A Study on Population Density Changes in Urban Planning Area by Planned Urban Line

1982 ◽  
Vol 17 (0) ◽  
pp. 103-108
Author(s):  
Mitsuhiko Kawakami ◽  
Masakazu Nakatsuka
Author(s):  
А.А.Х. Аль-Джабери ◽  
A.A.H. Al'-Dzhaberi ◽  
М. Перькова ◽  
Margarita Perkova ◽  
Н. Иванькина ◽  
...  

Transit-oriented development (TOD) is a strategy of urban planning that aims to maximize the efficient use of the territory near the transport hub and facilitate the transition to sustainable development of cities and regions. The research is aimed at studying the emergence and development of TOD as part of New Urbanism concept in the history of urban planning and the most important characteristics of TOD. The typology of transit-oriented development plays an important role in urban planning. Its application simplifies the management of infrastructure projects by applying standards in planning and development, as well as ensuring consistency in various areas. In addition, support for planners, administrative staff and developers is of great importance for development, depending on such characteristics as population density, mixing of functions, ways of movement of citizens, activities, etc. The introduction of typology makes it possible to identify the territory and its users with already existing design solutions or experience for more thorough spatial planning.


2021 ◽  
Vol 19 (16) ◽  
Author(s):  
Seng Boon Lim ◽  
Jalaluddin Abdul Malek ◽  
Mohd Fadzil Abdul Rashid ◽  
Kong Yong Chee

Since the ‘Coronavirus Disease 2019’ (COVID-19) struck the world and Malaysia, the general attention of the media and leaders has been focused on the high population density areas that have high infection rates and deaths. This article aims to rethink population density in urban development policy, thus providing development for policy direction in the post-COVID-19 era in Malaysia. The available national development planning policies in Malaysia, i.e., the National Physical Plan and the National Urbanisation Policy, and scholarly articles related to the population density topic were investigated through a scoping literature review and a keyword analysis. The findings showed mixed results in terms of the relationship between dense areas causing higher rates of COVID-19 infection and death rates. This article argues that policies related to spatial urban planning should continuously advocate dense city planning in considering how to achieve economic, social, and environmental sustainability and human quality of life. To this extent, this article contributes to the densification topic in spatial urban planning policies in terms of their application in the post-COVID-19 era, which needs urgent direction and clarification.


2019 ◽  
Vol 11 (17) ◽  
pp. 4766 ◽  
Author(s):  
Hanxiong Zhu ◽  
Kexi Pan ◽  
Yong Liu ◽  
Zheng Chang ◽  
Ping Jiang ◽  
...  

In this study, we create a high-resolution (1 km x 1 km) carbon emission spatially gridded dataset in Shanghai for 2010 to 2015 to help researchers understand the spatial pattern of urban CO2 emissions and facilitate exploration of their driving forces. First, we conclude that high spatial agglomeration, CO2 emissions centralized along the river and coastline, and a structure with three circular layers are the three notable temporal–spatial characteristics of Shanghai fossil fuel CO2 emissions. Second, we find that large point sources are the leading factors that shaped the temporal–spatial characteristics of Shanghai CO2 emission distributions. The changes of CO2 emissions in each grid during 2010–2015 indicate that the energy-controlling policies of large point emission sources have had positive effects on CO2 reduction since 2012. The changes suggest that targeted policies can have a disproportionate impact on urban emissions. Third, area sources bring more uncertainties to the forecasting of carbon emissions. We use the Geographical Detector method to identify these leading factors that influence CO2 emissions emitted from area sources. We find that Shanghai’s circular layer structure, population density, and population activity intensity are the leading factors. This result implied that urban planning has a large impact on the distribution of urban CO2 emissions. At last, we find that unbalanced development within the city will lead to different leading impact factors for each circular layer. Factors such as urban development intensity, traffic land, and industrial land have stronger power to determine CO2 emissions in the areas outside the Outer Ring, while factors such as population density and population activity intensity have stronger impacts in the other two inner areas. This research demonstrates the potential utility of high-resolution carbon emission data to advance the integration of urban planning for the reduction of urban CO2 emissions and provide information for policymakers to make targeted policies across different areas within the city.


2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Haohui Chen ◽  
Yury Kryvasheyeu ◽  
Weipan Xu ◽  
Yaofu Huang ◽  
Jiayi Deng ◽  
...  

AbstractMultiple driving forces shape cities. These forces include the costs of transporting goods and people, the types of predominant local industries, and the policies that govern urban planning. Here, we examine how agglomeration and dispersion change with increasing population and population density. We study the patterns in the evolution of urban forms and analyze the differences between developed and developing countries. We analyze agglomeration across 233 European and 258 Chinese cities using nighttime luminosity data. We find a universal inverted U-shape curve for the agglomeration metric (Lasym index). Cities attain their maximum agglomeration level at an intermediate density, above which dispersion increases. Our findings may guide strategic urban planning for the timely adoption of appropriate development policies.


2020 ◽  
Vol 3 (39) ◽  
pp. 24
Author(s):  
Andrii Duben ◽  
Sofiia Bilynska ◽  
Volodymyr Babyak ◽  
Galyna Gnat

          The purpose is to study and analyze the youngest cities in Ukraine and compare them. The prerequisites for the emergence of the cities of Novoyavorivsk and Slavutych were studied. The factors that influenced the choice of construction site were identified. The nature of development and prospects for further development of cities have been determined. The features of urban development of both cities were studied. Population density analysis is conducted and age characteristics are given. The results of the comparison were statements that highlight the problems of urban planning and ways of solving them in the construction of Slavutych and Novoyavorivsk. The scope of the article's results can be architectural practice in the field of urban planning.Key words: population density, urban construction, medium storey, prefabricated structures, young city, urban planning.


2017 ◽  
Vol 46 (1) ◽  
pp. 179-200 ◽  
Author(s):  
Jung Eun Kang ◽  
D.K. Yoon ◽  
Hyun-Joo Bae

Air quality is affected by the interplay between emission sources and urban planning factors such as land use, built environment, development pattern, and transportation. Few empirical studies have been conducted to determine the influence of urban form characteristics on air quality in Korea. Thus, the purpose of this research is to examine the relationship between urban form and air pollution, focusing on ozone pollution in Korea. The characteristics of urban form include density, concentration, clustering, and land use mix. In this study, those characteristics were measured by population density, the Theil index, Moran’s I index, G-statistic values, and an entropy index using statistical methods and a geographic information system. We employed a spatial regression model to consider the spatial effects of ozone concentrations. We found that the degree of urban land use mix, clustering, and concentration of development are significantly associated with better air quality by using a spatial lag model, which was found to be the best fit for the data used in this study. However, an increase in population density was found to be associated with exacerbated ozone concentrations. Communities with higher daily temperatures, a large number of cars, and polluting facilities exhibited poor air quality, while those with a larger percentage of residential land use tended to have lower ozone pollution. These findings suggest that, to properly address concerns over air quality, mixed-land use and compact urban form need to be more seriously considered in sustainable urban planning.


2021 ◽  
Vol 4 (2) ◽  
pp. 88-97
Author(s):  
Mikhail A. Kramer ◽  
Valery N. Mikheev ◽  
Evgeny M. Trofimovich

The relevance of studying the patterns of the formation of COVOD-19 epidemics in the conditions of urban development is justified. The establishment of common mechanisms between the epidemic and urbanization is necessary to justify the population density as an urban planning regulation. An algorithm for constructing etiological groups and modeling indicators for evaluating correlation relations is proposed. Based on these statistical estimates, the choice of a hypothesis about the reliability or randomness of statistical estimates is justified. Statistical regularities of the epidemic process are tabulated for the scientific conclusion about the concretization of the urban planning routing of residents with the formation of foci of infectious risk. Models of epidemics in the space of organized territories are presented. The content of the Concept of Development and the general organization of the territory of urban and rural settlements is proposed to be based on the methodology for determining density, as an urban planning category that meets the requirements of SanPiN 3.3686-21.


2021 ◽  
Vol 32 (1) ◽  
pp. 248-259
Author(s):  
Nataliya Kuzina ◽  

Catalan architects who were members of the G.A.T.C.P.A.C. associa-tion and the Association of Architects of Catalonia (SAC) were con-cerned about social, demographic and sanitary issues. Specialists were engaged in the development of new strategies in the field of urban planning, the creation of comfortable and safe spaces that solved prob-lems associated with high population density. Catalan architects were engaged in the development of functional projects that could solve a number of fundamental problems, such as the lack of a sufficient num-ber of hospitals, schools, housing, factories, places for leisure, etc. They presented these projects in two magazines Actividad Contempora-nea and Arquitectura i Urbanisme, which are investigated in this article. In them, the architects proposed a new way of life, consonant with the ideas of the Second Republic about equality and social justice.


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