Underground Space Development and Urban Safety

2012 ◽  
Vol 209-211 ◽  
pp. 516-520
Author(s):  
Shu Ran Lv
Keyword(s):  
High Speed ◽  
Rapid Development ◽  
Land Resource ◽  
Underground Space ◽  
Urban Problem ◽  
Urban Safety ◽  
Full Discussion ◽  
Role Based ◽  
The Relationship ◽  
The City

With the rapid development of China economy, China urbanization process is entering high–speed development period. At the same time, the development of underground space is also entering the high-speed period. The development of underground space and the safety of the city is inseparable, the development of underground space is playing an important role in the settlement of the current urban safety, the constraints of the urban land resource, the narrow of the building space, the traffic jams, the worsening environmental pollution and city disaster prevention ability inadequacy, plays a more and more important role. Based on the analysis of urban safety that the city is facing, this paper makes full discussion of the relationship between the development of underground space and urban safety as well as the urban problem-solving approach.

scholarly journals An Empirical Analysis of Energy Consumption, FDI and High Quality Development Based on Time Series Data of Zhejiang Province

2020 ◽  
Vol 17 (9) ◽  
pp. 3321
Author(s):  
Shaolong Zeng ◽  
Yiqun Liu ◽  
Junjie Ding ◽  
Danlu Xu
Keyword(s):  
Time Series ◽  
Economic Development ◽  
Energy Consumption ◽  
Open Economy ◽  
High Speed ◽  
Time Series Data ◽  
Rapid Development ◽  
Series Data ◽  
High Quality ◽  
The Relationship

This paper aims to identify the relationship among energy consumption, FDI, and economic development in China from 1993 to 2017, taking Zhejiang as an example. FDI is the main factor of the rapid development of Zhejiang’s open economy, which promotes the development of the economy, but also leads to the growth in energy consumption. Based on the time series data of energy consumption, FDI inflow, and GDP in Zhejiang from 1993 to 2017, we choose the vector auto-regression (VAR) model and try to identify the relationship among energy consumption, FDI, and economic development. The results indicate that there is a long-run equilibrium relationship among them. The FDI inflow promotes energy consumption, and the energy consumption promotes FDI inflow in turn. FDI promotes economic growth indirectly through energy consumption. Therefore, improving the quality of FDI and energy efficiency has become an inevitable choice to achieve the transition of Zhejiang’s economy from high speed growth to high quality growth.

scholarly journals Industrial uniformity or industrial diversification: the impact of hsr on the regional economy

2020 ◽  
Vol 6 (3) ◽  
pp. 23-30
Author(s):  
Alexander L. Kamenkov
Keyword(s):  
State Government ◽  
High Speed ◽  
Main Task ◽  
High Speed Rail ◽  
Industrial Diversification ◽  
Industrial Specialization ◽  
Points Of View ◽  
The Impact ◽  
The Relationship ◽  
The City

Aim: Identification of the degree of influence of high-speed lines on industrial specialization. Methods: This paper examines the relationship between high-speed rail and the agglomeration economy. A literature review of the most popular points of view on the economy of agglomerations is carried out. The main task is to answer whether HSR contributes to the development of industrial uniformity or industrial diversification. The work will show a model for calculating the specialization index, and also, assess the degree of influence of distance from the high-speed rail on the specialization of the city. Results: Three options for the location of cities and the industrial specialization of these cities were identified: right next to the HSR diversified; at a distance of 270 km from HSR uniform; at a distance of more than 500 km from HSR diversified. Conclusion: It is revealed that the single dominant industry receives the greatest benefit from agglomerations. Also-in this paper, the possibility of more effective orientation of the private sector by the state government is justified.

scholarly journals GREENING OF LVIV: A REVIEW THROUGH HISTORY

2021 ◽  
Vol 3 (1) ◽  
pp. 81-90
Author(s):  
Makiichuk L ◽  
Keyword(s):  
Rapid Development ◽  
Historical Analysis ◽  
Residential Areas ◽  
Green Areas ◽  
Concentric Circles ◽  
Xix Century ◽  
Quantitative Indicators ◽  
The Relationship ◽  
The City ◽  
Qualitative Characteristics

The article highlights and analyzes the main periods of development of urban green areas of Lviv from the founding of the princely city to the present day. Methods of historical analysis and analysis of the scientific literature were used in the study to find the relationship between historical conditions and periods of development of green areas. Statistical analysis was also used to study statistics on green space, city area and population. Several main periods were identified during the study. The first period - the twelfth century. until 1777 – a period of rapid development of the "city in the walls" and changes in the surrounding lands. The first attempts at organized landscaping in the courtyards of monasteries and nearby cemeteries took place at this time. In the following period from 1777. by 1948, the decision to dismantle the walls and create the first planned landscaping of the city was made. Also, large parks near the estates of noble families were built. Since 1948 after 1917 the ecological situation in the city has deteriorated due to the active development of technology and industry, and the construction of residential areas with gardens has revived. Holding a National Exhibition in the 90s of the XIX century. was the impetus for the creation of new green areas. In the period of 1918 until 1939 the pace of landscaping of the city decreased, landscaping was organized mainly in the central part. At this time, Drexler's idea of expanding Lviv was realized, and the idea of forming a structure of landscaping in the form of three concentric circles is still relevant. From 1939 to 1980, the city's landscaping was actively and gradually developed, new parks were created, and suburban green areas for recreation were developed. The most modern stage – from gaining Independence to the present day – is the period when green areas need planned improvement and protection. The study confirmed the view that green areas are closely linked to historical events, such as wars or the active development of certain areas of the economy. Also, only quantitative indicators of green areas do not fully inform about the filling of the city with green spaces at different times, so it is necessary to take into account the qualitative characteristics.

Design and Develop City Space Database Based on the Network CASE Tool

2012 ◽  
Vol 518-523 ◽  
pp. 5868-5872
Author(s):  
Hong Liang ◽  
Zhen Feng Suo ◽  
Ying Han
Keyword(s):  
Data Model ◽  
Spatial Databases ◽  
Underground Space ◽  
Use Case ◽  
Case Tool ◽  
Database Model ◽  
City Space ◽  
The Relationship ◽  
The City ◽  
Ideal Method

Geodatabase data model is the spatial database model of the topological structure, which can accurately describe the underground pipeline space information in city. How to use Case tool and UML to expand Geodatabase model to establish a meet the demand of underground space database of kunming drainage pipeline,through analyzing the characteristics of the structure of kunming underground pipe. It is practiced that using Case tools and UML to extend the data model, not only to graphically design the database model with the graphic, but also clearly express the relationship between the various elements, which is an ideal method that establishing the city pipeline spatial databases.

Study on Civil Engineering with the Comparison and Inspiration of Domestic and Foreign City Underground Space Development

2013 ◽  
Vol 859 ◽  
pp. 213-217
Author(s):  
Xiao Li Dong ◽  
Rui Hua Wang ◽  
Ze Xun Yuan
Keyword(s):  
Regional Planning ◽  
Underground Structure ◽  
Ecological Environment ◽  
Land Resource ◽  
Underground Space ◽  
Underground Structures ◽  
City Population ◽  
Development And Utilization ◽  
City Construction ◽  
The City

With the development of city, city population, regional planning and city ecological environment are facing with more and more tremendous pressure, so the development and utilization of city underground space has become common concern. In recent years, underground structures have been widely applied in the fields of city construction, transportation, defense engineering, water conservancy project etc. Many countries in the world have been the development and utilization of underground space as an important way to intensively implement the land resource and sustainable development of the city. In our country, there is still very great potential of underground space development and utilization of underground structure.

scholarly journals Is the High-Speed Rail Opening Environmentally Friendly? Taking the Difference-in-Differences Test in Jiangsu, China

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Shijin Wang ◽  
Huiying Zhou ◽  
Guihong Hua
Keyword(s):  
Air Pollution ◽  
High Speed ◽  
Rapid Development ◽  
Central City ◽  
Control Variable ◽  
Difference In Differences ◽  
High Speed Rail ◽  
The Difference ◽  
The Impact ◽  
The Relationship

In view of rapid development of high-speed rail, the relationship between high-speed rail and air pollution needs to be tested and determined. Most research studies focused on the impact of high-speed rail on environmental pollution and just viewed high-speed rail as a control variable, which lacked a direct study on this relationship. Also, these rarely involved regional research, which is short of pertinence and insufficient understanding of regional issues. Therefore, based on the difference-in-differences (DID) model which is a natural experiment evaluation method, this study examined the impact of high-speed rail opening on air pollution by using the panel data of Jiangsu province, China, from the year of 2000 to 2017. The empirical results showed that the opening of Jiangsu high-speed rail, which increases cities’ good day significantly by 21.5%, has inhibitory effect on air pollution. Among control variables, there is no inverted “U” relationship between the economic development level and air pollution. Personal income and urbanization significantly improve air pollution, whereas foreign direct investment exacerbates it. And the results are still valid after robustness tests, including trend test and counterfactual test. Moreover, this study explores the relationship between the degree of reducing pollution caused by high-speed rail and the location of cities, which found that the opening of high-speed rail can greatly improve air pollution of areas in central city circle. Finally, it is found that when high-speed rail and other possible pollution items coexist, the improved effect of high-speed rail on air pollution is still obvious. Therefore, in order to exert the mitigating effect of high-speed rail on air pollution, it is necessary to rationally plan high-speed railway lines and develop the high-speed railways in cities closer to Shanghai.

scholarly journals City size based scaling of the urban internal nodes layout

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0250348
Author(s):  
Wenhan Feng ◽  
Bayi Li ◽  
Zebin Chen ◽  
Peng Liu
Keyword(s):  
Rural Areas ◽  
High Speed ◽  
Urban System ◽  
Structural Features ◽  
Internal Node ◽  
City Size ◽  
Urban Structure ◽  
The Impact ◽  
The Relationship ◽  
The City

The size of a city is not only essential for depicting the scale of the urban system, but also crucial to support the prosperity, order, and high-speed developments. However, its relation to the underlying urban structure has not been empirically investigated in detail. To examine the impact of city size on the city structure and quantify structural features, in this study, a statistical analysis was performed based on network science and an interdisciplinary theoretical system. To obtain the statistical law of internal node layout, the urban system was regarded as a complete graph weighted by the Euclidean distance. The relationship between the urban internal nodes layout (points of interest data, Weibo check-in data, and central point of road intersection data) and the city size was established. The results confirmed the existence of statistical laws in the layout of urban spatial elements, and explored the relationship between the changes in urban node network structure and inequality. This study provided a new perspective of urban structure to understand the complexity of the city, and suggested an approach to adjust this structure to narrow down the gap between the urban and rural areas.

Analysis of the Influence of Economic Factors on the Development and Utilization of Underground Space in the City Center

2014 ◽  
Vol 584-586 ◽  
pp. 2404-2410
Author(s):  
Yu Fei Liu ◽  
Zheng Qiang Song ◽  
Heng Lin Sun
Keyword(s):  
Evaluation Model ◽  
Underground Space ◽  
Economic Factors ◽  
City Center ◽  
Systematic Analysis ◽  
Analysis And Evaluation ◽  
Development And Utilization ◽  
Functional Mechanisms ◽  
The Relationship ◽  
The City

This paper examines the relationship between economy and development and utilization of underground space in the city center. Based on the investigations of some Chinese cities that are relatively advanced in the underground space development and utilization, this paper suggests using per capita GDP as an index to determine the development stages of the underground space. This paper also carries out a systematic analysis of the functional mechanisms of the economic factors and testifies these mechanisms with the help of case studies. The analysis and evaluation model of economic factors’ comprehensive influence is established in this paper, which proposes that the economic coefficient be used to measure the development level of the underground space in the city center. Through the calculation of the model, this paper further analyzes to what extent can the economic factors affect the development and utilization of the underground space in China’s city centers.

scholarly journals Dynamic Study of Intelligent Traffic Behaviour Based on Multiple Traffic Modes

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Hongwei Jing ◽  
Xiaoming Li ◽  
Guangquan Xu ◽  
Mengli Zhu ◽  
Li Shen ◽  
...  
Keyword(s):  
Spatial Structure ◽  
Power Law ◽  
Smart Cities ◽  
Rapid Development ◽  
Urban Spatial Structure ◽  
Power Law Distribution ◽  
Dynamic Relationship ◽  
Bike Sharing ◽  
The Relationship ◽  
The City

With the rapid development of society, the traffic problem has become increasingly severe, and the traditional methods can no longer effectively solve the current social traffic behaviour problems. Although studies on the dynamics of human traffic behaviour based on traffic modes can effectively reveal the anomalies in traffic behaviour, few studies integrate intelligent traffic behaviour with multiple traffic modes. Based on the numerous traffic data of bike-sharing and ride-hailing in a Chinese city, this paper reveals the dynamic characteristics of various traffic behaviours in the city by combining spatiotemporal characteristics index and urban spatial structure with human traffic behaviour patterns. The experimental results show that the traffic behaviour of the town presents a double logarithmic power-law distribution in time characteristics, and there is a close interdependent dynamic relationship with the city’s spatial structure. The research in this paper can reveal the relationship between bimodal power-law distribution and spatial characteristics in complex systems and help solve social traffic problems effectively in social reality. Further research results can provide practical planning guidance for the behavioural integration of multiple traffic in smart cities.

Wenn stadtpolitische Bewegungen das Terrain des Staats betreten

2018 ◽  
Vol 48 (191) ◽  
Author(s):  
Jonathan Diesselhorst
Keyword(s):  
Social Movements ◽  
City Government ◽  
Housing Policies ◽  
Hierarchical Decision Making ◽  
Urban Social Movements ◽  
State Apparatus ◽  
Hierarchical Decision ◽  
Relationship Of ◽  
The Relationship ◽  
The City

This article discusses the struggles of urban social movements for a de-neoliberalisation of housing policies in Poulantzian terms as a “condensation of the relationship of forces”. Drawing on an empirical analysis of the “Berliner Mietenvolksentscheid” (Berlin rent referendum), which was partially successful in forcing the city government of Berlin to adopt a more progressive housing policy, the article argues that urban social movements have the capacity to challenge neoliberal housing regimes. However, the specific materiality of the state apparatus and its strategic selectivity both limit the scope of intervention for social movements aiming at empowerment and non-hierarchical decision-making.

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