Experiences from States Gujarat “ Survey Using Electronic Total Station (ETS) and Global Positioning System (GPS)” Technology Fair- New Delhi . 15 -12- 2009 Experiences from States

Principal Secretary ( Land Reforms ) & Presented By : A. Bhattacharyya, I.A.S. , Principal Secretary ( Land Reforms ) & Settlement Commissioner & Director of Land Record, Gujarat State.

VISION To undertake detailed resurvey in Gujarat and create updated land records including textual and spatial information Enabling establishment of a system which will help in the continued maintenance of updated land records Provide ready and smooth access to required information to all stakeholders

Background of Land Survey in Gujarat…. Gujarat State is pioneer in the country having it’s survey records up to land parcels known as Tippans Land Survey was carried out long ago by Britishers and old Princely States of Gujarat during 1880 to 1915 . The object of the survey was to collect Land Revenue from the owner of land in proportion to the area they held. As per The Bombay Land Revenue Code, 1879 survey should have been conducted after 30 years of original survey.

Land Record Information in Gujarat Current Scenario….. The Government, through its organization, performs mainly two functions: Maintenance and updation of land records (textual records, including village form No. 6 ( Hakpatrak ) and Village Form No. 7/ 12 (Satbara) and Spatial records namely village maps and field measurement books commonly known as Tippans in rural areas.- Maintenance and updation of the textual and the spatial records in urban areas. The textual record is commonly known as Property Card.

Need for Advanced Survey Technology The survey records are outdated About 20 - 25% of the records have also been lost / destroyed / mutilated. Old survey was carried out using conventional instruments available at that time – (5% Tolerance limit was allowed ) Inaccurate records Documents in poor shape and not available at all.

( Field Measurement Record – unscaled ) Original Tippan ( Field Measurement Record – unscaled )

( Field Measurement Record – scaled / digitized ) Enlarged Tippan ( Field Measurement Record – scaled / digitized ) * Chain - Anna Survey No. 63 * Meter-CM N

Old Village Map (Interacting & Overlapping) As per Map As per possession & benchmark As per benchmark of S.No.1 S. no.1 Overlapped Area

Gujarat pioneer introducer Gujarat is pioneer in introducing modern survey technology ETS since 1990-1991 GPS since 1999-2000 Using this ETS technology approx. 250 villages have been re-surveyed Using GPS technology approx. 30000 hectares of land have been surveyed in Gujarat

GIS ready Digitized New Village Map

ETS & GPS Survey Machinery

What is Electronic Total Station Machine ETS is an new generation modern survey instrument. It is an optical theodolite combined with Electronic Distance Measurement ( EDM ) instrument and a mini computer which is helpful in collecting data of; Distance Angle Height. ETS reads, records & displays horizontal and vertical angle digitally. It stores the data in its internal data recorder. Precision of the instrument varies between 1“ to 7” (Seconds )

What is Electronic Total Station Machine …. Within the overall objective of XYZ data, the following 12 kinds of detailed data are also displayed HA = Horizontal Angle VA = Vertical Angle AZ = Azimuth or bearing SD = Slope distance HD = Horizontal distance VD = Vertical distance N = Northing E = Easting Z = Elevation Code = Feature Code 11. Time 12. Point No = Serial Point No.

What is GPS ? Global Positioning System (GPS) is satellite navigation system It is based on a constellation of 24 satellites orbiting around earth at a very high altitude, The system can be used to measure position of the object on the earth surface in a continuous measures This Mapping Datum created known as World Geodetic System -84 ( WGS-84)

SATELLITES AVAILABLE FOR G.P.S. SERVICE

GPS Measurements GPS is based on satellite We are somewhere on this sphere GPS is based on satellite ranging, measuring distance from Satellite Second measurements put us somewhere on this circles & narrows down our location By third measurements we get accurate location

Steps initiated by Department More than 80 ETS & 7 DGPS provided to field officers RFP floated to purchase another 13 ETS & 5 DGPS Circular issued - It is mandatory to measure land > 10 Hectare by ETS & > 50 Hectare by DGPS In House training facility at Deenadayal Institute, Gandhinagar Where 300+ surveyors are already trained on these instruments

Steps initiated by Department… People who come for private survey are charged as follows: By ETS: < 10 Hectare Rs. 2000 For every additional Hectare Rs. 200 By DGPS: < 5 Static Points Rs. 10,000 For every additional Points Rs. 2000 In RTK mode every point Rs. 200 500 Measurement by ETS during last 3 years Income of Rs. 1 Crore generated

Action Plan for Resurvey using high end technology Sr No District Total cost ( Rs. Crore) Starting YEAR Current Status 1 GANDHINAGAR 2.25 2008-09 2009-10 Already started by Departmental surveyors 2 Jamnagar 20.00 Work in Progress through private agencies 3 Patan 7.71 Tendering for outsourcing being finalised 4 Anand, Ahmedabad, Rajkot, Kutch & Sabarkantha 2010-11 123.00 Proposal being prepared 6 Action plan for other districts being finalised Banakantha,Vadodara, Panchmahal, Surat, Tapi, Surendranagar, 2011-12 7 Valsad, Navsari, Amreli, Bhavanagar, Kheda, Mehsana, Dahod 2012-13 8 Bharuch, Narmada, Junagadh, Porbandar 2013-14 9 Dang 2014-15

Use of ETS & GPS in Re –Survey Jamnagar District - A Case Study Establishment of GPS Ground Control network Z Value Validation – MSL Data from Survey of India Detailed survey of each land parcel with ETS Generation of all District, Taluka, Village and Land Parcel Map with Latitude / Longitude and Z data. Distribution of land parcel map to every land holder along with validation Preparation of allied land records and promulgation of record.

Gujarat State

Jamnagar District Total Area : 14,125 Sq. K.M. No. of Talukas : 10 No. of Villages : 695 No. of Land Parcels : 4,46,030 + sub divisions

Ground Control Network by DGPS Establishment of Ground Control Network by DGPS

Establishment of GPS Ground Control Network, Accuracy and Destination DGPS Control Interval – Distance K.M. GPS Observation Time Accuracy Base Station Centre of AOI > 24 Hrs. 1: 1,00,000 Regional Station Between 40 - 50 K.M. > 12 < 24 Hrs 1: 50,000 Primary Control 15 - 20 K.M. or 16 KM average >12 Hrs. Secondary Control 4 - 6 K.M. > 4 Hrs. 1: 20,000 Tertiary Control 1- 2 K.M. > 15 Minutes 1: 10,000 Auxiliary Control Point 200 Mtr. or more

Grid Generation (State Level – 16 x 16 Kms) Primary

Grid Generation (State Level - 16x16 Kms)… Primary control Jamnagar Dist. 16 x 16 K.M.

Secondary Control Grid Generation (Dist. Level – 4 x 4 Kms)…

Another view of Grid Generation (District Level – 4 x 4 Kms)…

With Lat / Long & Dimension New Land Parcel Map જિ. જામનગર સરવે ન. 132 તા. કાલાવડ ગામ કાલાવડ ધાક. મગનભાઇ નાનજીભાઇ મહેતા With Lat / Long & Dimension સરવે મામલતદાર, જિ.જામનગર

Outcomes expected from Jamnagar Resurvey Geodetic network with co-ordinates and sketch of the control points showing their description and location. District map, taluka maps, village maps and Land Parcel Maps with lat-long. The map projection and coordinates of the control points will be WGS 84 datum based Seamlessly mosaiced district digital database with layers of various topographical details & GIS. Digitized copies of the Village maps showing features like Survey No. , Name, Chalta No. will be obtained National level unified Village code Village map as per National mapping policy & land use pattern with unique feature code will be obtained.

Few examples of success stories of Survey Work using GPS & ETS technology

Banni Protected Forest Area Dist. Kutch , Gujarat Biggest grassland of Asia Area as per survey 2503 Sq. K.M. Total villages 42 Periphery 362 K.M. Time taken to complete 32 working days Surveyors 10 surveyor 1 supervisor

Banni Protected Forest ajsdjkvbKJSDBvckjaBSDvb Banni Protected Forest Survey Carried out by DISRA & DILR Kutchh

Port. Chanch ,Taluka Rajula Dist. Amreli Area of GPS survey including coastal area – 5000 + Hectare. Time taken to complete 9 working days Surveyors 4 surveyor 1 supervisor

Survey Carried out by DISRA & DILR Amreli Chanch Port Survey Survey Carried out by DISRA & DILR Amreli

Dholera Port. SIR Area Bhavanagar Dist. Infrastructure project like SEZ port, Ultra mega Power project and New international Airport Area of survey 11433 Hectare Total villages 7 Time taken to complete 20 working days Surveyors 10 surveyor 1 supervisor

Survey Carried out by DISRA & DILR Bhavanagar P T S I R U V E Y SIR SURVEY Survey Carried out by DISRA & DILR Bhavanagar

GIFT CITY, Gandhinagar Gujarat International Financial Tech City Biggest infrastructure project in Gujarat Capital investment of Rs. 1,00,000 + Crore 300 70 + storied High rise buildings Area of survey 500 Hectare Total villages 3 Time taken to complete 20 working days Surveyors 5 surveyor 1 supervisor

Survey Carried out by DISRA & DILR Gandhinagar GIFT CITY AREA Survey Carried out by DISRA & DILR Gandhinagar

Thank You! -Himanshu Dalwadi