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8/20/2019 43808_Course_6_Evaluation Method Spatial Planning Intro and Rating Method
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Evaluation Methods ofEvaluation Methods of
Spatial Planning:Spatial Planning:
Overlay/RatingOverlay/RatingMethodsMethods
Dr. Doni Prakasa E. PutraDr. Doni Prakasa E. Putra
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Multi Criteria EvaluationMulti Criteria Evaluation
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Multi Criteria Analysis
Multi Criteria Evaluation (MCE)
Multi Criteria Preference Analysis
Multi Criteria Decision Making
Multi Objective Evaluation
These methods are essentially one and thesame!
MCE = Multi-criteria evaluation ispriarily concerne! "it# #o" to cobinet#e inforation fro several criteria to
for a single in!e$ of evaluation
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BackgroundBackground
• Early methods (pre computers):
• Ian McHarg (1969)Design with Nature• Used for suitability analysis
• Tracing paper overlays
• Limited to simple Boolean analysis: AND, OR, NOT
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Maps as a Planning ToolMaps as a Planning Tool
Coputers #ave ai!e! plannersCoputers #ave ai!e! planners %nforation re&uire! by planners is voluinous%nforation re&uire! by planners is voluinous Coputers #ave playe! an increasing role forCoputers #ave playe! an increasing role for
planners to anipulate large volues ofplanners to anipulate large volues of
&uantitative inforation&uantitative inforation
Geographic Information Systems GIS!Geographic Information Systems GIS! allo" planners to anipulate t#e !ata to seeallo" planners to anipulate t#e !ata to see
an! use "#at !ata is useful to a planning taskan! use "#at !ata is useful to a planning task
"#ile inii'e or obscuring uniportant !ata"#ile inii'e or obscuring uniportant !ata
%* can allo" a planner to see !istinct +layers,%* can allo" a planner to see !istinct +layers,of inforation t#at are iportant to t#eof inforation t#at are iportant to t#e
!ecision aking process!ecision aking process
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Evaluation MethodEvaluation Method
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Post computers: Basic GISPost computers: Basic GIS
Approaches Approaches
• Polygon overlay (Boolean logic)
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8/20/2019 43808_Course_6_Evaluation Method Spatial Planning Intro and Rating Method
9/44a composite map for land$use planninga composite map for land$use planning
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The Basics
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Principles of MCEPrinciples of MCE• Methodology:
1.Determine criteria(factors/constraints) to be included
2.Determining the weights for eachfactor
3.Sensitivity analysis of results
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11stst Step: Determine theStep: Determine the
criteria to be includedcriteria to be included
•Criteria determine the alternatives
1.Oversimplification of the decision problem could lead to toofew criteria being used
2.Using a large number of criteria reduces the influence of anyone criteria
3.Often proxies must be used since the criteria of interest may
not be determinable
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PO/
An application t#at acts as an intere!iary forre&uests fro clients seeking resources froot#ers.
http://en.wikipedia.org/wiki/Client_%28computing%29http://en.wikipedia.org/wiki/Client_%28computing%29
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Example: Case study of a suitabledam and reservoir site
Criteria used: River
Urban Forest Accumulated water flow Existing reservoir Watershed boundary City ydraulic head
Undulation
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Determine the weightsDetermine the weights
• A decision is the result of a comparison of oneor more alternatives with respect to one or morecriteria that we consider relevant for the task at
hand.
• Among the relevant criteria we consider some asmore important and some as less important;this is equivalent to assigning weights to thecriterion according to their relative importance.
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2nd stage, assigning weights
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Weights assigned using the
an! "rder method
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Sensitivity analysisSensitivity analysis
sensitivity analysis: vary the scores/weights of the factors todetermine the sensitivity of the solution to minor changes
• Choice of criteria (e.g. why included?)
•
Assesses the reliability of data: how stable is the final result?• Choice for weighting factors is subjective
• Will the overall solution change if you use other weighingfactors?
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%&SE ST'"( ): Ran*ing/Rating Methods%&SE ST'"( ): Ran*ing/Rating Methods
Selecting Relocation of +and 'se in ,ot MudSelecting Relocation of +and 'se in ,ot Mud"isaster &rea -y &pplying Geo$Environmental"isaster &rea -y &pplying Geo$Environmental
EvaluationEvaluation
%ase Study: Sidoar.o East 0ava Indonesia%ase Study: Sidoar.o East 0ava Indonesia
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1lo2 up an eruptionof hot mud )34 mfrom 1an.ar Pan.i ) 2ell 10P$)! an oile5ploration of PT6+apindo 1rantas
78 May
7449
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AC0%1E M2D 1O3CA4O(5le!ug 6u"uP27ODAD%)
5A46A3A4
. A4/A
025A4
*A4%A4 POO4MO8O6E0O 6. A4/A
E*%6
+ocation of the Study &rea+ocation of the Study &rea
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O-.ectivesO-.ectives
Potential geo-#a'ar! in t#is !isaster areaPotential geo-#a'ar! in t#is !isaster areacoes frocoes fro
(9) t#e u! over:o"s(9) t#e u! over:o"s
(;) t#e poisonous gases(;) t#e poisonous gases
(
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Methodology Methodology
Evaluation of eo-environental =actors toEvaluation of eo-environental =actors to
De>ne t#e suitable places for relocation areaDe>ne t#e suitable places for relocation area
eo-Environental =actorseo-Environental =actors 9. eology incl. engineering properties9. eology incl. engineering properties
;. ?y!rogeology;. ?y!rogeology
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Geology of The StudyGeology of The Study
&rea &rea
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Engineering GeologyEngineering Geology
MapMap The homogenietyThe homogenietycondition used tocondition used to
divide the Eng6divide the Eng6Geology units areGeology units are
the characteristic ofthe characteristic of
the su-surfacethe su-surface
lithologieslithologies
geologicalgeological
discontinuitydiscontinuity
vertical vertical
displacementdisplacement
/su-sidence and/su-sidence and
depth todepth to
ground2ater6ground2ater6
A
5
C
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,ydrogeology "epth to,ydrogeology "epth to
Ground2ater Ground2ater
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,ydrogeology Ground2ater,ydrogeology Ground2ater
salinity salinity
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hot mud over;o2shot mud over;o2s
ha#ardha#ard
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,a#ard of poisonous,a#ard of poisonous
gasesgases
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,a#ard of su-sidence,a#ard of su-sidence?a'ar! of
subsi!ence
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EvaluationEvaluation
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ResultResult
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%onclusion%onclusion
5ase! on suitability ap of5ase! on suitability ap of
relocation area it is reasonable ifrelocation area it is reasonable if
t#e #ig# risk infrastructures (rail"ayt#e #ig# risk infrastructures (rail"ay
an! priary roa!s) a@ecte! by t#ean! priary roa!s) a@ecte! by t#e#ot u! blast s#oul! be relocate to#ot u! blast s#oul! be relocate to
t#e "est-part of t#e stu!y area.t#e "est-part of t#e stu!y area.
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Than* you for yourThan* you for yourattentionattention