What are the main advantages of AIS compared to radar?

What are the main advantages of AIS compared to radar?

• A. It is more effective in rough weather
• B. It does not suffer from clutter and "line-of-sight" issues
• C. It has unlimited range capabilities
• D. It is always accurate

Answer: (B)

The main advantages of AIS (Automatic Identification System) compared to radar lie in its ability to provide clear, straightforward tracking information without the limitations often associated with radar systems. One of the significant benefits is that AIS does not suffer from clutter, which can obscure relevant targets. Radar systems can struggle in congested environments or in conditions where natural or artificial objects disrupt the detection of vessels, whereas AIS broadcasts the position and other information directly from vessels equipped with the system. This self-reporting nature allows for a more reliable identification of vessels in the vicinity. Additionally, AIS operates via VHF radio waves, enabling it to function effectively beyond the limitations of "line-of-sight" that often constrain radar systems, particularly in hilly or obstructed areas. This reliability in providing accurate vessel data enhances situational awareness for mariners. While the other advantages offered by AIS — such as unlimited range capabilities and constant accuracy — may seem appealing, they do not entirely capture the practical benefit of AIS over radar, especially when factoring in the environmental conditions that can affect radar performance. Therefore, the ability of AIS to provide clear information without being hindered by clutter or visibility issues is crucial in the context of safe navigation.

The main advantages of AIS (Automatic Identification System) compared to radar lie in its ability to provide clear, straightforward tracking information without the limitations often associated with radar systems. One of the significant benefits is that AIS does not suffer from clutter, which can obscure relevant targets. Radar systems can struggle in congested environments or in conditions where natural or artificial objects disrupt the detection of vessels, whereas AIS broadcasts the position and other information directly from vessels equipped with the system. This self-reporting nature allows for a more reliable identification of vessels in the vicinity.

Additionally, AIS operates via VHF radio waves, enabling it to function effectively beyond the limitations of "line-of-sight" that often constrain radar systems, particularly in hilly or obstructed areas. This reliability in providing accurate vessel data enhances situational awareness for mariners.

While the other advantages offered by AIS — such as unlimited range capabilities and constant accuracy — may seem appealing, they do not entirely capture the practical benefit of AIS over radar, especially when factoring in the environmental conditions that can affect radar performance. Therefore, the ability of AIS to provide clear information without being hindered by clutter or visibility issues is crucial in the context of safe navigation.