The Ramal ("Spur"; Spanish pronunciation: [raˈmal]) or LÃnea R (Line R) of the Madrid Metro is a shuttle train connecting the stations of Ópera and PrÃncipe PÃo. It is located in the Centro district of Madrid, Spain. It is currently the only line in the system to be known by a letter instead of a number, and its name refers to its origins as a branch of Line 2. The line consists of 1.092 km (0.679 mi) of wide-profile tunnels, and its stations have 60-metre (200 ft) platforms.
The Ramal starts at Ópera station in the Plaza de Isabel II, passes under the Plaza de Oriente and the gardens of the Royal Palace of Madrid, and ends at PrÃncipe PÃo station. Since the Ramal consists of only two stations, it has only two trains, which pass at the halfway point between the stations. At Ópera, there is only one platform; at PrÃncipe PÃo, there are two platforms, but one is used for train storage. The Ramal uses 4-car CAF Series 3000 trains.
