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APPLICATION OF GIS METHOD TO IDENTIFY URBAN SILHOUETTE FORM

APPLICATION OF GIS METHOD TO IDENTIFY URBAN SILHOUETTE FORM. By: Rahman Tafahomi Seyed Moslem Seyed Al Hosseini Hassanuddin Lamit Ahman Bushri. Introduction:. Each city has particular form that make it special There are numerous urban forms

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APPLICATION OF GIS METHOD TO IDENTIFY URBAN SILHOUETTE FORM

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  1. APPLICATION OF GIS METHOD TO IDENTIFY URBAN SILHOUETTE FORM By: RahmanTafahomi Seyed Moslem Seyed Al Hosseini HassanuddinLamit AhmanBushri

  2. Introduction: • Each city has particular form that make it special • There are numerous urban forms • patterns of cities are equal to city numbers • Perception of laypeople is so general in city • Perception of laypeople is regarding to location • Comprehensive perception of city concern with experts then laypeople

  3. Issue: • GIS system is a tool to: • Integrate geometric data and non geometric information • connect and like between graphical data and non graphical (vector and raster) • Convert information into data and vase versa • arrange, configure, classify, illustrate data • Present height of buildings regarding to data • Able to create visual form to analysis

  4. Issue continue… • From of city combine from natural terrains and man made elements • Topography is important factors in natural part • Roads and buildings are significance parts of man made • Overlays technique adjust these two groups of data and information

  5. Methodology • Integrated method including: GIS and Urban Design methods • Application of: ArcMap, Spatial analyst, 3D analyst, and ArcSceneextension

  6. Research process

  7. Concept of Silhouette Form • The silhouettes are easily recognized. But there is no color, shading, motion, or texture. Nor is context of any help; your present location, the time of day, and other contextual factors could not help you to predict context are often not necessary for successful recognition. Shape alone is often sufficient. • what is in the figure. The figure contains only shape, and that of a restricted type, • namely silhouettes. • Thus, in many cases, shape alone permits successful recognition of objects.

  8. Boundary is important factor in silhouette of shape or elements that it could create line to separate mass from spaces.

  9. Concepts of Urban Silhouette

  10. Silhouette of Hong Kong city

  11. Mass parts of cities as Different Urban Silhouette

  12. Research Design

  13. Sorts of Data for Urban Silhouette

  14. Designing Structure of Data in GIS

  15. Auto Cad Maps as a platform

  16. Data and information to create data base bank

  17. Linkage between data and information

  18. Linkage between data and information

  19. Creation of landform as illustration base

  20. Simulation of 3D forms of Buildings

  21. Simulation of 3D forms of Buildings

  22. Simulation of 3D forms of Buildings

  23. Data Analysis and Findings of Research

  24. Topography heights in Mashhad city Area

  25. Periodical expansions of Mashhad city

  26. Topography of Mashhad city

  27. Heights of buildings in Mashhad city

  28. First ring of urban silhouette form in Mashhad city

  29. Second ring of urban silhouette form in Mashhad city

  30. Third ring of urban silhouette form in Mashhad city محل هتل هما شماره 1

  31. Conclusion: • Arc GIS and Arc Scene have ability to illustrate and redesign the buildings heights to create urban silhouette forms • Arc GIS and Arc Scene have ability to redesign urban silhouette forms regarding data and information of the graphical codes on the maps and no graphical information • GIS platform have good ability to create natural landforms of city and placement the bulk of city • GIS technology makes it to technical presentation that different group of experts and professional could do it. • According to specification of silhouette concept, simulation of a rough draft of the city bulk and mass as silhouette provide cyber situation for planners, designers, managers, and laypeople to consider their situation in city for different objectives and purposes.

  32. References: • Batty, M., Chapman, D., Evans, S., Haklay, M., Kueppers, S.N., Shiode, N., Smith, A., and Torrens. P.M. (2000) Visualizing the city: Communicating urban design to planners and decisionmakers. Centre for Advanced Spatial Analysis - Working paper Series, Paper 26. http://www.casa.ucl.ac.uk/visualcities.pdf (Accessed 15 January 2002). • Benevolo, L (1980) The History of The City, The MIT Press, USA • Burrough, P.A. (1986) Principles of Geographic Information System for Land Resource Assessment,. Oxford Clarendon Press, London • Burrough, P.A. and McDonnell, R.A. (1998) Principles of geographical information systems. Oxford University Press, 333 pp • European Commission Working Group. (2006) Good Practice Guide for Strategic Noise Mapping and the Production of Associated Data on Noise Exposure. http://ec.europa.eu/environment/noise/pdf/wg_aen.pdf, Access Date: 15-09-2006 • Headman and jazofski. (1988) Fundamental of Urban Design, • Kurakula, V. (2007) A GIS-Based Approach for 3D Noise Modeling Using 3D City Models, International Institute for Geo-Information Science and Earth Observation, Enscheda, the Netherlands • Mak, A.S.H, Yip,E.K.M and Lai, P.C (2005) Developing a City Skyline for Hong Kong Using GIS and Urban Design Guidelines, URISA Journal • Vol. 17, No. 1 • 2005 • Morris, A.E.J (1979) History of the Urban Form, George Godwin Limited • Morris, A.E.J (1994) History of the Urban Form: Before the Industrial Revolution, Harlow, Essex, Longman, 3rd edition • Tafahomi, R. (2007) Transition Process of urban Space in Iran, international postgraduate seminar, UTM, Malaysia, March • Xia, Z, Qing, Z. (2005) APPLICATIONS OF 3D CITY MODELS BASED SPATIAL ANALYSIS TO URBANDESIGN, School of Urban Studies, Wuhan University, china • Albert, M.K (2001) Surface Perception and the Generic View Principle, TRENDS in Cognitive Sciences Vol.5 No.5 May 2001 • Efrat, A. , Guibas, L.J., HallHolt, O.A. Zhang, L. (2007) On Incremental Rendering of Silhouette Maps of a Polyhedral Scene, Computational Geometry: Theory and Applications, Science Direct • Harbour, B. (2004) Create Anaglyphs Using Arc Scene, ArcUser, July • Al Burshaid, F.I, and Al Hader, M.F (2007) BAHARAIN GIS-BASED 3D CITY SPATIAL GEODATABASE, GEOMATEC (a subsidiary of Bahrain Centre for Studies and Research)Manama , Bahrain

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