How many seconds of warning is provided by a Traffic Advisory (TA)?

How many seconds of warning is provided by a Traffic Advisory (TA)?

• A. 20 seconds
• B. 30 seconds
• C. 40 seconds
• D. 50 seconds

Answer: (C)

Traffic Advisory timing is about giving pilots a predictable lead to assess and respond to potential conflicts. A TA provides roughly 40 seconds of warning before the projected closest approach with another aircraft. This window strikes a balance: it gives enough time to scan, confirm the situation, and plan any mild adjustments or communication, while not being so far out that the advisory becomes overly cautious or confusing. A TA is advisory, not a command like a Resolution Advisory, which requires immediate action. Shorter warnings such as 20 or 30 seconds would leave too little time for safe assessment and planning, while a longer 50-second window isn’t the standard operational interval for a TA. So the typical TA warning is about 40 seconds.

Traffic Advisory timing is about giving pilots a predictable lead to assess and respond to potential conflicts. A TA provides roughly 40 seconds of warning before the projected closest approach with another aircraft. This window strikes a balance: it gives enough time to scan, confirm the situation, and plan any mild adjustments or communication, while not being so far out that the advisory becomes overly cautious or confusing. A TA is advisory, not a command like a Resolution Advisory, which requires immediate action. Shorter warnings such as 20 or 30 seconds would leave too little time for safe assessment and planning, while a longer 50-second window isn’t the standard operational interval for a TA. So the typical TA warning is about 40 seconds.