scholarly journals Impacts of Built Environment on Urban Vitality: Regression Analyses of Beijing and Chengdu, China

Author(s):  
Shiwei Lu ◽  
Chaoyang Shi ◽  
Xiping Yang

The loss of urban vitality is an important problem in the development of urban central areas. Analyzing the correlation between urban built environment and urban vitality supports urban planning and design. However, current research excludes the study of how consistent built environment factors affect urban vitality of cities with different development situations. Therefore, using social media check-in data, this paper measures neighborhood vibrancy in urban central areas in Beijing and Chengdu, China. Four levels of spatial information were used to measure the built environment: regulatory planning management unit (RPMU), land use, road network, and building. Regression model is used to quantify the correlation between urban vitality and the built environment of these two cities. The study found a strong correlation between built environment factors and urban vitality. Among the built environment factors, points of interest (POI) diversity and public transport accessibility indicators were strongly positively correlated with neighborhood vibrancy. However, the density indicators had totally different effects on urban vitality of cities with different development situations, which is excluded in existing studies. This research strengthens the practical understanding of the compact city concept, and can support the design and planning of urban built environment.

Author(s):  
J.H.M. Tah ◽  
A.H. Oti ◽  
F.H. Abanda

AbstractElements that constitute the built environment are vast and so are the independent systems developed to model its various aspects. Many of these systems have been developed under various assumptions and approaches to execute functions that are distinct, complementary or sometimes similar. Furthermore, these systems are ever increasing in number and often assume similar nomenclatures and acronyms, thereby exacerbating the challenges of understanding their peculiar functions, definitions and differences. The current societal demand to improve sustainability performance through collaboration as well as whole-system and through-life thinking is driving the need to integrate independent systems associated with different aspects and scales of the built environment to deliver smart solutions and services that improve the well-being of citizens. The contemporary object-oriented digitization of real-world elements appears to provide a leeway for amalgamating the modelling systems of various domains in the built environment which we termed as built environment information modelling (BeIM). These domains include architecture, engineering, construction as well as urban planning and design. Applications such as building information modelling, geographic information systems and 3D city modelling systems are now being integrated for city modelling purposes. The various works directed at integrating these systems are examined, revealing that current research efforts on integration fall into three categories: (1) data/file conversion systems, (2) semantic mapping systems and (3) the hybrid of both. The review outcome suggests that good knowledge of these domains and how their respective systems operate is vital to pursuing holistic systems integration in the built environment.


2021 ◽  
Author(s):  
Yuan Gao ◽  
Kun Liu ◽  
Peiling Zhou ◽  
Hongkun Xie

Abstract Background: Physical activity diversity (PAD) is an essential indicator to present the vitality of health city, and how to improve PAD from the built environment perspective is a key issue for healthy urban planning and design, especially in high-density cities; Methods: This study selected Shenzhen, China as a representative case, combined the diversity of PA participants, types and occurrence times for the comprehensive understanding of PAD, fully used multiple source data for the measurement and statistical analysis of PAD and built environments, to discover the relationships between the built environment and PAD, and to explore the different effects in clustered and sprawled high-density urban forms; Results: PAD was unevenly distributed in Shenzhen, higher in the clustered areas and lower in the sprawled ares and the effects of the built environment on PAD were significantly different between two kinds of areas; Conclusions: the built environment supports PAD by progressive effects, in which accessibility is the necessary and funda-mental condition to activate individual PAs, inclusiveness is sufficiently supports the coaction of various kind of PAs to consolidate PAD, and landscape attractiveness furtherly aggregates more PAs to achieve higher PAD. To create accessible, inclusive, and attractive built environments are crucial ways to improve the vitality of healthy city development in high-density cities.


2018 ◽  
pp. 52-61
Author(s):  
Augusta I.E. ◽  
Jerry N.O. ◽  
Justus N.O.

In recent times the concepts of smart city, compact city, resilient city, resilient design, sustainable design and sustainable city have crept into city/ environmental planning/design discourse and practice. While the meanings are not clearly understood especially as they apply to cities of a developing country like Nigeria, there seems to be a very thin divide between them. This study appraised these terms with respect to their intrinsic design principles in a bid to make the professionals and the stakeholders in our built environment aware of their implicit need for application to Nigerian cities. The methodology relied on literature review of the terms and concepts. The study drew examples from the developed world to establish that the definitions of these concepts and terms are overlapping and complimentary. The concepts are also found to be applicable to Nigerian cities in the identified circumstances therein. Although some frameworks were identified, no cook-book or methodological pathways for their application to cities generally was encountered in the literature surveyed. It is hoped that the study has exposed their implications for current and future urban planning and design paradigms in Nigeria.


Author(s):  
Vladyslav Tretiak ◽  
Viktoriia Lepetiuk

The creation of modern tourist products contributes to the attractiveness of our country in the market of tourist services. Transport accessibility is an important aspect for creating tourism products. This study considers the algorithm for determining transport accessibility for the projection of tourist travel routes, based on the use of geographic information technologies. Transport accessibility is determined by collecting and filtering data and subsequent creation of isochron maps, which show the time distance when moving a particular mode of transport along the lines of the road network from points of interest. Attractions of Ternopil region were chosen as such points of interest for tourists. The paper uses open OSM data on tourist facilities and the road network. Data preparation was performed using PostgreSQL software. When performing the study, the QGIS program was used, in which data processing was performed. Spatial analysis is performed in the spatial information processing environment GRASS GIS; data processing modules or GRASS GIS plug-ins are used. The proposed algorithm allows forming a database of tourist facilities, transport routes, to define more accurately existing tourist routes, to create new ones. As a test in the course of the study, the route of the tour of Ternopil was designed, in the construction of which an isochron map was used. Spatial analysis helps to better determine the path of the tourist tour and its duration. 


2019 ◽  
Vol 11 (5) ◽  
pp. 1336 ◽  
Author(s):  
Tian Li ◽  
Peng Jing ◽  
Linchao Li ◽  
Dazhi Sun ◽  
Wenbo Yan

Online car-hailing travel is an increasingly popular mode of urban transport. A fundamental understanding of the relationship between the urban built environment and online car-hailing travel is essential for developing the corresponding traffic strategy and addressing sustainable urban planning and design. However, the varying impact of the urban built environment on online car-hailing travel in the spatial dimension has not been sufficiently investigated. This paper aims to fill this gap by using geographically weighted regression (GWR) to check the spatial heterogeneity of the likely influence. The result shows that the GWR model is superior to the global model (OLS) from the perspective of goodness of fit. The study finds that the recreation and entertainment Point of Interest (POI) and the residential district POI are the most influential factors on night online car-hailing travel. Land-use mix is found to have a positive effect on online car-hailing travel, and online car-hailing services can be a complementary mode for public transport, especially in suburban areas.


Urban Studies ◽  
2020 ◽  
Vol 57 (16) ◽  
pp. 3402-3420 ◽  
Author(s):  
Xiaohu Zhang ◽  
Scott Melbourne ◽  
Chinmoy Sarkar ◽  
Alain Chiaradia ◽  
Chris Webster

The role of the built environment in improving public health through fostering physical activity has come under increased scrutiny in recent years. This study investigates relationships between walking activity and the configuration of green spaces in Greater London. Pedestrian activity for N = 54,910 walking trip stages is gathered through the London Travel Demand Survey (LTDS), with routes between origin and destination mapped onto the street network from the Integrated Transport Network of Ordnance Survey. Green spaces were extracted from UKMap and agglomerated to form London’s hundreds of parks. Regressions of pedestrian activity on park configuration, controlling for built environment metrics, revealed that catchments around smaller parks have more walking trips. Irregularity of park shape has the opposite effect. Park density, measured as number of parks inside a catchment, is insignificant in regression. Parks adjacent to retail areas were associated with pronounced increases in walking. The study contributes to landscape, urban management, environmental policy and urban planning and design literature. The evidence provides implications for performance-oriented policy and design decisions that configure a city’s green spaces to improve citizens’ public health through enhancing walkability.


Author(s):  
Minh-Chau Tran

Health impairments due to inactivity are related to the car-oriented urban development of recent decades, along with sedentary lifestyles. A health-maintaining environment must therefore not only reduce direct health risk factors (pathogenic concept), but also contribute to health chances that may indirectly support health (salutogenic concept). Walking has been identified as the most influenceable behavior; it is also the most environmental friendly mode of transport, social and health. From the planning view, the concept of walkability therefore aims at a built environment facilitating physical activity. It is increasingly recognized that walkability has become an important topic in the field of planning, urban design and health, since the built environment affects certain behaviors. From practice, concrete guidance is demanded as to the type of urban design features to be captured or applied to evaluate the walkability or to create active cities. The measurement of features of the built environment plays a special role in this context, but also the question of how research results can reach policies as well as planning and building practice


2021 ◽  
Vol 236 ◽  
pp. 03032
Author(s):  
Jing Hua Zhang

GIS is a spatial information system combining geography, cartography, remote sensing and computer science, which is widely used in different fields. As a computer system, GIS can input, store, query, analyze and display geographic data. In the 1980s, GIS gradually began to be applied in the field of urban planning. This kind of digital technology meets people's requirement for regional geographic environment visualization. At the same time, the development of the network has also provided help for the popularization and development of this technology, making the dissemination and sharing of data possible. Nowadays, as an important technology, GIS has been widely used in all fields of urban planning and has gradually become an indispensable part. Arcgis as GIS platform building and applications will be treated as big data analysis and data visualization as an important part of planning, implementation of the software data correlation of traditional urban planning, break traditional design and drawing mode, through the spatial analysis function to generate new information, make decisions and solve problems efficiently, and make a prediction to the development of future city. Through the introduction of Arcgis data organization structure, CAD data loading, mapping and modeling under Arcgis platform and Arcgis spatial analysis function, this paper discusses how to use Arcgis platform to realize the application of urban planning and design.


2021 ◽  
Vol 12 (4) ◽  
pp. 45-57
Author(s):  
Panagiotis Agourogiannis ◽  
◽  
Dimitris Kavroudakis1 ◽  
Marios Batsaris ◽  
◽  
...  

Finding an optimal path in a road network is a method of planning and decision-making that is mainly related to transportations and emergency response. The paper presents an algorithm for finding optimal paths in spatial networks, through the utilization of open source GIS and mathematical analysis of Networks using Graph Theory as well as using geographical proximity attributes of network nodes. The geometric and spatial information of the network as well as its relations with points of interest (POI) of the study areas located at the nodes and edges of the network, are transformed into spatial information, which by applying spatial queries in a geographical database (Postgis/Pgrouting) give query-enabled paths. The case study for the application of the algorithm and finding a route based on spatial queries is the island of Lesvos. This island combines intense topography and a complex road network with multiple geometric relationships. The area also has points of interest such as cultural, tourist and social. The final route will be a synthesis of morphological, tourist and cultural elements similar to the spatial search queries. Finally, the methodology as well as the search algorithm can be applied to any Spatial Network (transportations, environment, energy) described by its geographical features, considering all kinds of geographical issues, thus solving spatial problems and contributing to local development.


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