geodesign summit slides
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September 19–20, 2013 | Herwijnen, Netherlands
Geodesign Summit EuropeSeptember 19–20, 2013 | Herwijnen, Netherlands
GeoDesign In practiceLessons learned & future developments
Robin Seijdel, StrateGis
Robin Seijdel
• Co-founder of StrateGis
• Driven by developing tools for participatory design and decision making
• Practical
StrateGis
• GeoDesign for Urban Development since 2006, > 100 projects
• 3D GeoDesign solution: the Urban Developer
• Demand driven
What do we do?
B.Build: we build 2 & 3D GeoDesign models for Urban Development
L. Learn: we learn and understand by enriching our models with data and analysis
T. Transform: we simulate and assess transformations in the urban environment
Especially in the early stages of decision making
Spekkink and van Wijk [1998]
Impact of decisions on the end product
Available information
Lifecycle
When there is something to
choose
For large projects and portfolios
Almere
• 60.000 dwellings
• 100.000 jobs
• 2013 - 2030
Port of Rotterdam
City of Rotterdam
Redevelopment business cases
Development strategy Stadshavens
In the front office
Goals for our Urban Developer (a few)
●Solid financial model (Discounted Cash Flow)
●Interactive and fast
●Scalable conceptual object model: UIM
●Etc.
Urban Information Model
Each object class has it’s own specific:
• Interface
• Set of attributes & algorithms
• Aggregation routines
• Relations with other object classes
exis
tin
gN
ew
Step 1: Build the model (automated ‘snaphot’)
GIS file/database with attributes GIS importer & attribute mapper
Fully annotated & functional 3D Geodesign
model
Result step 1
Step 2: Learn by observing
Step 2: Learn by analyzing (selectable heat maps)
Financial analysis present situation
Select objects through legend
Uuse sequence of heatmaps as filter (zoom in on target
area’s)
Apply measures to
selected objects
Step 3: Transform
Step 3: Transform and assess
Fast 3D content creation
Step 4: Optimize (financial)
Step 4: Optimize (spatial)
Step 5: report
Fabriek Woningbouw
Open, transformatie Open, nieuwbouw Dicht, transformatie Geen haven Havenmond l inks Havenmond rechtsSloop -1,25 -1,81 -0,53 mln - - - Sanering -0,12 -0,12 - mln -0,55 -1,48 -1,47 Bouwrijpmaken -0,19 -0,19 -0,18 mln -0,51 -0,52 -0,51 Terreininrichting -1,15 -1,20 -0,83 mln -1,07 -2,03 -1,75 VTU/POK & onvoorzien -1,03 -1,26 -0,58 mln -0,80 -1,51 -1,40
(Ge)bouwkosten totaal -25,19 -20,04 -34,10 mln -4,92 -5,95 -11,51 Opbrengst gebouwen 27,30 24,65 34,39 mln 7,12 8,23 14,25
Totale kosten -28,94 -24,63 -36,22 mln -7,85 -11,49 -16,65 Totale opbrengsten 27,30 24,65 34,39 mln 7,12 8,23 14,25 Saldo (nom.) -3,74 -4,59 -2,12 mln -2,92 -5,54 -5,14
NCW -2,11 -0,63 -2,45 mln -0,92 -3,09 -2,69
Aantal ggw - - - st 22,00 25,00 22,00 Aantal mgw 45,00 35,00 46,87 st - - 25,00 Hotel 5.530,00 5.530,00 7.187,30 m2 - - - Horeca 833,30 833,30 1.982,80 m2 - - - Overig 911,50 605,30 2.106,00 m2 - - -
Advanced financial modeling in GIS
300 m2 x € 10 = € 3.000
100 m2 x € 5 = € 5.00
€ 3.500
+
Basic financial modeling in urban development
• Discounted cash flow
• Variable interest rates
• Variable cost increases
• Legal issues
• etc
Connected system of financial flows
Land development
Real estate development
Real estate operation
Public space management
Real estate appraisal
Land lease
Land appraisa
l
v
Temporary operations
Energy generation
3D is 3D?
Level of Detail
Different stakeholders, also in 3D
Integrated model
Very rare !!
Land owner: parcels, land lease contracts
Existing real estate: owners, rental contract
Public space: municipality, management public area’s
You need ‘black selection’
Critical succes factors (1)
●Get high on your own supply
●Know your stuff
●Keep it modular FSI, m2,
Critical succes factors (2)
GeoDesign is a proces (workflow and managerial) and not just a piece of software.
Future
3D content creation on a geodatabase
Future?
CityEngine linked to Strategis Framework
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