Upload
rian
View
31
Download
0
Tags:
Embed Size (px)
DESCRIPTION
Knowledge based spatio-functional optimisation of urban environment. Richard Pouš & Tomáš Hlásny Matej Bel University, Faculty of Natural Sciences, Dept. of Geography, SLOVAKIA. The purposes. - PowerPoint PPT Presentation
Citation preview
Knowledge based spatio-functional optimisation of urban environment
Richard Pouš & Tomáš HlásnyMatej Bel University, Faculty of Natural Sciences, Dept. of Geography, SLOVAKIA
The purposesTo adapt the multi-criteria decision making techniques to optimise the intensification processes in a city built up area
To demonstrate these ideas in the Banská Bystrica city case study
To develop the database of the city spatial reserves To judge the city spatial reserves intensification potentialTo classify city spatial reserves into the appropriate suitability categories
The properties of knowledge-based optimisation of urban environment
Multiciteria nature
Operationality
Objectification
Retrogressive controlling
The workflow
Data gathering and processing
Decision frame definition
Evaluating space potential
Expert judgements analysis and synthesis
Synthesising
Classification
Backward tuning of decision scheme
Interpretation
Case Study – Banska Bystrica city (Central Slovakia)
•Position
•History
•Functions
Area of interest
Banska Bystrica city built up area delimited by plot borders
Urbanely Unused Areas – The Main Potential of Morphological
Intensification
The definition: All the areas laying in a city built up area the functions of which differ from those defined as “city functions” (i.e. living, working, recreation, traffic)
Materials and methodsData
Field mapping Extracting data from municipal database Cadastre maps
DatabaseGeoMedia Professional, v.5.2
Spatial component (plots, rivers, roads, administrative borders, etc.)Attribute component (unused areas geometric and thematic features, e.g. size, slope, distance from the city center, position in biocorridor, etc.)
The criteria usedKind of urbanely unused areaPosition towards central city zoneDistance from the city functional centreDistance from the city built up area edgesSizeCompactnessSlopeSlope aspectPosition towards climate inversionsAccessibility
Further criteria considered•Ownership •Engineering networks•Prices of plots•Functional surrounding of the area•etc.
Expert judgements
Synthesis No.1 – arithmetic mean
Synthesis No.2 – Principal Component Analysis
Weights derived as PCA scores
Scree plot of PCA
The synthesis
Next plans
Include further information to evaluate intensification potential more effectively.
How intensification potential develops horizontally? Are there some global trends or gradients ?
How to implement the results of our research into municipal databases?
Conclusion
The methodology is sensitive mainly to criteria and adjudicators selection and chosen synthesizing scheme.
The case study provedThe highest weights were reached by the criteria related to position towards important city components
The second place took the morphological properties
The third place took the environmental criteria related to the natural and hygienic parameters of the plots
Morphological Intensification of Spatial Development in Postsocialist Cities - Banská
Bystrica (Central Slovakia) Case Study
Richard Pouš & Tomáš HlásnyMatej Bel University, Faculty of Natural
Sciences, Dept. of Geography, SLOVAKIA