tailieunhanh - Methods and Techniques in Urban Engineering Part 5

Tham khảo tài liệu 'methods and techniques in urban engineering part 5', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 6 Research on Urban Engineering Applying Location Models Carlos Alberto N. Cosenza Fernando Rodrigues Lima César das Neves Federal University of Rio de Janeiro UFRJ cosenza@ frlima@ cdn@ Brazil 1. Introduction This chapter presents a methodology for spatial location employing offer and demand comparison appropriate for urban engineering research. The methods and techniques apply geoprocessing resources as structured data query and dynamic visualization. The theoretical concept is based on an industrial location model Cosenza 1981 which compares both offer and demand for a list of selected location factors. Offer is detected on location sites by intensity levels and demand is defined from projects by requirement levels. The scale level of these factors is measured by linguistic variables and operated as fuzzy sets so that a hierarchical array of locations vs. projects can be obtained as result. The array is normalized at value 1 to indicate when demand matches offer which means the location is recommended. The case study is solved with geoprocessing tools Harlow 2005 used to generate data for a mathematical model. Spatial information are georeferenced from data feature classes of cartographic elements on city representation as administration boundaries transportation infrastructure environmental constrains etc. All data are organized on personal geodatabase in order to generate digitalized maps associated to classified relational data and organized by thematic layers. Fuzzy logic is applied to offer and demand levels translating subjective observation into linguistic variables aided by methods for classifying quantitative and qualitative data in operational graduations. Fuzzy sets make level measuring more productive and contributes for a new approach to city monitoring methods. Our proposition is to apply this model to urban engineering analysing placement of projects that impact on urban growth and development. To operate the .

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