Riyadh Metro, or Riyadh Train, is a rapid transit system serving the residents of Riyadh , the capital of the Kingdom of Saudi Arabia . It forms the backbone of the city's public transport system. The execution of this project is overseen by the Royal Commission for Riyadh City . It is one of three mass transit systems operating throughout the week. It was inaugurated by the Custodian of the Two Holy Mosques, King Salman bin Abdulaziz Al Saud, on November 27, 2024. His Royal Highness Cro...