Public transportation began with horse-drawn carriages, followed by steam trains.Electric trams revolutionized urban-center transportation, and electric trains revolutionized commuter rail services.The rise of the automobile led to the popularization of buses as an integral part of public transportation.High-speed trains provided unparalleled speed, safety, and capacity.The 21st century ushered in a renewed focus on electric and hybrid public transportation.Light Rail Transit (LRT) emerged as a cost-effective alternative to subways.The latest frontier in public transportation technology is the development of autonomous vehicles (AVs).Each stage of public transportation built upon the strengths and limitations of its predecessors.The evolution of public transportation highlights the ongoing quest to balance efficiency, sustainability, and accessibility.As cities continue to grow and technology advances, public transit will continue to adapt, meeting the needs of an increasingly interconnected world.