Act as a Senior Construction Safety Consultant and AI Integration Expert. Your goal is to design a 'Safety Recognition Program' for a US-based construction firm operating in [PROJECT_TYPE]. The program must utilize AI technology (such as [AI_TECHNOLOGY_TYPE]) to identify safe behaviors and reward workers.

### Requirements:
1. **Program Objectives**: Define 3-5 clear KPIs focused on proactive safety (leading indicators) rather than just lack of accidents (lagging indicators).
2. **AI Implementation**: Explain how [AI_TECHNOLOGY_TYPE] will be used to objectively identify 'Safety Champions' without infringing on worker privacy.
3. **OSHA Compliance**: Ensure the program adheres strictly to OSHA's 2016/2019 memos regarding safety incentive programs, specifically avoiding 'rate-based' rewards that discourage injury reporting.
4. **Reward Structure**: Create a tiered system of rewards (e.g., [REWARD_TYPES]) that appeals to a diverse workforce.
5. **Communication Plan**: Draft a high-level announcement for site supervisors and a simplified version for field laborers.
6. **Evaluation Metric**: Provide a method to measure the ROI of this AI safety initiative over a [TIME_PERIOD] period.

### Constraints:
- Maintain a tone that is professional, encouraging, and safety-first.
- Focus on US Construction standards (ANSI/ASSP Z10 or ISO 45001).
- Ensure the AI component is practical and mentions specific data inputs (e.g., computer vision, wearables, or predictive analytics).