land information system brief presentation on the technical guidelines/ methodology for...

Land Information SystemBrief Presentation on the Technical Guidelines/

Methodology for Implementation of The National Land Records Modernization Programme

(NLRMP)

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Pan India Consultants Pvt Ltd ( An ISO 9001 : 2000 Certified Company )

04/19/23 Confidential www.panindiagroup.com

Importance of cadastral records and land information systemsAccess and use of land are fundamental to life as we know it... Food,

fiber, habitation, recreation, and so forth. Land parcel is the basic unit for access and control of land, land use decisions.

Current, reliable land information necessary for many public programs, for example:

land planning infrastructure development and maintenance environmental protection and resource management services social service programs and so forth

basis for land markets, development, and other economic activity

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•Govt. of India has decided to implement the Centrally- Sponsored scheme in the shape of National Land Records Modernization Programme (NLRMP).

•The major component of NLRMP are : Computerization of Land Records, Integration of spatial &

non- spatial/textual information. Strengthening of Revenue Administrations and updating of

Land Records(SRA & ULR). Establishment of modern record rooms/ Land Record

Management centers at Tehsil/Revenue Circle/District level


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Geographical Information System (GIS) and Land Records?

Relating "legal" description of property to coordinate-based systems

To highlight / & then minimize ambiguous or overlapping boundaries

Complex attribute relations

Finally access to public


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Concept for a Multipurpose LIS PIC


DIGITISATION & GEO-REFRENCING and linking of RoR data

ofVILLAGE CADASTRAL MAPS

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Process

•Collecting hardcopy maps/sheets from the concerned Land Record Department•Indexing & Coding•Scanning of Village/Cadastral map sheets

•Grid base generation or•Map grid generation•Grid correction of Cadastral images

•Digitization of individual scanned Village map sheets(grid corrected)•Edge Matching and Mosaicing up to Village Level•Cleanup and topology building•Quality Control/Checks- Rectify errors•Data Translation-GIS environment•Georeferencing of individual villages, mosaicing up to tehsil/district/state level•Quality assurance•Final deliverables

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Abbreviation Description

S State codeD District codeT Tahsil code

A/B Anchal/ block codeP Gram panchayat codeR Revenue circle codeH Halka codeV Village code in 2001 censusW Ward codeN Sheet no.

Indexing & Coding and Scanning of Input MapsFor scanned output *.tif will be coded as per Census 1991/2001

(DDTTRRHHHVVVnn) as refer in Table: Coding and Indexing.

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Scanning

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Approach to generate true Replica of Input Maps

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Process to rectified scanned maps

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A rectangle (vector) of known dimensions with 9 reference points created.

Grid used to minimize scanning distortion/input errors

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SCANNING PROCESSBefore proceeding for scanning we marked/transfer 9 reference points on each individual map sheets.

Context Scanner 6300

SHEET WISE SCANNED OUTPUT OF CADASTRAL MAP

ekSt+k % MqUMhx<+k

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Grid overlaid on the scanned Cadastral Map

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Rectified scanned map with overlaid grid

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Alternate Approach followed for scanning of

Input Maps

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Sheet wise scanned output of Cadastral Maps of a VillagePIC


Grid used to minimize scanning distortion/input errorsPIC

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Grid overlaid on Cadastral Map

Distortion in Original grid lines of cadastral map with overlaid vector grid

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Grid overlaid on Cadastral Map

Distortion minimized in scanned Cadastral maps using vector grid

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Rectified/Un-rectified scanned maps –A Comparison

Rectified scanned map with overlaid grid

Un-rectified scanned map with overlaid grid

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DIGITIZATION

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Concept for aMultipurpose Land Information System

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Concept for aMultipurpose Land Information System

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Different layers created for different features (poly/line/point etc.) keeping in mind their usage in the GIS data base

LIS- STANDERDS.DOC

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Standard Template & Legend

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Digitized output of the cadastral map { ekSt+k % MqUMhx<+k }

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Final Digitized output with Legend

Enlarged View of Legend showing different layers

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Different sheets mosaiced at Village level

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Customize QC routine

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Check print of the cadastral map { ekSt+k % MqUMhx<+k }

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ekSt+k % MqUMhx<+k with error report

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Digitized out put(1:1 matching)


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Digitization using dimensions


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Enlarge view of map generated using dimensions


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Shift in features

Now the digitized output is ready for:

• Processing of digitized data to generate the out put as per the guidelines/specifications provided by LRD.

• Check plot generation for verification with original input map.

• Incorporation of errors/feedback or other remarks of first QC

• Finalization of data & composition of final map.

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Data Translation and linking with RoR data

The data would be converted from AutoCAD to Arc coverage/shape & Geo database by using data migration tools/customized routines/programme etc. These tools will be designed as per the LRD Specifications.

•The list of records/files will be verified to make sure that all the data is converted successfully. As soon as the migration is finished, the created error logs would be fixed. Also check the completeness of the data translation through internally developed software routines.

•These routines would ensure that all the features are translated by comparing the source and the target data. After the successful completion of the migration process, it can be noted that all the data is present in the geo-database without losing any information.

Feature coding for polygons/lines & points features i.e. preparation of coding scheme for different features present in maps, generation of code for whole tehsil and structure for respective backup table will be built strictly as per NIC/LRD requirement/guidelines for linking of RoR.

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Sample output of RRSSC- Chattisgargh Project


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Sample from H.P. Land Records


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Sample from Orissa Land Records


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Quality Assurance•Verification of naming conventions , scanning, digitization, topological correctness, unique feature coding, completeness of data, accuracy and RMS errors will be checked.•Verification of positional accuracy, attribute accuracy, logical consistency, completeness, edge matching and Mosaicing will also be verified at village and then at tehsil level.•Quality Criteria will be as given below:

•Directory/folder structure: 100%•File naming convention: 100%•Data readability: 100%•Data structure: 100%•Data format: 100%•Topology: 99%•Attribute correctness: 98%•Attribute completeness: 98%•Meta data of each stage deliverables 98%

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Unprojected output of the cadastral map { ekSt+k % MqUMhx<+k } with Attributes

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Projected output of the cadastral map { ekSt+k % MqUMhx<+k } overlaid on QB Data

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Feature wise thematic map of NAMKUM block

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Village Thematic Map of NAMKUM Block

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Metadata format for final prints

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Digitized output of the cadastral map

Enlarged view of legend showing different layers04/19/23 Confidential

www.panindiagroup.com

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Following different clipped parts used for the final

composition of map


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Input Village Map


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Geo-referenced output of digitized revenue map


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Thank You for being Patient

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Quality Is Not anOvernight Affair- Philip Crosby

Krishan dev Sood


land information system brief presentation on the technical guidelines/ methodology for...

Documents

control of land

land markets

land parcel

land information systemsaccess

land use decisions

land recordssra ulr

cadastral records

public programs