This document summarizes a presentation given by Robin Seijdel of StrateGis at the Geodesign Summit Europe on September 19-20, 2013 in Herwijnen, Netherlands. StrateGis uses geodesign to support urban development planning through their 3D modeling tool called the Urban Developer. The tool allows users to (1) build 3D models from GIS data, (2) learn from the model by analyzing data, (3) transform the model by applying measures, (4) optimize financially and spatially, and (5) report results. StrateGis has used this approach on over 100 projects including large developments in Almere and redevelopment plans for the Port of Rotterdam

1. September 19–20, 2013 | Herwijnen, Netherlands

2. Geodesign Summit Europe
September 19–20, 2013 | Herwijnen, Netherlands
GeoDesign In practice
Lessons learned & future developments
Robin Seijdel, StrateGis

3. Robin Seijdel
•
Co-founder of StrateGis
•
Driven by developing tools for participatory design and
decision making
•
Practical

4. StrateGis
•
GeoDesign for Urban Development since 2006, > 100
projects
•
3D GeoDesign solution:
the Urban Developer
•
Demand driven

5. 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

6. Especially in the early stages of decision making
Available information
Impact of decisions on the
end product
Lifecycle
Spekkink and van Wijk [1998]
When there is
something to choose

7. For large projects and portfolios
Almere
• 60.000 dwellings
• 100.000 jobs
• 2013 - 2030

8. Port of Rotterdam
Redevelopment business cases
Development strategy Stadshavens
City of Rotterdam

9. In the front office

10. Goals for our Urban Developer (a few)
● Solid financial model (Discounted Cash Flow)
● Interactive and fast
● Scalable conceptual object model: UIM
● Etc.

11. New
Urban Information Model
Each object class has it’s own
specific:
• Interface
existing
• Set of attributes & algorithms
• Aggregation routines
• Relations with other object
classes

12. Step 1: Build the model (automated ‘snaphot’)
GIS file/database with attributes
GIS importer & attribute
mapper
Fully annotated & functional
3D Geodesign model

13. Result step 1

14. Step 2: Learn by observing

15. Step 2: Learn by analyzing
(selectable heat maps)
Select objects
through legend
Financial analysis present situation

16. Step 3: Transform
Uuse sequence of
heatmaps as filter
(zoom in on target
area’s)
Apply measures
to selected
objects

17. Step 3: Transform and assess
Fast 3D
content
creation

18. Step 4: Optimize (financial)

19. Step 4: Optimize (spatial)

20. Step 5: report
Fabriek
Sloop
Sanering
Bouwrijpmaken
Terreininrichting
VTU/POK & onvoorzien
Woningbouw
Open, transformatie
Open, nieuwbouw
Dicht, transformatie
-1,25
-1,81
-0,53
-0,12
-0,12
-0,19
-0,19
-0,18
-1,15
-1,20
-0,83
-1,03
-1,26
-0,58
Geen haven
Havenmond links
Havenmond rechts
mln
mln
mln
mln
mln
-0,55
-0,51
-1,07
-0,80
-1,48
-0,52
-2,03
-1,51
-1,47
-0,51
-1,75
-1,40
(Ge)bouwkosten totaal
Opbrengst gebouwen
-25,19
27,30
-20,04
24,65
-34,10 mln
34,39 mln
-4,92
7,12
-5,95
8,23
-11,51
14,25
Totale kosten
Totale opbrengsten
Saldo (nom.)
-28,94
27,30
-3,74
-24,63
24,65
-4,59
-36,22 mln
34,39 mln
-2,12 mln
-7,85
7,12
-2,92
-11,49
8,23
-5,54
-16,65
14,25
-5,14
NCW
Aantal ggw
Aantal mgw
Hotel
Horeca
Overig
-2,11
-0,63
45,00
5.530,00
833,30
911,50
35,00
5.530,00
833,30
605,30
-2,45 mln
46,87
7.187,30
1.982,80
2.106,00
st
st
m2
m2
m2
-0,92
-3,09
-2,69
22,00
-
25,00
-
22,00
25,00
-

21. Advanced financial modeling in GIS
300 m2
x € 10 = € 3.000
100 m2
x € 5 = € 5.00
€ 3.500
+

22. Basic financial modeling in urban development
• Discounted cash flow
• Variable interest rates
• Variable cost increases
• Legal issues
• etc

23. Connected system of financial flows
Land
lease
Real estate
appraisal
v
Land
appraisal
Land development
Real estate
development
Real estate
operation
Public space
management
Temporary
operations
Energy
generation

24. 3D is 3D?

25. Level of Detail

26. Different stakeholders, also in 3D
Integrated model
Land owner: parcels, land
lease contracts
Existing real estate:
owners, rental contract
Very rare !!
Public space: municipality,
management public area’s

27. You need ‘black selection’

28. Critical succes factors (1)
● Get high on your own supply
● Know your stuff
● Keep it modular
FSI,
m2,

29. Critical succes factors (2)
GeoDesign is a proces (workflow and managerial)
and not just a piece of software.

30. Future
3D content creation on a geodatabase

31. Future?
CityEngine linked to Strategis Framework

32. www.strategis.nl
robin@strategis.nl