This open access book provides a comprehensive exploration of mobility society through the lens of traffic safety technologies and social systems. It consolidates the collective wisdom of experts from diverse academic disciplines, including natural, social, and cultural sciences. The book introduces approaches that account for the heterogeneity of mobility within society, attributable to the ongoing yet uneven global increase in motorized transportation, which exacerbates disparities in daily mobility and access to life opportunities between developed and developing nations, as well as between metropolitan and rural areas. To address such needs, the book establishes a study of traffic and safety sciences based on scientific evidence, rooted in area-specific situations, and seeks interdisciplinary and practical knowledge. The chapters cover critical topics such as urban transportation, land use, environmental impacts of transportation, public transport systems, traffic engineering, and advanced vehicle safety technologies. Furthermore, it provides expert analysis of traffic-related psychology and behaviors, emergency medical care systems, and accident prevention measures. This volume also addresses the relationship between environmental issues and traffic, offering perspectives on establishing eco-friendly low-carbon societies and preparing for socio-environmental changes. Researchers in the fields of traffic safety, urban planning, environmental science, and public policy will find this book invaluable. It is also essential reading for practitioners involved in transportation engineering, emergency medical services, and policymaking. Linked to the 50th Anniversary Symposium of The International Association of Traffic and Safety Sciences (IATSS), this volume offers holistic perspectives on creating safer, resilient, and sustainable mobility societies. Rather than exhaustively presenting professional opinions for each field, the book aims to transcend disciplinary boundaries in a cross-sectional manner, intending to help readers learn about traffic and safety sciences from a multifaceted perspective. The translation was done with the help of artificial intelligence. A subsequent human revision was done primarily in terms of content.