As in the past, National Survey Day was organized by The Institution of Engineers (India) Telangana State Centre (TSC) and GeoMap Society (GEMS), Hyderabad on 10 April 2019 at “Visvesvaraya Bhavan”, Khairatabad, Hyderabad
Survey Quiz was conducted in which about 80 students from four engineering colleges took part.
The programmed began with invocation song Vandemataram followed by lighting of lamp. Er T ANJAIAH, FIE Hon. Secretary, IEI, TSC in his welcome address, explained the importance of Surveying and the role of Instn. of Engineers in observing Survey Day every year.
Dr G Rameshwar Rao, FIE Chairman, IEI, TSC in his opening remarks brought out the importance of 10 April, the day in 1802 when first accurate base was measured at Chennai. He explained about the importance of surveying in various aspects of life and in particular in civil engineering projects. He shared his experience of projects of Metro Water Works as a civil engineer.
Er G S KUMAR President, GEMS, conducted Survey Quiz with five selected questions as below one by one(PPP) with limited time for each question.
Maj Dr. G.Shiva Kiran and Mr. Rakesh Bhatnagar evaluated the answer sheets.
The team of Shadan College of Engineering & Technoloy, Hyderabad emerged topper. When there was a tie for third position, Dr Shiva Kiran asked “What are the latitude and longitude values of this place?” MGIT
GS Oberoi
teams came second and third ( Prizes sponsored by Mr. GS Oberoi, Retd Direcor, Survey of India)
Prize winning teams are:s
First Prize
MA Kashif & Mohd Faiza
Shadan College of Engineering & Technoloy, Hyderabad
Second Prize
M.Aravind & Nityanand Sai, Mahatma Gandhi Institute of Technology, Hyderabad (MGIT)
Third Prize
L.Chaitanya & N.Sireesha, Mahatma Gandhi Institute of Technology, Hyderabad (MGIT)
Highlights of discussions on the five questions are covered here.
Question 1. Accuracy of distance measured from SOI map of scale 1:50,000
(a) 5 metres (b) 12.5 metres (c) one metre
Correct answer is (b).
Maj Gen Dr.R. Siva Kumar explained the concept of one-fourth millimeter of the scale as the limiting factor for accuracy. On 1:25,000 accuracy, for example, expected accuracy is 6.25 metres which is ¼ mm of 1:25,000 scale map.
Question 2. Resolution of Cartosat2 Imagery
(a)15 metres (b) 5 metres (c) one metre
Correct answer is (c).
Prof IV Dr I V Muralikrishna, briefly outlined how India evolved from 1972 (80 metres resolution) to present one metre resolution of Cartosat 2.
Question 3. Height accuracy of leveling
(a) 0.002m (b) 0.01 m (c) 0.1 m
Correct answer is (a).
Mr. KK Pappan commented that accuracy of leveling is related to the lengths. He referred to the formula 0.25 of distance (Km).
Question 4. Accuracy of survey depends on
(a)Terrain (b) Instruments (c) Ground control points
Correct answer is (c).
Mr. KK Pappan commented that accuracy depends on all the three factors.
Question 5. Survey of India completed topo survey of India first time using
(a) Chain survey (b) Plane Table (c) Theodoloite
Correct answer is (b).
Mr. Murali Mohan, ex-scientist, ISRO and Photogrammetry expert elaborated on the concept of accuracy and pixel size in image based mapping. Dr.V.Raghava swamy enlightened the students and others about different types of resolution in imagery. He commented that Cartosat 2 imgery with one metre resolution is good for mapping on scale 1:10,000.
Dr G Rameshwar Rao shared some informative aspects related to alignment surveying and posed some questions about better accuracies using latest technologies in Surveying & Mapping. Impressed by the interest by the participants and also considering he developments in Surveying & Mapping, he proposed holding 2-day conference on “Digital Technologies in Surveying & Mapping” in October 2019.
Then came the much awaited address of chief guest Prof IV Dr I V Muralikrishna on “Artificial Intelligence and Surveying Technology”. His address, interestingly presented, rich in ideas and technological aspects, was listened by all with great interest. Highlights from his presentation:
· New technologies are add-ons and not replacements to traditional methods. Basics are not changed.
· SoI maps have limitations in accuracy. We need to use new technologies for improving standards.
· Machine learning is very important in the current situation
· Artificial Intelligence (AI) is useful for many mapping products like Terrain modeling, quality control, field productivity, etc..
· Digital Elevation Model (DEM) is an example of integration of technologies, the present need for efficient solutions.
· AI and surveying knowledge is useful for engineering students of all disciplines.
· Use of technology should lead to smart solutions.
· Data Mining, Research, Big data, 3D mapping , Analytics etc need to be focused
· Dealing with “Gaps and Limitations”, he spoke about predictive analytics from Imagery.
· He exhorted all to use technology innovatively. He quoted Texla – an example of Mobile system on road.
· He spoke of “Four System” – Clarity; Ideation; Develop and Implement” as an approach to the use of technology.
Dr M V Venkateswara Rao, Committee member, IEI, Hyderabad, in his vote of thanks covered various aspects including his own experience of how surveying helped resolve a critical situation in valuation by obtaining correct values of area. He thanked all the experts, students and others for active participation. Programme came to end with :” Jana gana mana…” It was around 1:15 pm and Lunch was arranged for all.
After being part of the National Survey Day Programme on 10 April 2019, I have no hesitation to say that
*Speeches and Quiz with discussions at the programme were enriching.
* Surveying as a Spatial Data Capture Technology has emerged as the most efficient “IT based Integrated Planning, Management, Implementation and Monitoring System” - GS Kumar