scholarly journals The Relationship between Urban Population Density Distribution and Land Use in Guangzhou, China: A Spatial Spillover Perspective

2021 ◽  
Vol 18 (22) ◽  
pp. 12160
Author(s):  
Yisheng Peng ◽  
Jiahui Liu ◽  
Tianyao Zhang ◽  
Xiangyang Li
Keyword(s):  
Land Use ◽  
Population Density ◽  
Spatial Structure ◽  
Density Distribution ◽  
Rapid Growth ◽  
Urban Population ◽  
Spillover Effects ◽  
Urban Spatial Structure ◽  
Direct Effects ◽  
Spatial Spillover

Urban population density distribution contributes towards a deeper understanding of peoples’ activities patterns and urban vibrancy. The associations between the distribution of urban population density and land use are crucial to improve urban spatial structure. Despite numerous studies on population density distribution and land use, the significance of spatial dependence has attained less attention. Based on the Baidu heat map data and points of interests data in the main urban zone of Guangzhou, China, the current paper first investigated the spatial evolution and temporal distribution characteristics of urban population density and examined the spatial spillover influence of land use on it through spatial correlation analysis methods and the spatial Durbin model. The results show that the urban population density distribution is characterized by aggregation in general and varies on weekends and weekdays. The changes in population density within a day present a trend of “rapid growth-gentle decline-rapid growth-rapid decline”. Furthermore, the spatial spillover effects of land use exist and play the same important roles in population density distribution as the direct effects. Additionally, different types of land use show diverse direct effects and spatial spillover effects at various times. These findings suggest that balancing the population density distribution should consider the indirect effect from neighboring areas, which hopefully provide implications for urban planners and policy makers in utilizing the rational allocation of public resources and regarding optimization of urban spatial structure.

scholarly journals Spatial parameters for transportation: A multi-modal approach for modelling the urban spatial structure using deep learning and remote sensing

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Dorothee Stiller ◽  
Michael Wurm ◽  
Thomas Stark ◽  
Pablo D'Angelo ◽  
Karsten Stebner ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Spatial Structure ◽  
Urban Population ◽  
Population Distribution ◽  
Urban Spatial Structure ◽  
Modal Approach ◽  
3D City Model ◽  
City Model ◽  
Official Data

A significant increase in global urban population affects the efficiency of urban transportation systems. Remarkable urban growth rates are observed in developing or newly industrialized countries where researchers, planners, and authorities face scarcity of relevant official data or geo-data. In this study, we explore remote sensing and open geo-data as alternative sources to generate missing data for transportation models in urban planning and research. We propose a multi-modal approach capable of assessing three essential parameters of the urban spatial structure: buildings, land use, and intra-urban population distribution. Therefore, we first create a very high-resolution (VHR) 3D city model for estimating the building floors. Second, we add detailed land-use information retrieved from OpenStreetMap (OSM). Third, we test and evaluate five experiments to estimate population at a single building level. In our experimental set-up for the mega-city of Santiago de Chile, we find that the multi-modal approach allows generating missing data for transportation independently from official data for any area across the globe. Beyond that, we find the high-level 3D city model is the most accurate for determining population on small scales, and thus evaluate that the integration of land use is an inevitable step to obtain fine-scale intra-urban population distribution.

scholarly journals Urban Spatial Structure in Barcelona (1902–2011): Immigration, Spatial Segregation and New Centrality Governance

2020 ◽  
Author(s):  
Miquel-Àngel Garcia-López ◽  
Rosella Nicolini ◽  
José Luis Roig Sabaté
Keyword(s):  
Population Density ◽  
Spatial Structure ◽  
Density Distribution ◽  
Population Distribution ◽  
Research Question ◽  
Central Business District ◽  
Distribution Patterns ◽  
Urban Spatial Structure ◽  
The Impact ◽  
Over Time

AbstractThis paper investigates the impact of the city’s urban spatial structure in shaping population density distribution over time. This research question is relevant in Barcelona because urban population grew at a sustained pace in various decades due to intense immigration inflows. When the urban spatial structure fails to behave as the backbone of population density distribution, population distribution can suffer from polarization problems. We conduct our empirical study using an urban monocentric framework, tracking the different spatial distribution patterns of the overall population and a few selected urban communities in light of the degree of attractiveness of the central business district (CBD). To this end, we construct an original database by each district in Barcelona from 1902 to 2011 and perform an econometric analysis. Our results reveal that the urban spatial structure continued to be a crucial determinant over time for shaping the overall population distribution in Barcelona and in almost all selected communities. However, its importance fluctuated over time, bottoming out in the 1950s–1960s, and whose resurgence was mostly driven by the political initiative to create a new centrality in the urban periphery. This policy reinforced the attractiveness of the CBD, resulting in the de-facto avoidance of urban polarization.

Effects of urban spatial structure on level of excess commutes: A comparison between Seoul and Los Angeles

Urban Studies ◽  
2016 ◽  
Vol 55 (1) ◽  
pp. 195-211 ◽  
Author(s):  
Myung-Jin Jun ◽  
Simon Choi ◽  
Frank Wen ◽  
Ki-Hyun Kwon
Keyword(s):  
Land Use ◽  
Los Angeles ◽  
Spatial Structure ◽  
Minimum Time ◽  
Policy Implications ◽  
Urban Spatial Structure ◽  
Single Family ◽  
Land Use Patterns ◽  
Urban Forms ◽  
High Level

This study investigates the effects of the urban spatial structure on the excess commuting rate (ECR) by comparing commuting patterns in two cities having distinctive urban forms, Seoul, Korea and Los Angeles, California, USA. A major difference was found in that commuters working closer to employment centres, or living in single-family detached housing in LA, are likely to have lower ECR, but not in Seoul. Employment suburbanisation, strict zoning separating residence and workplace and single-family housing-dominant low-density suburbs in LA are regarded as the reasons for their lower ECRs, which, by definition, imply relatively shorter actual commute duration and/or longer minimum time. Seoul can learn a lesson from LA for employment decentralisation in order to reduce actual commute time, while land use patterns in Seoul such as high level of mixed land use and compact development can provide policy implications for LA for improving commuters’ accessibility and reducing minimum time.

scholarly journals KALIANYAR VERTICAL KAMPONG WITH BEHAVIOR ARCHITECTURE IN JAKARTA

Arsitektura ◽  
2017 ◽  
Vol 14 (1) ◽  
Author(s):  
El Yanno Suminar ◽  
Marsudi Marsudi ◽  
Kusumaningdyah Nurul Handayani
Keyword(s):  
Population Density ◽  
Spatial Structure ◽  
Urban Areas ◽  
Provincial Government ◽  
Urban Spatial Structure ◽  
Home Base ◽  
Structure Damage ◽  
New Form ◽  
On The Road ◽  
The City

<em>Vertical Kampung Kalianyar design was motivated by data and facts related to the city of Jakarta and some issue as a city that has problems of population density.</em> <em>Jakarta is not the only city that has a population density problems, almost all cities in Indonesia have similar problems against the background of the dominance of urbanization which resulted in the high number of population in urban areas. Most of the problems of population density pose problems of urban spatial structure damage caused by the emergence of slum areas or slums in urban areas some point including the city of Jakarta.</em> <em>Kampung is one of the many forms of settlement which is located in the slum area and pay attention to the spatial structure of the city badly. Kampung Kalianyar is one of the densely populated area in the city of Jakarta which has poor spatial structure. On the other hand, as the settlements, Kampung Kalianyar has its own values and character are formed from several things, one of which is a sense of togetherness with the similarity of the social level. Problem of density in Jakarta has tried to be solved by Jakarta Provincial Government with rumah susun program to accommodate flats dense settlements, but it is considered less than optimal because of the character of residents of rumah susun is not contained in it. This is the destination of Kampung Vertical Kalianyar with the basis of behavior architecture as design concept to accommodate the character of Kampung Kalianyar with methods of observation and mapping that is performed directly in Kampung Kalianyar to be applied into a new form named Kampung Vertical Kalianyar. Results from analysis through observation and mapping will be transformed into a new form as knwon as Kampung Vertical Kalianyar which is able to accommodate all the character and behavior of Kampung Kalianyar like life on the road space which has been the character and social value of Kampung Kalianyar and the units of home base enterprises in every floor level.</em>

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