in urban spaces, and provide suggestions for urban transformation based on socio-spatial insights. The study employs participatory observation, semi-structured interviews, and archival studies to gather information. Typological morphology analysis is used to understand spatial patterns, while actor-network theory analysis reveals the transformation of social networks.
Keywords: Informal Residential Spaces, Spatial Equity, Urban Facilities, Space under viaductpublished versio
Urban parks through people’s new lens: Opportunities behind COVID-19 for public spaces’ policies in Costa Rica
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024The lockdown and restrictions during the last COVID-19 health crisis confronted the population with an unprecedented situation for urban life. Green areas, mainly large urban parks, become highly valued spaces during and even after the pandemic. This work shows the visitation patterns of users from three large urban parks within the Greater Metropolitan Area of Costa Rica (GAM). The research is based on 8575 in situ surveys carried out between January and August 2023; our team also conducted an exploratory study between 2018 and 2019 (prepandemic), which was resumed to compare some aspects before and after the pandemic. The findings allow to explore challenges in public policies to improve access and enjoyment of urban recreational spaces in Costa Rica, replicable in other parts of the world.
Keywords: COVID-19, post-pandemic, Costa Rica, public policies, urban parkspublished versio
Since when has regional planning been vague? An analysis of textual data from 7 regional master plans of Ile-de-France region between 1939 and 2019
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024This paper explores whether discursive vagueness has been used for a long time in planning documents, in the case of the Ile-de-France region. To do so, we analyzed seven main regional plans between 1939 and 2019, with the help of textometry. What emerges is a major pivotal moment in the way regional planning is formulated, between the late 1960s and the mid-1970s. Two phases can be distinguished: (1) a “before” phase in which discourse and rules are intrinsically linked, in a normative and regulatory approach; and (2) an “after” phase in which regional discourse aims above all to support the actions of the various players, largely abandoning normativity and the definition of clear rules. We interpret these results as the reflection of a major change in the planning system in France in the late 1960s, as well as an evolution in the way urban planning norms are written.
Keywords: planning discourse analysis, regional planning, Ile-de-France region, planning norms, discursive vaguenesspublished versio
Core-periphery Industrial Linkages of the Metropolitan Area from the Perspective of Enterprise Linkages: The Case of Three Cities Adjacent to Shanghai
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024To explore how cross-border industrial linkages are constructed between the centre and peripheral cities of the metropolitan area, this study takes the perspective of enterprise linkages and selects three county- level cities which are adjacent to Shanghai, as cases. First, city networks in the Shanghai metropolitan area are built using enterprise headquarter-branch linkage data; then, the descriptive statistical analysis is conducted based on enterprise questionnaires. The results show that from 2001 to 2018, enterprise linkages between Shanghai and its surrounding county-level cities increased significantly. The market forces in the industrial linkages between the three cities and Shanghai have somewhat transcended administrative barriers, which is the result of enterprises' 'voting with their feet'. The key reason why enterprises are located in these three cities is that they are close to Shanghai for access to productive services, technology, labour, information and other resources while enjoying the lower rent and preferential policies of the local industrial parks.
Keywords: City Network, Metropolitan Area, Peripheral Cities, Cross-border, Industrial Linkagepublished versio
Social capital among public housing residents: A comparative study between mixed-income communities and independent public housing complexes
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024This study aims to examine whether there is a difference in social capital among public housing residents in mixed-income communities compared to those in independent public housing complexes. This study utilizes data from the 2021 Seoul Public Housing Residents Panel Study and employs logistic regression analyses. The empirical analysis shows that public housing residents living in mixed-income communities (i.e., social-mix housing complexes and buy-to-rent public housing) exhibit greater social capital compared to those living in independent public housing complexes. This finding suggests that living in mixed-income communities has an effect on enhancing social capital among public housing residents and thus helps alleviate problems associated with public housing.
Keywords: public housing, social capital, social exclusionpublished versio
Response to urban waterlogging control under different topographic conditions
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024In recent years, the acceleration of urbanization and the occurrence of intense rainfall have led to urban waterlogging, resulting in property damage and threats to human life. The development of flood resilient infrastructure systems is therefore crucial. However, achieving this goal can be challenging in high-density urban areas due to land resource constraints. This study proposes a framework based on local human wisdom that can withstand, absorb and recover from floods in a timely manner to enhance flood resilience in the urban design process. In this study, we analyzed the hydrological characteristics of Zhengzhou City and constructed a rainfall and flood security pattern using GIS and hydrological models. Corresponding bluegreen solutions were determined for different topographic conditions. Finally, a macro-scale rainfall and flood mitigation program was designed and its effectiveness was evaluated using the Storm Water Management Model (SWMM). The results show that the Blue-Green program created 40,000 cubic meters of rainwater storage, resulting in significant economic benefits for the community. This approach can improve the flood resilience of inland cities, particularly in response to heavy rainfall and river flooding.
Keywords：urban waterlogging; topographic conditions; flood resilience; Blue-Green solutions; SWMMpublished versio
How Urban Morphology Affects Wind-Heat Environment: An Example in Beijing from Ancient Cities to Modern Cities
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024The urban wind-heat environment is a critical component affecting residents' health. This research investigates the impact of urban morphology on the heat and wind environment, focusing on three distinct residential blocks in Beijing's Nanluoguxiang Historic District. The three neighborhoods represent ancient, modern, and a mix of historical and modern urban forms. The ENVI-met was utilized to simulate wind speeds and temperatures for ancient times (1880) and modern times (2023). The results reveal that traditional urban forms with compact buildings and courtyards create more moderate wind and heat conditions. Modern urban forms with high-rise buildings and open spaces result in higher wind speeds and temperatures. The findings highlight the importance of preserving traditional urban layouts for comfortable microclimates.
Keywords: Urban microclimate, Urban design, Historic district, Numerical simulation, Chinapublished versio
The Impact of Online Social Activities on Public Spaces in the Digital era - A Case Study of Guochuang Park in Nanjing
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024In the digital era, public spaces are not only significant venues for daily recreational experiences in the physical world but also the focus of online social platforms. This study, using Guochuang Park in Nanjing, China, as a case study, to explore how online social activities influence the production of virtual spaces on social media platforms and the vitality and landscape of physical public spaces. The research indicates that users on the platform establish new social relationships and virtual spaces through online social activities. Additionally, platform activities can inject vitality into physical spaces but may also lead to some social and spatial issues. Consequently, this study advocates for urban planning to accommodate digital activities while preserving the significance of physical spaces.
Keywords: Social Media Platform, Online Social Activities, Public Space Vitality, Production of Space, Local Culturepublished versio
Prototyping Future Scenarios For Urban Planning Through The Production Of Virtual Reality Scenes
No full textGame changer? Planning for just and sustainable urban regions, Paris, 8-12th July 2024Designing 3D urban scenes for Virtual Reality (VR) offers the opportunity to transfer future scenario narratives to multiple publics involved in urban planning. Nevertheless, there is a current lack of conceptual frameworks to produce VR environments out of future scenarios. This research explores how scenarios might be enhanced and communicated through VR narrative environments. It elaborates and test the Scenarios-to-Scenes’ framework, encompassing three steps: (i) generation of future stories; (ii) real/virtual places; and (iii) VR experiences. The framework was tested with urban planners, academics, and media communication experts in two collaborative workshop settings. This process illustrated the frameworks’ capacity to enable the expansion of scenario contents out of diverse participants’ interpretations and to transfer key narrative and design elements for the VR scenes.
Keywords: scenario prototyping, Virtual Reality, narrative environments, 3D urban scenespublished versio