URBAN CORE AREA COOPERATION IN THE UTSUNOMIYA METROPOLITAN AREA EVALUATED BY TRIP NUMBERS

2019 ◽  
Vol 75 (5) ◽  
pp. I_519-I_526
Author(s):  
Eiji MORIMOTO ◽  
Yu SHIMOYAMA ◽  
Keigo OKANO ◽  
Mamoru TANIGUCHI
Keyword(s):  
Metropolitan Area ◽  
Core Area ◽  
Urban Core

A Study on the Planning Method of Underground Space in Urban Core District - Taking Hangzhou Eastern New City Zone as an Example

2011 ◽  
Vol 71-78 ◽  
pp. 1411-1420
Author(s):  
Cheng Zhang ◽  
Si Wei Wang
Keyword(s):  
Development Project ◽  
Design Concept ◽  
Planning Method ◽  
Core Area ◽  
Underground Space ◽  
Surrounding Area ◽  
The Core ◽  
Railway Construction ◽  
Urban Core ◽  
New City

Nowadays, Underground space exploitation is one of the directions of the main focus in the construction of Hangzhou. This paper comprehensively introduces the schematic design of the underground space exploitation of Hangzhou east station, combined with the underground space development project of the core area in Hangzhou eastern new city zone. Firstly, the background of the surrounding area is discussed to illuminate the important status of the core area of eastern new city zone in Hangzhou’s future construction. Then, the holistic design concept and construction goal of the underground space exploitation of the core area are presented, and its functions and layout are clarified focusing on the railway construction and circumjacent exploitation project of Hangzhou east station. Lastly, the executive plan about the underground space exploitation of the core area of Hangzhou eastern new city zone is expatiated comprehensively.

Comparative analysis of three NDVI resolutions in different urban typologies. The case of Granollers in the Metropolitan Area of Barcelona.

2021 ◽  
Author(s):  
Alan García-Haro ◽  
Josep Roca
Keyword(s):  
Climate Change ◽  
Metropolitan Area ◽  
Urban Studies ◽  
Rural Areas ◽  
Industrial Area ◽  
Landsat 8 ◽  
Urban Context ◽  
Urban Core ◽  
First Results ◽  
Definition Of

<p>In recent years, the use of remote sensed NDVI has become recurrent in urban studies regarding the adaptation of cities to climate change. However, due to the physical diversity within cities and the different resolution offered by the sensors, the territorial interpretation of what the NDVI values really mean becomes difficult. Where the larger the size of the cells of the image, the greater the number of elements of the built environment within it, and the more complex the interpretation becomes.</p><p>In this work, the relationship between the NDVI of three sensors with different cell resolution for the same location and date is studied. In particular, the city of Granollers in the Metropolitan Area of Barcelona is analyzed. First, the NDVI images were obtained from Landsat-8 with 30m resolution, Sentinel-2 with 10m and from the Ministry of Agriculture, Livestock, Fisheries and Food of Catalonia (DARP) with 0.125m resolution. Then, the comparison was performed with a sample of five different typologies of the territory: dense urban core, suburban, industrial, area of highway and rural.</p><p>As first results, a supervised classification of the DARP image allowed the definition of 0.30 as the precise minimum value of NDVI that indicates the actual presence of vegetation. On the other hand, the comparison indicates that, in the urban context, the larger the cell size, the presence of vegetation quality is overestimated, where the higher percentage of cells is concentrated in higher NDVI values than in those with lower resolution. However, this behavior is not appreciated in rural areas, where higher percentages of cells of different resolutions were concentrated in the same NDVI ranges.</p><p>In such a way, it is corroborated that it is in the urban context where this indicator has a greater difficulty of territorial interpretation. Statements that are analyzed in greater depth in this study, where its implications in the use of NDVI in urban studies for the adaptation of cities to climate change are discussed.</p>

A longitudinal study of changes in intra-metropolitan employment concentration in Beijing: Decentralisation, reconcentration and polycentrification

Urban Studies ◽  
2019 ◽  
Vol 57 (4) ◽  
pp. 748-765
Author(s):  
Tieshan Sun
Keyword(s):  
Metropolitan Area ◽  
Census Data ◽  
Urban Structure ◽  
Spatial Trend ◽  
Urban Core ◽  
Spatial Changes ◽  
Economic Census ◽  
Service Jobs ◽  
Beijing Metropolitan Area ◽  
Longitudinal Dataset

This article explores the spatial trend of intra-metropolitan employment concentration in the Beijing metropolitan area from 2004 to 2013. We use multiple-year economic census data and construct a unique longitudinal dataset of employment at the subdistrict level, applying the locally weighted regression method to identify employment centres in Beijing. The results show that jobs continued to decentralise from the urban core to the suburbs in Beijing over the studied period; however, different from the common trajectory of Western metropolitan spatial evolution, decentralised jobs tended to be more concentrated in subcentres and the polycentric urban structure prevailed in Beijing. Polycentricity strengthened in Beijing from 2004 to 2008, but job dispersion increased at the expense of polycentricity during 2008–2013. However, job dispersion did not follow an unstructured model; instead, subcentres played an increasingly important role in structuring the dispersed jobs. Job dispersion in Beijing has been more associated with the scatteration of service jobs, while manufacturing jobs tended to be more concentrated in subcentres, which contributed to the polycentric development of the capital. We also observe the persistence in the location of employment centres in Beijing over the studied period, as well as substantial spatial changes in the boundaries of employment centres, which suggests that the employment concentrations within the metropolitan area are persistent but not static.

scholarly journals Urban-Rural Relationships in Feeding Metropolis: A Case Study in Ljubljana Metropolitan Area

2014 ◽  
Vol 11 ◽  
pp. 259-264 ◽  
Author(s):  
Guido Sali ◽  
Stefano Corsi ◽  
Federica Monaco ◽  
Chiara Mazzocchi ◽  
Matjaž Glavan ◽  
...  
Keyword(s):  
Urban Development ◽  
Metropolitan Area ◽  
Rural Areas ◽  
Metropolitan Areas ◽  
Production Potential ◽  
Urban Centre ◽  
Urban Core ◽  
Urban Rural ◽  
Definition Of

Metropolitan areas are characterized by the coexistence of a urban core insisting on natural resources of surrounding rural areas, strictly linked to the former. Inevitably, increasing urbanization and its consequences affect the model of urban development, which then needs to deal with the challenge of sustainability, also aiming to reduce pressures on resources and on supplying capacities of rural agricultural systems in providing food to urban zones, traditionally lacking. It then becomes important to deepen the possibility for the dense core to be supplied through proximity agriculture, able to recreate and improve synergic connections between urban and rural spheres. The paper aims to study the relationships among them for feeding the metropolis, adopting a methodology for the spatial definition of urban centre in metropolitan area and the assessment of its food balance, in order to identify the potentialities of local and proximity agriculture and provide a first evaluation for the possibility to match urban development and production potential. Identified tools are applied to Ljubljana metropolitan area.

scholarly journals Spatiotemporal Changes in Ecosystem Services along a Urban-Rural-Natural Gradient: A Case Study of Xi’an, China

2020 ◽  
Vol 12 (3) ◽  
pp. 1133 ◽  
Author(s):  
Xiaoxuan Li ◽  
Hongjuan Zhang ◽  
Zhicheng Zhang ◽  
Juan Feng ◽  
Kang Liu ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Urban Areas ◽  
Hot Spot ◽  
Well Being ◽  
Core Area ◽  
Conservation Area ◽  
Urban Core ◽  
Ecological Conservation ◽  
Extended Area ◽  
The Impact

Urban areas are the areas that are most strongly affected by human activities, which presents many challenges to the ecosystem and human well-being. Ecosystem services (ES) are a comprehensive indicator to measure the ecological effects of urbanization. To effectively identify and evaluate the impact of urbanization on ES, the spatial-temporal pattern of ES should be considered. According to the level of urbanization, Xi’an city is divided into four regions: the urban core area, the urban extended area, the rural area, and the ecological conservation area, then, five comprehensive ecosystem services (CES) are evaluated by In VEST model. The results showed the following: (1) There is an obvious spatial heterogeneity in the distribution of ES. The ecological conservation area is the hot spot of ES supply, and the low value is mostly distributed in the urban core area. (2) The CES in the urban extended area that has undergone the greatest change between 2000 and 2015, and the rates of change in the ecological conservation area are the smallest. (3) There is a significant correlation between urbanization and ES, and the correction between landscape urbanization and ES is the most significant. (4) The agglomeration relationship between urbanization and ES in different regions is not consistent. Regional division provides a new way to understand the interaction between urbanization and ES in time and space, so as to provide better guidance for policy makers in formulating sustainable development policies to alleviate the loss of ES caused by the process of urbanization.

scholarly journals River corridor ventilation analysis and riverfront planning strategy in Tianjin’s urban core area

2021 ◽  
Vol 237 ◽  
pp. 04022
Author(s):  
Tong Ma ◽  
Tian Chen
Keyword(s):  
Core Area ◽  
Frontal Area ◽  
Common Belief ◽  
Development Mode ◽  
Area Index ◽  
Planning Strategy ◽  
Urban Core ◽  
Planning Methods ◽  
River Corridors ◽  
River Corridor

River corridors are important potential wind path in cities. This paper took the river in the core area of Tianjin as the research object. By using two ventilation indicators as frontal area index (FAI) and frontal area density (FAD), the overall ventilation and pedestrian level ventilation of riverfront area were quantitatively analyzed. The result showed that contrary to common belief, due to the high FAI of the riverfront area, river corridor in Tianjin’s core area did not play the role of wind path but obstructed the wind flow. Also the low FAD indicator of the riverfront area lead to a better outdoor comfort in summer but worse comfort in winter. After verified the correlation between planning indicators (floor area ratio, building height and site coverage) and ventilation indicators, a cluster pattern urban riverfront development mode was proposed. Also a ventilation corridor planning methods based on the river direction and dominant wind direction was suggested. These planning strategy will be more conductive to the wind path and cooling island potential of the river corridors in urban core area.

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