OASA, or the Athens Urban Transport Organization, is responsible for managing public transportation in Athens, Greece. It oversees various modes of transport, including buses, trolleys, and the metro system, ensuring efficient and reliable services for residents and visitors. OASA aims to improve urban mobility and reduce traffic congestion in the city. Founded in 1971, OASA plays a crucial role in the daily commute of millions. The organization focuses on enhancing the quality of public transport, implementing modern technologies, and promoting sustainable practices. By doing so, OASA contributes to a more accessible and environmentally friendly urban environment.