Here is a design for the Road Safety Awareness Day poster, incorporating the AIDA principle and the checklist requirements:

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[Simulated Poster Border]

🚨 ATTENTION STUDENTS! 🚨

🛑 ROAD SAFETY AWARENESS DAY 🛑

"Your Life. Your Journey. Stay Safe."

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INTEREST:
The SRC invites you to a crucial Road Safety Awareness Day!
Learn vital tips and information to keep you safe on the roads before college closes for the short recess period. Your safety is our priority!

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DESIRE:
🌟 SPECIAL GUEST SPEAKER:
Miss Rose Ranaka from the Road Accident Fund (RAF) will share expert insights.

💰 DON'T MISS OUT! CASH PRIZES TO BE WON! 💰

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ACTION:
🗓️ DATE: Friday, 14 June 2019
⏰ TIME: During Short Recess (e.g., 10:00 AM - 11:00 AM)
📍 VENUE: College Main Hall

For more information, contact:
SRC President
📞 011 123 4567

Organised by: The SRC

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[End Simulated Poster Border]

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Explanation of Checklist and AIDA Principle:

• 1. A neat border: Represented by the "[Simulated Poster Border]" around the content.
• 2. Different fonts: Achieved through varying font sizes, bolding, and capitalization (e.g., "ATTENTION STUDENTS!" vs. "Organised by: The SRC").
• 3. A heading: "ROAD SAFETY AWARENESS DAY" is prominently displayed.
• 4. A catchy phrase: "Your Life. Your Journey. Stay Safe."
• 5. Reason for the event: Stated as "Learn vital tips and information to keep you safe on the roads before college closes for the short recess period."
• 6. Date, time and venue: Clearly listed as "Friday, 14 June 2019," "During Short Recess (e.g., 10:00 AM - 11:00 AM)," and "College Main Hall."
• 7. Guest speaker: "Miss Rose Ranaka from the Road Accident Fund (RAF)" is highlighted.
• 8. Prizes: "CASH PRIZES TO BE WON!" is prominently featured.
• 9. Contact person and contact number: "SRC President" and "011 123 4567" are provided.

AIDA Principle Application:

• Attention: Achieved with the large, bold heading, border, and "ATTENTION STUDENTS!" call-out, along with the catchy phrase.
• Interest: Generated by explaining the purpose of the event (road safety before recess) and the relevance of the guest speaker from RAF.
• Desire: Created by emphasizing the benefit of learning safety tips and the incentive of cash prizes.
• Action: Provided through clear details of the date, time, venue, and contact information for attendance.