scholarly journals Urban Morphology Promotes Urban Vibrancy from the Spatiotemporal and Synergetic Perspectives: A Case Study Using Multisource Data in Shenzhen, China

2020 ◽  
Vol 12 (12) ◽  
pp. 4829
Author(s):  
Sijia Li ◽  
Chao Wu ◽  
Yu Lin ◽  
Zhengyang Li ◽  
Qingyun Du
Keyword(s):  
Urban Development ◽  
City Planning ◽  
Development Planning ◽  
Urban Morphology ◽  
Two Dimensions ◽  
Sustainable Urban Development ◽  
Local Conditions ◽  
Large Cities ◽  
Point Of Interest ◽  
The Status

Urban vibrancy is the key and the foundation for monitoring the status of urban spatial development, assisting in data-driven urban development planning and realizing sustainable urban development. Based on a dataset of multisource geographical big data, the understanding and analysis of urban vibrancy can be deepened with fine granularity. The working framework in this study focuses on the comprehensive perspective of urban morphology, which is decomposed into two dimensions (formality and functionality) and four elements (road, block, building, point of interest). The geographically and temporally weighted regression model was first applied to determine the spatiotemporal effect of the morphological metrics on vibrancy, and then, the geographical detector was employed from the perspective of spatially stratified heterogeneity to reveal the synergetic impacts. The following findings were revealed. (1) Dense street networks, small and medium-sized blocks, and the diversification and intensification of building and land use are beneficial to urban vibrancy. (2) Under the premise of adapting to local conditions, urban spaces combine multiple morphological metrics for the accomplishment of a full-region and all-time vibrancy. (3) The mixture of urban functions is worthy of attention for vibrancy growth because of its extraordinary synergy, not its capacity. Morphological metrics serve to foster and prolong urban vibrancy, adapt to urban sustainability, and contend against inefficient, disorderly urban sprawl. These findings provide significant implications for urban planners/designers and policymakers to optimize urban morphology, improve the vibrancy in large cities, and implement high-quality city planning.

scholarly journals Urban Development Trends In The Latgale Region At The Beginning Of The 21st Century

2015 ◽  
Vol 1 ◽  
pp. 130
Author(s):  
Ivars Matisovs
Keyword(s):  
Urban Development ◽  
Urban Environment ◽  
21St Century ◽  
Field Studies ◽  
Development Planning ◽  
Sustainable Urban Development ◽  
Development Projects ◽  
Development Trends ◽  
Environment Quality ◽  
The Status

The paper provides a comprehensive analysis of urban development trends in the Latgale region, observed at the beginning of the 21st century and to a large extent also outlines the direction of future development. The paper is based on the evaluation of spatial development planning documents,the analysis of the available statistical data and the review of the urban development projects subject to implementation, supplemented by some results of field studies on the urban environment quality. Though the urban environment and partly also the landscape quality has been improved during the last period, as well as in many areas with support of the EU programmes major urban environment development projects are being implemented, however the economic growth is stalling, depopulation processes are not contained, and the regional urban development index is expressly negative. In the course of the administrative and territorial reform the status of the majority of towns and cities of the Latgale region has significantly changed, and sustainable urban development in the region is still under real threat.

scholarly journals An Optimized Approach for Extracting Urban Land Based on Log-Transformed DMSP-OLS Nighttime Light, NDVI, and NDWI

2021 ◽  
Vol 13 (4) ◽  
pp. 766
Author(s):  
Yuanmao Zheng ◽  
Qiang Zhou ◽  
Yuanrong He ◽  
Cuiping Wang ◽  
Xiaorong Wang ◽  
...  
Keyword(s):  
Urban Development ◽  
Urban Areas ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Development Planning ◽  
Urban Land ◽  
Sustainable Urban Development ◽  
Land Use Patterns ◽  
Water Index ◽  
Nighttime Light

Quantitative and accurate urban land information on regional and global scales is urgently required for studying socioeconomic and eco-environmental problems. The spatial distribution of urban land is a significant part of urban development planning, which is vital for optimizing land use patterns and promoting sustainable urban development. Composite nighttime light (NTL) data from the Defense Meteorological Program Operational Line-Scan System (DMSP-OLS) have been proven to be effective for extracting urban land. However, the saturation and blooming within the DMSP-OLS NTL hinder its capacity to provide accurate urban information. This paper proposes an optimized approach that combines NTL with multiple index data to overcome the limitations of extracting urban land based only on NTL data. We combined three sources of data, the DMSP-OLS, the normalized difference vegetation index (NDVI), and the normalized difference water index (NDWI), to establish a novel approach called the vegetation–water-adjusted NTL urban index (VWANUI), which is used to rapidly extract urban land areas on regional and global scales. The results show that the proposed approach reduces the saturation of DMSP-OLS and essentially eliminates blooming effects. Next, we developed regression models based on the normalized DMSP-OLS, the human settlement index (HSI), the vegetation-adjusted NTL urban index (VANUI), and the VWANUI to analyze and estimate urban land areas. The results show that the VWANUI regression model provides the highest performance of all the models tested. To summarize, the VWANUI reduces saturation and blooming, and improves the accuracy with which urban areas are extracted, thereby providing valuable support and decision-making references for designing sustainable urban development.

scholarly journals Evaluating the urban form of a mountainous city from the perspective of compactness characteristics: Kigali city, Rwanda

2019 ◽  
Author(s):  
Ivan Rwampungu ◽  
◽  
Nobuo Mishima ◽  
◽  
Keyword(s):  
Urban Form ◽  
Spatial Organization ◽  
City Planning ◽  
Land Use Changes ◽  
Two Dimensions ◽  
Capital City ◽  
Sustainable Urban Development ◽  
Authority Control ◽  
Sustainable Planning ◽  
The City

A better understanding of the composition and form of cities, and how land use changes throughout a city, can provide helpful insights for city sustainable planning. Many sustainable city models have been studied and the compact city concept has been adopted as one the sustainable model in city planning policies of many countries. However, due to dynamic nature of the city structures around the world, there exists a limited consensus on parameters and dimensions to measure urban compactness especially in the cities developed in unplanned manners. This study aims at analyzing and understanding the urban form in Kigali, the capital city of Rwanda. Two dimensions of spatial organization and spatial distribution of population were measured using GIS functions to objectively evaluate physical compactness. Findings reflected trend of decrease in compact form with absence of sustainable concepts due to lack of regularity authority control and haphazard development. Suggestive measures were provided for future consideration in sustainable urban development of the city.

scholarly journals GIS-technologies in the specific features of development planning in large cities of Europe in the XVIII - XIX centuries

2021 ◽  
Vol 2 (92) ◽  
pp. 98
Author(s):  
Vladislav Kazachenko
Keyword(s):  
Urban Development ◽  
Satellite Image ◽  
Development Planning ◽  
Large Cities ◽  
Gis Technologies ◽  
Financial Investments ◽  
Historical Architecture ◽  
Ancient Times ◽  
Architectural Planning ◽  
Use Of Knowledge

Аbstract. Problem. The article reveals the use of knowledge of astronomy in engineering calculations when planning urban development in the 18th - 19th centuries. Goal A solar calculator from the SunCalc program was used in the study. It was proved by the example of the ancient buildings of St. Peter's Square in the Vatican that architects in ancient times madeaccurate calculations for the planning of streets and cities and used astronomical knowledge Thanks to the use of modern GIS technologies, it has become possible in our time to superimpose the existing buildings on a satellite image of the territory of the ancient buildings and see that the line of St. Peter's Square completely coincides with the line of the sun, directed at the vernal equinox - March 22. Methodology. The building line of the square - the beginning and end of the buildings, consisting ofcolumns, coincides with the line of the sun's rays directed to the days of the summer and winter solstices. This suggests that the architectural planning of the development of ancient cities was carried out with calculations according to the laws ofthe ecliptic, with knowledge of physical and mathematical calculations and all streets and arched vaults were aimed at the passage of sunlight on certain days in certain places, as if illuminating buildings and squares. Modern urban developmentplanning should be carried out using GIS technologies and mathematical modeling. Results Modern urban development must take into account historical architecture, areas of historical events and protected areas. The stylistics in the design must berepeated and the development planning must be carried out in a single architectural ensemble of the city. This will attract tourists and financial investments to us. 

scholarly journals Linking Sustainable Urban Development With Town Planning Through Proximity Trade

2021 ◽  
Vol 10 (4) ◽  
pp. 121
Author(s):  
Jose Manuel Diaz-Sarachaga
Keyword(s):  
Urban Development ◽  
Urban Areas ◽  
Urban Policy ◽  
Urban Morphology ◽  
Town Planning ◽  
Sustainable Urban Development ◽  
Sustainable Mobility ◽  
Urban Fabric ◽  
Commercial Activities ◽  
Motorized Vehicles

Losses from commercial activities reflect the decline and deterioration of the downtown, the urban fabric and the social structure of the cities. The dependence on motorized vehicles has grown significantly among consumers who must move to meet their daily needs. Such a process marginalizes vulnerable populations by promoting urban lifestyles less sustainable. Proximity trade is therefore becoming increasingly important for those groups because it encourages dynamism among distinct urban areas and reduces the use of vehicles. This urban model addresses a relevant issue as universal accessibility that allows residents to enjoy an available city and move freely without encountering obstacles. The major role played by trade in the creation of wealth and urban fabric demands the integration of commercial areas provisions into urban policy guidelines. In this context, the study aims at developing a set of indicators that link proximity trade with the promotion of sustainable urban development and the model of compact city to be included in Spanish urban planning guidelines. Sixteen indicators were thus formulated around five areas of action: urban morphology, urban complexity, sustainable mobility, urban metabolism and social cohesion.

Sustainable Urban Development

2018 ◽  
pp. 30-40
Author(s):  
Nicola Boccella ◽  
Irene Salerno
Keyword(s):  
Urban Development ◽  
Urban Design ◽  
Rapid Growth ◽  
Development Planning ◽  
Local Communities ◽  
Sustainable Urban Development ◽  
The World ◽  
University Of Rome ◽  
The City

The concept of participation in sustainable urban development practices is actually more and more popular in Europe and all over the world. In parallel, there is a rapid growth of urban design and planning projects including local communities in urban development planning activities. According to such concepts, this chapter, starting from the description of the results of field and desk researches carried out by ‘La Sapienza' University of Rome and related to communities involvement strategies currently available in Europe, describes and analyses a case study based on a concrete application of theoretical and methodological approaches, and two more cases of possible application of an integrated methodology. All the projects described concern the city of Rome.

Applications of Crowdsourcing in Sustainable Urban Development Planning in Developing Countries

2018 ◽  
pp. 77-96 ◽  
Author(s):  
Ismaila Rimi Abubakar
Keyword(s):  
Developing Countries ◽  
Urban Development ◽  
Urban Space ◽  
Planning Process ◽  
Development Planning ◽  
Sustainable Urban Development ◽  
Future Research ◽  
Social Actors ◽  
Key Issues ◽  
Future Research Directions

To efficiently manage growth and changes arising from rapidly increasing population and urbanization trends, developing countries need to employ appropriate tools to analyze the key issues involved. Globally, crowdsourcing is increasingly being applied to facilitate sustainable urban development (SUD) planning process. Crowdsourcing has already proved capable of generating new models for urban planning and governance that source and mobilize diverse social actors working toward sustainable and innovation-oriented urban space. However, few studies have explored crowdsourcing applications in SUD planning in developing countries. Therefore, based on desktop study, this chapter examines applications of crowdsourcing in SUD planning in developing countries. The chapter reviews the conceptual and historical foundation of crowdsourcing, and highlights some exemplary applications of crowdsourcing in SUD planning worldwide. It then discusses the challenges and potentials of crowdsourcing as a tool in planning for SUD in developing countries and concludes with future research directions.

scholarly journals Das Handwerk im Bauplanungs- und Umweltrecht

2019 ◽  
Author(s):  
Willy Spannowsky
Keyword(s):  
Urban Planning ◽  
Urban Development ◽  
Development Planning ◽  
The Other ◽  
Sustainable Urban Development ◽  
Planning Law ◽  
Legal Policy ◽  
Framework Conditions ◽  
Space Requirements ◽  
Further Development

Altered structures in manual trades have led to different space requirements for the various forms of tradesman’s businesses. On the other hand, changed site-related environmental and urban planning requirements have resulted in restrictions to the development of sites for tradesman’s enterprises. In this book, the author’s analysis of the changed framework conditions makes clear that, in the interest of sustainable urban development, it is necessary to ensure location development for tradesman’s businesses as a strategic provision for the future. Therefore, not only does urban planning have to be geared towards it, but so does the development of the urban planning law. The findings of this monograph will be of interest to all those involved in urban development planning and the development of manual trades and, ultimately, in terms of legal policy, are important for the further development of urban planning law.

scholarly journals The renaissance of tramways and urban redevelopment in France

2017 ◽  
Vol 21 (1) ◽  
pp. 5-18 ◽  
Author(s):  
Yves Boquet
Keyword(s):  
Urban Development ◽  
Public Transport ◽  
Traffic Congestion ◽  
Fossil Fuel ◽  
Development Planning ◽  
Sustainable Urban Development ◽  
Light Rail ◽  
Transit Oriented Development ◽  
Set Up ◽  
Technical Solutions

Abstract Tramways have made a remarkable comeback in France since the 1980s. An organization of public transport based on the decentralized administration system set up in the early 1980s has allowed local urban authorities to make their own choices to develop public transport networks in the context of automobile domination. As in many other countries, worries about fossil fuel dependency and demands concerning sustainable urban development appear as strong elements in favour of urban light rail. However, in France, tramways are not just technical solutions for traffic congestion, they have also become a symbol of a cultural mutation in urban development planning. Coupled with a national political push for a more inclusive city in social terms, tramways are the backbone of contemporary urban policies, in a French version of transit-oriented development (TOD), especially for mid-size cities.

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