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.
Detailed Explanation:
GAGAN (GPS-Aided Geo Augmented Navigation) is India's Satellite-Based Augmentation System (SBAS), jointly developed by ISRO and the Airports Authority of India (AAI) to improve GPS-based navigation.
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Statement I is Correct: GAGAN enhances the accuracy and integrity of GPS signals.
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Statement II is Correct: It enables safer, more efficient, and uniform air traffic management.
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Statement III is Incorrect: GAGAN is useful not only in aviation but also in road transport, railways, maritime navigation, agriculture, surveying, and disaster management.
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Therefore, only Statements I and II are correct, making Option D the correct answer.
Statement-wise Analysis
| Statement | Status | Explanation |
|---|---|---|
| I. It is designed to provide additional accuracy and integrity | ✅ Correct | GAGAN improves GPS precision and reliability for navigation. |
| II. It will allow more uniform and high-quality air traffic management | ✅ Correct | Better navigation helps improve flight safety and air traffic efficiency. |
| III. It will provide benefits only in aviation | ❌ Incorrect | Its applications extend to several non-aviation sectors as well. |
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