Third International Workshop on "Geographical Analysis, Urban Modeling, Spatial Statistics"

1. High Resolution Analysis of Settlement Structure on Base of Topographical Raster Maps - Method and Implementation Gotthard Meinel Leibniz Institute of Ecological and Regional Development, Dresden/Germany (IOER)

9. Process Overview

10. Ground plan of DTK25-V Map Problem: mix of buildings, streets and scripts

11. Building extraction

12. Building mask

13. Ground plan DTK25-V Building extraction Building indicators Vectorization and measurement Building Extraction and Measurement

14. Workflow SEMENTA® Generation building layer Data base Calculation building indicators Result: High resolution settlement indicators Calculation block indicators Rule based classification Combining with mean density values

15. Example Building parameter Building perimeter Peri = 247 m Area of enclosed rectangle (area minimized) AreaRect = 2714 m²

16. Some selected Building Parameters overall 46 building parameters Variable Building indicator Range of Values AREAH Building area 87…38042 m² PERI Building perimeter 42…5408 m AREARECT Area of enclose rectangle 92…188714 m² RATIOAREA Ratio AREAH/AREARECT 0,12…1,0 RECTRATIO Ratio length/width of enclose rectangle 1…12 RECTLENG Length enclose rectangle 10…843 m RECTWID Width of enclose rectangle (=approximate building width) 6…258 m PATIO Number of inside courts 0…6 MAXWIDTH Maximal building width (=maximal inner circle) 1…69 m MAXDIAM Diameter of enclose circle 8…852 m HR Affiliation probability to class “high rise“ 0/0,5/1 MINBUDIST Minimal building distance in 100m-Buffer 0…100 m MEANBUDIS Mean building distance in 100-Buffer 0…81 m MINBLDIST Minimal building distance to block boundary 0…143 m NUALLJUNC Number of building junction 0…15 PCLLENGTH Length of building basic line 8…1701 m

17. Building Typology for Classification Level 1 Level 2 Code Name Code Short-Name Name 1 Multi-family house in closed block structure 11 MFH-G Multi-family house, traditional in closed structure 12 MFH-F Multi-family house, (traditional or new) free-standing 2 Multi-family house in open block structure 21 MFH-TZ Multi-family house, traditional in rows 22 MFH-IZ Multi-family house, industrial in rows 23 MFH-HH Tower block >50m 3 Detached, semi-detach. and row houses 31 EZFH Detached and semi-detached houses (EZFH) 32 RH Row houses 33 DH Traditional village-style house 4 Non-residential 41 IG Industry/commerce 42 BFP Strong functional profile such as administration, health/social, education/research, culture etc.

18. Classification Building extraction and classification Modelling of settlement structure

19. Building classification - first level Building classification by shape - Evaluation of building style (e.g. line, small) - using only building parameters

20. Building classification - second level Building classification by type - Evaluation of block parameters (e.g. Density, gap, land use class) - Calculation of more parameters (area part in block)

21. Block classification (on base on buildings) Block classification - dominant building type determine block type - combination of area- and count dominant principle

25. Results (inhabitants density for city Bonn) Calculation Reference

26. Program Implementation Se ttle mentA nalyzer - SEMENTA® (patent procedure is running)

28. ArcGIS Extension SEMENTA ®

30. Parameter settings in SEMENTA® choice input data output vector or raster regional density parameters

31. Status information in SEMENTA®

33. Output of SEMENTA® ArcMap-Project with 17 Layers and intelligent cartographic visualization (predefined legend)

34. Results for Dresden – Building Types

35. Results for Dresden - Footprint Density

36. Result for Dresden – Flat Density (100m-Raster) Dresden - Center

37. Potential – 3D-Visualization Example Dresden-Striesen

43. Ground plan DTK25-V Map Problem: mix of buildings, streets and scripts

44. Results for Dresden - Residential Density

45. Results for Dresden – Block Types

47. Ex-post Analysis (change detection) Time slot t 1-x Time slot t 1 Indicator (t 1 – t 1-x ) Value Settlement area 2,1 Hectare Number new buildings 11 Building demolition 1 Floor area 6.400 m² … inside development 2.600 m² … outside development 3.800 m² Fraction Inside dev. 40 % Density new Buildings 18 WE/ha

48. Empirisch ermittelte Dichtereferenz Abb. 7: Gebäudegrundfläche pro Einwohner (Dresden)

49. Ergebnis Dresden - Einwohnerdichte (100m-Rasterzellen) Dresden - Zentrum

50. Ergebnisbeispiel Einwohnerdichte (Dresden) Vorhersage Referenz

51. Ergebnisbeispiel Einwohnerdichte (Bonn) Vorhersage Referenz

52. Comparison DTK25-V (Old Graphic) andDTK25 (New Graphic) DTK25-V (old) DTK25 (new)

53. Failure Building Footprint (DTK25-V) Examples for form and area generalization in DTK25-V (red) in comparison with reference DSK (blue)

54. Topicality of DTK25-V