The Islamic Republic of Iran Railways(abbreviated IRIR or sometimes RAI)(Persian: Rāhāhane Jomhuriye Eslamiye Irān) is the national state-owned railway system of Iran.The Raja Passenger Train Company is an associate of the IR,[1]and manages its passenger trains.The Railway Transportation Company is an associate of the IR to manage its freight transport.The Ministry of Roads & Urban Development is the state agency that oversees the IRIR. Some 33 million tons of goods and 29 million passengers are transported annually by the rail transportation network, accounting for 9 percent and 11 percent of the whole transportations in Iran (2011).[2]