2003/10/23-24 french policies related to gi1 french policies related to geographic information:...

2003/10/23-24 French policies related to GI 1

French policies related to French policies related to geographic information:geographic information:

issues and lessonsissues and lessonsNathalie Eltchaninoff (INSEE)

Jean Philippe Lagrange (IGN)

François Salgé (CNIG)


ContentContent

• Major GI policies requirements– creating the "geo-referenced buildings register" – « dematerialising » the cadastre, – the large scale reference data (RGE)

• Respective role of traditional players– Data providers and interface with local governments – Producer and integrator of data collected by third parties

• Challenges– In France– In Europe


Major GI Policies: "geo-Major GI Policies: "geo-referenced buildings register" referenced buildings register"

• To support continuous census

• As wall as many other needs:– Municipalities administration– Utilities management– Emergency services– Services for the citizens

• Pinpoint every address in France


Address componentAddress component

• First stage, 2003:– An existing data base of

georeferenced address ranges

– An address information DB (to be chosen)

• Second stage, 2006: georeferencing of address information DB Address point data base


Address component - issuesAddress component - issues

• Choice of the first set of address points• Privacy issues: e.g., National council on information

distribution (CNIL) restrictions on distributing such data sets as the INSEE RIL

• Cost of creating and maintaining the data set– RIL Creation :

• 100 employees during 2 years for 6 000 000 addresses

– RIL Update : 30 persons each year

• INSEE to bring in its expertise, and knowledge of standards


Major GI Policies: Major GI Policies: dematerialising the Cadastredematerialising the Cadastre

• Partnerships with local governments and their partners– Vector cadastre

• Scanning of cadastral maps– All non vector maps

=>2005 on-line sheet by sheet cadastre


Major GI Policies: large scale Major GI Policies: large scale reference data reference data

• RGE as 4 components– Orthophoto– Topography– Land parcels– Addresses

• Registered to each other

=>2007 RGE as an infrastructure for GI


Orthoimage componentOrthoimage component

• Based on existing BD ORTHO product

• Nation wide: 1 meter accuracy, 50 cm resolution colour coverage

• Urban areas: Higher resolution coverages (25cm, 12.5cm)

• 2003 first coverage, then 5 years update cycle


Topographic componentTopographic component

• Based on existing BD TOPO product

• Nation wide: 1 meter accuracy, 2.5D data from stereoplotting

• Urban areas: Specific larger scale coverage

• Completion expected by 2007

• Continuous update process being put in place


Land parcel componentLand parcel component

• MoU between Cadastre Office and IGN

• Scanned sheets passed to the IGN

• Georeferencing, and assembling of cadastral sheets

• Consistent with orthoimagery and topographic features


Adresses componentAdresses component

246

12

Rue de Paris

Rue

Pas

teur

Adresse Niveau 1

Adresse Niveau 2

Adresse Niveau 3 3


Respective role of traditional Respective role of traditional playersplayers

• Data providers, and interface with local governments (INSEE statistical office, DGI cadastral administration)

• Producer, integrator, and distributor of data collected by third parties (IGN national mapping agency)


RGE acquisition policyRGE acquisition policy

• Wherever data is already available, and can be integrated in RGE: Try to do a deal:

• Integration of data in the RGE• IPR retained by the original producers/owners• But full distribution rights of this RGE subpart passed to IGN• Three partnership cases:

– Data provider and IGN RGE distributor– Data provider and IGN co-produce, IGN distributes– Both players produce, and distribute

• Else production taken care of by IGN– Either in house– Or, increasingly, by outsourcing it.

e.g., Land parcel data base production overwhelmingly outsourced


Rationale for integrationRationale for integration

• Best use of public money• Faster creation of RGE• Optimised maintenance • May foster the use of reference data• Help develop consistency, and

interoperability among data collections


IntegrationIntegration

• Agreements on data collection – Many signed– with the cadastre office (DGI)

• Partnership on creating, and maintaining the Land Parcel Data Base

– with other state agencies• IFEN (environment agency), French Railway Network agency,

Électricité de France, Regional directions of Ministry, ONIC…

– With local authorities • Partnership on creating, maintaining, and distributing RGE local /

partial coverages (e.g., some French ‘départements’, Bordeaux city)

• Outsourcing– Increasing share of topographic, and orthoimagery data production– Close to ¾ of the Land Parcel Data Base production

• Issue of developing the quality control, and integration capabilities


Integration: constraintsIntegration: constraints

• Quality:– Recognised and knowledgeable provider: Quality data– Data compatible with RGE (content and currency): Consistency of

RGE data– Available coverage large enough: Efficiency– Perennial provider

• Pragmatism:– Go for cost saving solutions– Comply with RGE collection timetable– Avoid too technically difficult integration


Expected benefitsExpected benefits

• Common infrastructure that brings in more homogeneity

• Shared data used for many applications– May be data sharing at the local level?

• Development of applications, and of GI use in decision making


Challenges (1)Challenges (1)

• Establish the French SDI, in connection with eGov developments

• Contribute to European reference data– Small and medium scale– Access to large scale in a

consistent way– EuroGeographics projects

• Establish interface of the French SDI with the ESDI


Challenges (2)Challenges (2)

• Integration of data from heterogeneous sources (first phases)

• Maintenance based on information collection from many sources

• Long term commitment of all the stakeholders, and contributors

2003/10/23-24 french policies related to gi1 french policies related to geographic information:...

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