Advanced Materials Research Vols. 361-363

Abstract: The braking problems of vehicle on icy and snowy roads are analyzed. The acceleration data in the process of reducing speed was collected by an accelerometer. The rules of brake force changing and the acceleration were studied too. A simple calculation adhesion coefficient model was constructed and used to estimate the braking parameters. The curves of brake adhesion coefficient were also got. It is a available method to use an accelerometer to deduce the tires adhension characteristic.

Abstract: As the wetlands has decreased and degenerated badly due to human’s excessive use, it becomes to be a hotspot in international academe’s forefield to resume and rebuild wetlands. Simply opposing protection to using can effectively ease up the stress of wetland’s degradation in a short term, but is disadvantageous to wetland’s sustainable development. This article takes Tianjin Qilihai wetland as example, aiming at its existing problems, sums up two kinds of infection genes – exterior representation and interior motivation, and intensively analyzes the sticking point from three aspects – economic, acknowledgement and mechanism. It suggests that basing on the idea of accretion and co-prosperity, we can divide wetland area into three zone – core zone, buffer zone and experimental zone, and then let the interior dispersive inhabitants and production activities move out to the intensively constructed eco-town. Thus we can make scientific use of wetland’s economical value and promote circumjacent industries’ transformation. Moreover, by the recycling use of water on a model of source separation combined with wetland classification, the quantity of regenerated water would reach 18.25 million cubic meters. By the Low Impact Development (LID) strategies in the control and use of rainfall and flood, the quantity of rainwater for use would reach 8.62 million cubic meters per year. In this way, the wetlands’ ecological conservation would obtain regurgitation-feeding, the construction of eco-town would be organically combined with protection and using of wetlands, and an effective system of wetlands’ sustainable development and using would be established.

Abstract: Accessibility is a more effective criterion than mobility in determining the sustainability of transportation systems. However, accessibility is a quantitative and place-varying term that is often difficult for transportation planners to evaluate their schemes based on which. Transportation accessibility visualization can help reveal the complicated spatio-temporal and socio-economic patterns of the studied residents and areas. Currently, the Geographic Information Systems being used to produce accessibility results often fail to provide necessary flexibility for exploratory transportation accessibility analysis. In addition, the coarse-level and disaggregate accessibility mapping may produce negative impacts for users. In this study, an online integrated geo-visualization system is developed through combining various technologies to support transportation accessibility analysis. Case study is conducted and the results demonstrate the performance and feasibility of the prototype system.

Abstract: China’s natural resources and urban development face serious challenges, energy and environmental issues become increasingly prominent, forced us to reflect on the current model of urban development, exploring the new model of, taking the road of sustainable development. Low impact urban development can reduce the impact on the natural environment, maintain the natural ecological cycle of the city, and make the urban development in harmony with the natural environment. This article pointed out that we should apply the low impact development concepts into urban planning, discussed the urban planning principles and characteristics based on the concept of low impact urban development, made urban development established on the basis of the integration of natural environment, geography and climate, provided new opportunities for urban development.

Abstract: As two of debatable social topics in China, urbanization and the real estate investment draw more and more attention. So research effort is worth making to clarify the relationship between them. The authors make an organizing and summarizing of china’s urbanization and the present state of real estate investment by referring the documents on the same topic to a better understanding of the relationship between them in China. To further analyze the relationship and interaction mechanism of the two economic variables, this paper conducts an empirical analysis on the causality between urbanization and real estate investment through econometrics models including unit root test, co-integration test and Granger causality test, and studies the relationship of real estate investment growth and urbanization level growth from 1986-2008.

Abstract: Global climate changes are threatening the survival of our species. Landscape architecture adaptive to climate change has become a hotspot. Many low-carbon ideas are involved in the process of formation of some regional landscape. This paper discussed the low-carbon ideas in some regional landscape from scientific landscape pattern, technology of using clean energy, usage of local materials, ecological design for construction and so on. These ideas are valuable to modern landscape architecture. In order to create new landscapes accordant with the spirit of the times, more attention should been paid to how to integrate ancient low-carbon ideas, new technology, local characteristics and function into modern landscape architecture.

Abstract: As an industrial city, Shenyang has made important contributions to China. However, with the industrial restructuring since the reform and opening up, many factories were either moved to the suburbs or closed down; workers lost their jobs, which results in a regional decline. Gongrencun region is a declined region in Shenyang city, and it has lagged behind other regions. To change the status quo, Shenyang city government began to implement urban regeneration policy from April, 2000. Workers Life Hall and Cast Museum were built in this period, which is conceived as the representative practice of urban regeneration because of their good effects on regional development. Basing on the practice of urban regeneration in Gongrencun region, this paper will elaborate the limitations of regeneration approaches by analyzing the negative impacts brown about by the simple redevelopment and propose a scheme of sustainable regeneration for Gongrencun region.

Abstract: In order to improving the quality of water environment and increase water use efficiency, promoting and speeding up the reclaimed water facilities construction is a main measure in the northern cities with a shortage of renewable water in China. Urban reclaimed water planning is a strategic, special and comprehensive layout which involving a wide range of water management and development. Based on the analysis of the necessity of reclaimed water using and planning, the authors focused on the basic principles that reclaimed water planning should be followed and described the main elements that should be included in reclaimed water planning. As reclaimed water has played a significant role in Beijing’s existing water supply picture and its continued development is critical to meeting the growing water needs in the capital. With Beijing’s case studies a potential users selection principle of reclaimed water was presented.

Abstract: Scientific urban planning guides the urban sustainable development. Face to the great amount unreasonable adjustment of urban planning, how should Promote urban sustainable development The paper analyzes the effect of adjustment of urban planning to urban sustainable development and the reason to cause adjustment of urban planning, and put forward several countermeasures such as enhancing the flexibility of planning, improving the system, strengthen supervision, for rationalizing the adjustment of urban planning further, and guiding the urban sustainable development scientifically.

Abstract: The growth pole theory has a very important role in regional economic development. The theory was introduced to analyze spatial structure evolvement of coastal tourism region in Liaoning province which includes six cities: Dalian, Dandong, Panjin, Jinzhou, Yingkou and Huludao. And the tourism industry location quotient model was defined and was used to select the growth poles at city scale and tourist attractions scale of tourism industry based on relevant statistical data. The results showed that the cities of Dalian and Dandong can be treated as the first level growth poles at city scale, which the second level includes Huludao and Jinzhou, and the third level includes Panjin and Yingkou. And the growth poles at tourist attraction scale were established too. All the growth poles were incorporated with the coastal road to make up the pole-axis system, and then countermeasures were proposed for rational development of tourism industry of coastal tourism region in Liaoning Province.