AWS Community Day CPH - Three problems of Terraform
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Iccsa 2008 Gotthard Meinel
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)
13. Ground plan DTK25-V Building extraction Building indicators Vectorization and measurement Building Extraction and Measurement
14. Workflow SEMENTAĀ® 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 mĀ²
16. Some selected Building Parameters overall 46 building parameters Variable Building indicator Range of Values AREAH Building area 87ā¦38042 mĀ² PERI Building perimeter 42ā¦5408 m AREARECT Area of enclose rectangle 92ā¦188714 mĀ² RATIOAREA Ratio AREAH/AREARECT 0,12ā¦1,0 RECTRATIO Ratio length/width of enclose rectangle 1ā¦12 RECTLENG Length enclose rectangle 10ā¦843 m RECTWID Width of enclose rectangle (=approximate building width) 6ā¦258 m PATIO Number of inside courts 0ā¦6 MAXWIDTH Maximal building width (=maximal inner circle) 1ā¦69 m MAXDIAM Diameter of enclose circle 8ā¦852 m HR Affiliation probability to class āhigh riseā 0/0,5/1 MINBUDIST Minimal building distance in 100m-Buffer 0ā¦100 m MEANBUDIS Mean building distance in 100-Buffer 0ā¦81 m MINBLDIST Minimal building distance to block boundary 0ā¦143 m NUALLJUNC Number of building junction 0ā¦15 PCLLENGTH Length of building basic line 8ā¦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.
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
47. Ex-post Analysis (change detection) Time slot t 1-x Time slot t 1 Indicator (t 1 ā t 1-x ) Value Settlement area 2,1 Hectare Number new buildings 11 Building demolition 1 Floor area 6.400 mĀ² ā¦ inside development 2.600 mĀ² ā¦ outside development 3.800 mĀ² Fraction Inside dev. 40 % Density new Buildings 18 WE/ha