Public transit refers to shared transportation services that are available for use by the general public, such as buses, trains, subways, and trams. This mode of transportation is typically operated by government agencies or private companies and serves as a convenient and cost-effective option for individuals to travel within a city or region. Public transit plays a crucial role in reducing congestion, air pollution, and greenhouse gas emissions, as well as providing accessibility to those who may not have access to a private vehicle. Research in the field of public transit often focuses on improving efficiency, reliability, and accessibility of services, as well as exploring innovative technologies and strategies to enhance the overall transit experience for users.