This book offers an in-depth exploration of sustainable and resilient solutions for existing urban public transit systems, addressing current challenges related to mobility needs, air quality, and the user experience. Sustainability and resilience play crucial roles in today's urban public transit systems, promoting greener transportation while ensuring that functionality is regained after disruption. The book takes a holistic approach and combines the different aspects of urban transit systems, blending theoretical frameworks with practical insights, and showcasing a range of case studies from around the world of successful implementation of resilient and sustainable transportation practices. Key themes include performance-based development and management, strategic recommendations for enhancing transit resilience, and an insightful analysis of the economic, environmental, and social pillars of sustainable urban transit. Emerging technologies, the integration of renewable energy (such as transportation electrification), and innovative policy and governance models are also thoroughly examined, offering readers a forward-looking perspective on the future of urban mobility. This serves as a reference book for urban public transit system operators, planners and researchers.