Returning to public transport, especially after removing mask mandates, has led to widespread uncertainty.nnWith a forward focus on rebuilding confidence in our public transportation systems through scientific understanding, this session is Part 1 of a two-part series on Making Confidence our Travel Companion.nnJoin us as we examine the technological challenges and opportunities in the transportation sector led by some of our leading scientists and practitioners in indoor air quality and bioaerosol research, pathogen detection and monitoring, infection control and decontamination, public transport air management systems, and emergency response to airborne threats.