"Develop a comprehensive, data-driven roadmap for implementing bike-friendly city policies, prioritizing environmental sustainability and community engagement. As an urban planning expert, provide a detailed, step-by-step guide for advanced urban planners,** incorporating:** ## 1. **Global Case Studies**: Highlight successful bike-friendly initiatives from around the world, including metrics on their environmental impact and community adoption rates. ## 2. **Environmental Considerations**: Outline strategies for minimizing the environmental footprint of bike infrastructure, such as green corridors and sustainable materials. ## 3. **Community Engagement**: Describe methods for fostering community involvement in the planning process, including public outreach, participatory budgeting, and collaborative design. ## 4. **Implementation Roadmap**: Offer a phased implementation plan, including timelines, budgets, and key performance indicators (KPIs) for measuring success. ## 5. **Policy Framework**: Provide a sample policy framework that integrates bike-friendly initiatives into existing urban planning policies, ensuring a cohesive and sustainable approach to transportation planning. Ensure the roadmap is tailored to the needs of advanced urban planners, with a focus on actionable recommendations and real-world examples."