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Geospatial Modelling of Urban Security: A novel approach with Virtual 3D City Models Markus Wolff, Hartmut Asche 3D Geoinformation Research Group, University of Potsdam ICCSA | Perugia | July 2008

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],0 Presentation overview

Cities at risk ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],1 Introduction

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Cities at risk the Berlin case 1 Introduction

[object Object],Cities at risk the Berlin case 1 Introduction ,[object Object]

2 Populating existing city models

[object Object],[object Object],[object Object],[object Object],[object Object],Integrating thematic information 2 Semantic extension of geodata base

[object Object],Integrating thematic information 2 Semantic extension of geodata base ,[object Object]

[object Object],Populating the city model Frequency data provided by FAW 2 Semantic extension of geodata base ,[object Object]

[object Object],Populating the city model 2 Semantic extension of geodata base ,[object Object],[object Object]

3 Analysing urban risk exposure

[object Object],[object Object],[object Object],[object Object],Mapping levels of urban threat exposure 3 Geoanalysis of urban risk exposure assumed increased highly increased threat level Buildings shopping centres embassies petrol stations consulates police posts government offices power/transformer stations

[object Object],Mapping levels of urban threat exposure 3 Geoanalysis of urban risk exposure ,[object Object]

Mapping levels of urban threat exposure ,[object Object],3 Geoanalysis of urban risk exposure value of closest exposed building: embassy grid, e.g., contains distance cell values of closest buildings: embassies, consulate offices etc. ,[object Object],[object Object]

Mapping levels of urban threat exposure ,[object Object],3 Geoanalysis of urban risk exposure distance from exposure basis building [m] level 0 to 25 1 > 25 to 50 0.5 > 50 to 100 0.2 >100 to 200 0.1 >200 0 ,[object Object]

[object Object],Mapping levels of urban threat exposure grid weight embassies 4 consulates 4 shopping centres 2 petrol stations 1 government offices 4 police posts 1 power or transformer stations 1 3 Geoanalysis of urban risk exposure ,[object Object],[object Object],[object Object]

[object Object],Mapping levels of urban threat exposure 3 Geoanalysis of urban risk exposure ,[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],Visibility analysis for specific buildings 3 Geoanalysis of urban risk exposure

Summary ,[object Object],[object Object],[object Object],[object Object],4 Conclusion

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Speaker and Affiliation Project Information

Thank you for your attention! Questions? Comments? Feedback? Contact: Markus.Wolff@hpi.uni-potsdam.de Visit our website: www.3dgi.de

Wolff3 D

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