Ravi Shankar
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Grid vs ground for a large public works project

Started this discussion. Last reply by Ravi Shankar 6 hours ago. 4 Replies

Hi Team I need your advice on the "one step transformation" process for creating ground coordinates from grid coordinatesOur project area is a 260 km long proposed railway line corridor. The proposed…Read more →

I just Joined!

Started this discussion. Last reply by Ravi Shankar on Sunday. 4 Replies

Hi everybody,I am Ravi Shankar  from India. IndiaFor the past 9 years I am doing survey and mapping related projects in India and Middle East. Prior to 2009 I was working as a GIS engineer in…Read more →

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Ravi Shankar replied to Ravi Shankar's discussion Grid vs ground for a large public works project
"Team  Many thanks for the reply. I wish to clarify a bit more on why the process I mentioned was followed.  There are two different survey teams in the project. One team did the railway corridor alignment design - It includes…"
6 hours ago
⚡Survenator⌁ favorited Ravi Shankar's discussion Grid vs ground for a large public works project
16 hours ago
⚡Survenator⌁ favorited Ravi Shankar's discussion I just Joined!
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Ravi Shankar's discussion was featured

Grid vs ground for a large public works project

Hi Team I need your advice on the "one step transformation" process for creating ground coordinates from grid coordinatesOur project area is a 260 km long proposed railway line corridor. The proposed railway corridor needs to be designed after doing the detailed topographical surveyThe first step followed is : Established 85 pairs of control points (say GPS1 to GPS 85) along the corridor using DGPS.Second step: Convert the control point LLH (Lat,Lon,Ht) to grid coordinates (XYZ) based on UTM…See More
19 hours ago
J. Anthony Cavell replied to Ravi Shankar's discussion Grid vs ground for a large public works project
"Dear Mr. Shankar, You describe a project with several issues to be addressed. The project is long (260 Km) and narrow. (Horizontal control will probably be OK vertical will be suspect.) You plan to record the survey data in UTM, which has high…"
yesterday
Simeon Hill replied to Ravi Shankar's discussion Grid vs ground for a large public works project
"My suggestion is that you establish one base control point using your Ground Control Coords. Then localize on that point. Set your datum as WGS84 then carry out your survey. All your observations will be stored with Ground Control Coords. Using…"
yesterday
CHARLIE B. AYCOCK, III replied to Ravi Shankar's discussion Grid vs ground for a large public works project
"Very interesting question. I am not prepared to comment off the top of my head but the problems are not unlike what is involved in highway construction. Various State Highway departments have published information on this, Texas as an example.…"
yesterday
Ravi Shankar posted a discussion

Grid vs ground for a large public works project

Hi Team I need your advice on the "one step transformation" process for creating ground coordinates from grid coordinatesOur project area is a 260 km long proposed railway line corridor. The proposed railway corridor needs to be designed after doing the detailed topographical surveyThe first step followed is : Established 85 pairs of control points (say GPS1 to GPS 85) along the corridor using DGPS.Second step: Convert the control point LLH (Lat,Lon,Ht) to grid coordinates (XYZ) based on UTM…See More
Wednesday
Ravi Shankar commented on Jaybird's group Leica Support Group
"Hi Leica Support Team  I need your advice on the "one step transformation" process for creating ground coordinates from grid coordinates Our project area is a 260 km long proposed railway line corridor. The proposed railway corridor…"
Wednesday
Ravi Shankar joined Jaybird's group
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This group is for LSU members who use Leica Instruments in the field. This group is for discussions and tutorials related to Leica user.LSU is not directly affiliated with Leica and all logos and imagery are copyright of their respective owners.See More
Wednesday
Ravi Shankar is on spot light
Sunday
Billy Brooks left a comment for Ravi Shankar
"Hi Ravi,  I have another good friend from India,Raymond  Kingsly. I do not know if you know him,but thanks for wanting to be my friend. I am sure we will talk more in the future. best regards, billy"
Sunday
Billy Brooks and Ravi Shankar are now friends
Sunday
Ravi Shankar replied to Ravi Shankar's discussion I just Joined!
"Thanks Muhammad. I started a discussion thread regarding railway alignment survey.  Look forward to your comments Thanks"
Sunday
Ravi Shankar replied to Ravi Shankar's discussion I just Joined!
"Thanks Survenator. I am currently doing projects related to Transmission line survey, Railway Alignment survey, and cadastral mapping. I started a discussion on the Railway Alignment design and survey procedure. Please do share your…"
Sunday
Ravi Shankar posted a discussion

Regarding Railway Alignment design and survey procedure

DGPS_Station_Coord.xlsxQuestion for the experts:During Railway alignment and topographical survey for 260km long rail corridor , I came across a process where a survey company followed the below procedure1. Established DGPS Stations every 5 km using whole to part concept. Total of 85 control point pairs have been…See More
Sunday

Profile Information

I am here because I am a.
Surveyor
Surveyor Bio:
Experience Nov 2012-Present Geotrax International Services FZB, Ras Al Khaimah
(UAE)
General Manager - Roles
 Lead Survey & GIS projects in UAE
 As lead survey manager responsible for planning and monitoring
survey activities, ensuring proper execution of works on site as
per specification and coordinate with the client.
Dec 2009-Nov 2012 Geotrax International Services, Hyderabad.
Technical Director (Roles)
 Lead GIS Engineer
 Project lead for establishment of Ground Control Network in the
NLRMP projects in Gujarat. Managed more than 30 teams
conducting the establishment of Ground control network
 Project lead for DGPS surveys of Mining lease areas in Odisha,
for Orissa Space Application Centre.
 Project Advisor for GIS basemap preparation for Dhalai District,
Tripura, India.
August 2001-Dec 2009 Intergraph Corp (Security, Government and
Infrastructure Division) Huntsville, AL
At Intergraph - Senior Software Engineer
 Senior lead for planning, design GIS software test environments
 Certified and Tested Core and Industry GIS/AM/FM Products.
 Lead Spatial Database Administrator (Oracle and SQL Sever) - Store and
Manage spatial data from multiple data sources.
 Provided increased support/Analysis to customer problems. Act as an
interface between Development and Customer for reporting customer
requirements.
 Suggested design changes and appropriate ways to implement the
products.
 Experience with working on GIS products suite and Solutions from
Intergraph, and ESRI. The list includes
1. GeoMedia Professional: Product for management of enterprise
geospatial data. Add-on products in the GeoMedia suite include
1994-1998 College Of Forestry, University of Agricultural
Sciences, Dharwad, Karnataka, India.
BS Forestry GPA 9.1/10.0
Computer Skills Operating System: IBM PC,Sun SPARC,UNIX, Windows 2000/NT/9x.
Programming Languages: JAVA, SmallTalk, C++, Visual Basic, VB.Net
GIS Softwares: Geomedia suite, G/Technology, Intergraph’s CAD based
Security Suite (primarily GeoSpatial Monitor), Arc GIS Desktop suite-
ArcView, ArcInfo, ArcEditor.
Databases: Oracle 10g (includes Oracle Spatial), Oracle 9i, SQL Sever
2005.
Interests Playing Tennis: Local tennis leagues
Company
Geotrax International Services
Licenses Certifications or Awards
GIS software developer
I have experience with the following
GPS, cadastral, topographic, boundary surveys, topographic surveys, control network surveys, GIS, Software Development, Aerial, UAS/UAV Drone Technology
How many years have you been surveying?
9
Most comfortable with the following types of instrumentation
GPS, Surveying Software, GNSS

Comment Wall (1 comment)

At 1:23pm on July 15, 2018, Billy Brooks said…

Hi Ravi,

 I have another good friend from India,Raymond  Kingsly. I do not know if you know him,but thanks for wanting to be my friend. I am sure we will talk more in the future.

best regards,

billy

 
 
 

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