Papers by Keyword: Mountain City

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Authors: Bo Yan, Shun Bo Chen, Shu Yang Deng
Abstract: The fast urbanization is incurred with an increasing frequency and variety of sudden burst of disasters, especially in the mountain city. Its complex geographical environment restrains the population evacuation and the refuge; therefore, it is of great significance to explore into the disaster prevention in the mountain city. The green land system plays a positive role in urban disaster prevention and relief. With the analysis of deficiencies facing Shapingba district of Chongqing in the use of the greening system, plus theories of the green land system and the disaster prevention, the paper discusses how to improve the urban function of disaster prevention and relief via the green land system. To be specific, the green land system can be relied on to strengthen the urban system of disaster prevention; the network-shape green land system should be improved to form appropriate disaster prevention division and level; the route of disaster prevention and refuge is referenced to reasonably allocate the urban green land; the urban public green land is increased to enlarge the refuge area; many trees are planted to work as the isolating belt of disaster prevention.
Authors: Qiang He, Yue Zhi, Wen Tao Yan, Shu Ming Wang
Abstract: The storm runoff model in mountain city, based on hydrology, hydraulics and the watershed spatial data is targeted at the features of large slope of land surface and fast speed of runoff-contribution & flow-concentration in mountain city, is of great significance to achieve the goal of making an analog experiment on the processing of urban storm runoff, to locate the inland inundation spot and predict the time of the water withdrawal as well as manage and utilize the water volume and quality of the storm runoff. As a result, we’ve developed a distributed storm runoff model in small watershed in the mountain city on the basis of GIS platform. This model has been applied for analyzing the storm runoff (twice) in Panxi River Valley in North New Zone of Chongqing. The results showed that the Nash-Sutcliffe coefficient, Ens is 0.56; and the relative error is 11.8%, compared the simulated result with the actual measurements 2010/6/7; the Ens is 0.76,; and the relative error is 8.82%, compared the simulated result with the actual measurements 2010/7/4, it showed that the simulated result is of high precision with the model. According to the parameter sensitivity analysis, the most sensitive parameters of the storm runoff model are the width of subcatchment, slope and impermeable area rate.
Authors: Jing Ru Gao
Abstract: Restricted by terrain, intersections in Mountain cities are always deformity intersections. Based on the researches on deformity intersections in Chongqing, this article establishes basic information database of these intersections, and then select the main impact factors of capacity among these deformity intersections through the evaluation method of principal component analysis, and provides a theoretical basis for study on capacity improvement of deformity intersections in mountain cities.
Authors: Ling Zhao, Juan Cao, Bo Mi
Abstract: Aim at the characteristics of the mountain cities road traffic network, the short-time data signals in the congestion state of the road network traffic is analyzed. Fractal characteristics of traffic data signal is in research based on the self-similarity of the traffic data signals. The non-stationary property of the traffic flow signal in the congestion state is known through the calculation of the multifractal spectrum of the traffic flow signal based on EMD. The experimental results show the feasibility of the method, which also can provide theoretical support for the traffic flow control of the mountain city road network in the sub-health state.
Authors: Gang Chen, Fu Jia Liu
Abstract: As a city's essence, the urban public space is a space for the growth of vigorous activity. In reality, it has lost, and the concern of it is essentially to the people’s land and the living space. We study examples of urban public space in Chongqing with the Intensive design thinking, and study the public spatial consciousness, the behavioral trait. Hope to strengthen the exchange, enhance the vitality of the city, and thus make a new interpretation in the harmonious living and the concept of low-carbon city from the material level.
Authors: Hong Yuan, Xin Rong Liu, Zhi Zhong Dai, Jiang Fang Luo, Peng Li
Abstract: The city nowadays becomes the home of high concentration of carbon emissions. Hence, the development of underground space can lead to the integration of transportation in urban agglomeration, specifically in mountain cities. However, underground space can be layout as the structure of "Flake-node network" in the core area ,or the structure of "gathering point" in the periphery consequential area .The planning of underground space coordinate the ground city‘s structure of" Multi-center and team-style", and should develop by axis with track.
Authors: Hong Xia Feng, Yun Li
Abstract: Starting from terrain analysis, this paper uses GIS space analysis technology, through constructing study frame of mountain city complex terrain, to state how to conduct the effective utilization and reasonable reformation to complex terrain, and put forward the new vertical design method of mountain city complex terrain, and combined with the vertical design in new Dali Haidong District planning to prove.
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