The Mass Transit Railway or MTR (in Chinese, 香港鐵路有限公司, literally "Hong Kong Railway Company"; or 港鐵 for short) is the main rapid transit railway system in Hong Kong. Since the MTR service first opened in 1979, the network has grown to more than 150 stations. Built and run by MTR Corporation Limited, the MTR system is a very popular mode of public transport in Hong Kong, with around 2.46 million passengers riding each day.