Cadastral GIS An example from Bolivia Pretoria November 7, 2002 - - PowerPoint PPT Presentation

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Cadastral GIS An example from Bolivia Pretoria November 7, 2002 - - PowerPoint PPT Presentation

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Cadastral GIS An example from Bolivia Pretoria November 7, 2002 Christiaan Lemmen Foto: Edgar Dueri Foto: Ximena Pereira Foto: Eric Lawrie Foto: Eric Lawrie Foto: Raul Guarachi If one buys a piece of land from someone else, how can

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Cadastral GIS An example from Bolivia Pretoria November 7, 2002 Christiaan Lemmen

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Foto: Edgar Dueri

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Foto: Ximena Pereira

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Foto: Eric Lawrie

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Foto: Eric Lawrie

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Foto: Raul Guarachi

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– If one buys a piece of land from someone else, how can this person be sure the other

  • ne is the real owner of all land involved?
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– If one buys a piece of land how can he or she be sure this land is not included in a TCO (Tierras Comunitarias de Origen) area? Or in a communidad?

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– If one wants to invest in new buildings or in agricultural development and wants to establish mortgage, how can the bank be sure that the person requesting the mortgage holds the ownership on the complete land?

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– If one buys a piece of land how can he or she be sure this specific piece of land is ‘free’ of mortgage?

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– 5.1 million ha – Data collection, data ‘cleaning’ – Design of a maintenance proces – Database and application

Chuquisaca Project, Bolivia

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Information to the Public

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Aerial Photographs

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Data Collection: Field Office

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Data Collection

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Data Collection

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Data Collection

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Data Collection

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Data Model

Right Object Subject

Ownership Usofruct Use Mortgage

Other

NP NNP Parcel Apartment

Informal Rights

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Right Object Subject

Cadastre

Input Feedback Throughput Output

Model of Maintenance

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Right Object Subject

Cadastre

Input Feedback Throughput Output

Model of Maintenance

Users Users

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CentralGovernment Provinces Municipalities Brokers Companies for Public Services National Bureau of Statistics Insurance Companies Citizens Notary Surveyors Banks

Cadastre

Users

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Cadastre Public Registers Field Sketches Cadastral Register Cadastral Map Deeds

Basic Components

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Right Subject Object Parcel 1 20 ha Ownership 1/1 NP Juan

Relations

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Right Subject Object Ownership 1/2 NP Juanita Parcel 2 0.2 ha Ownership 1/2 NP Carlos

Relations

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Right Subject Object Parcel 3 4500 ha Ownership 1/1 NNP TCO

Relations

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Ownership 1/1 NNP Municipality Parcel 5 10 ha Ownership 1/1 Parcel 4 70 ha Right Subject Object

Relations

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Ownership 1/2 NP Johanna Parcel 6 50 ha Ownership 1/2 NP Javier Usufruct NNP TCO Right Subject Object

Relations

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Relations

Right Subject Object Parcel 7 20 ha Informal NP Peter

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Right Subject Object Ownership 1/2 NP Jan Parcel 8 1 ha Ownership 1/2 NP Leo Apartment Parcel 8 =>Part 1 Apartment Parcel 8 =>Part 2

Relations

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Foto: Raul Guarachi

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Foto: Eric Lawrie

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Transaction: Establishment of Mortgage

Right Subject Object Parcel 9 1 ha Ownership 1/1 NP Jan Mortgage $ 10.000 NNP Bank Parcel 9 1 ha Ownership 1/1 NP Jan

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Right Subject Object Ownership 1/2 NP Juanita Parcel 10 5 ha Ownership 1/2 NP Pedro Mortgage $ 8.000 NNP Bank Ownership 1/2 NP Juanita Parcel 10 5 ha Ownership 1/2 NP Pedro

Transacción: Constitución de Hipoteca

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Transaction: Division

Right Subject Object Parcel 11 5 ha Ownership 1/1 NP Maria Ownership 1/1 NNP Municip Parcel 12 3 ha Ownership 1/1 NP Maria Parcel 13 2 ha

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Cadastral Map

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Platform

Windows 2000 Windows 2000 (Microsoft) (Microsoft) Oracle 8i Oracle 8i (Oracle) (Oracle) GeoMedia GeoMedia Professional Professional (Intergraph) (Intergraph) Visual Basic Visual Basic (Microsoft) (Microsoft) Industrial Standards

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SAC (Automated Cadastral System) – Urban and rural cadastre – Transparent – Simple structure – First System to maintain cadastral data in Bolivia

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Funcionality of the SAC

– Cadastral maintenance (object, subject, right) – Information supply – Geometric data and topology – Parcel identifiers + area calculation – Cadastral certificate – Application at national level – Data security, authorisation – Data conversion from other projects

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Processes – Alfa-numerical maintenance – Graphical maintenance, surveying – Information supply – Quality improvement – Management analyses – Notification

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Field survey

01-1 02-3 03-4 04-3 05-2 06-7 29-7 28-7 100 99-7 (orientation) 10-1 21-5 22-2 23-2 24-2 25-2 26-2 12-2 11-2 15-1 16-2 17-2 18-2 19-2 20-8 14-2

T L M

T: tacheometer L: measuring line M: distance-series

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Remarks – It’s very easy to make a cadastral infrastructure very complex, it’s very complex to make it easy – Cadastre is there for it’s users - not the

  • ther way around...
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Thank you