GPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation.

Question

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.

1. A. I, II and III
2. B. II and III only
3. C. I only
4. D. I and II only (Correct answer)

Correct Answer

Option D — I and II only

Detailed Solution & Explanation

The correct answer is I and II only.

Key Points

• GAGAN (GPS-Aided Geo Augmented Navigation) is a Satellite Based Augmentation System (SBAS) developed jointly by ISRO and Airports Authority of India.
• It provides additional accuracy, availability, and integrity to GPS signals over the Indian region — Statement I correct.
• It enables uniform, high-quality air traffic management — Statement II correct.
• However, GAGAN's benefits extend beyond aviation to road, rail, and maritime navigation as well — Statement III claiming aviation-only benefits is incorrect.