GPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation. Which of the following statements is/are correct in respect of GAGAN?
- I.It is designed to provide additional accuracy and integrity.
- II.It will allow more uniform and high quality air traffic management.
- III.It will provide benefits only in aviation but not in other modes of transportation.
Select the correct answer using the code given below.
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Answer: D. Statement I is correct: GAGAN improves the accuracy and integrity of GPS signals. Statement II is correct: it enables more uniform, high-quality air traffic management. Statement III is wrong: GAGAN also benefits rail, road, shipping, agriculture and disaster management. So I and II are correct.
Watch for: The word 'only' in Statement III is the giveaway.
Why the other options are wrong
- A. Statement III is wrong: GAGAN is used beyond aviation.
- B. Statement III is wrong.
- C. Statement II is also correct.
Source to check: ISRO and Airports Authority of India (AAI) GAGAN pages; PIB releases on GAGAN.
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.