Five out of six lines of the Metro do Porto share a joint route between Estádio do Dragão and Senhora da Hora. This route runs from east via the centre to the north-west of the city over a distance of almost 10 km and has a total of 14 stations/stops: Estádio do Dragão – Campamhã – Heroismo – Campo 24 de Agosto – Bolhão – Trindade – Lapa – Carolina Michalis – Casa da Música – Francos – Ramalde – Viso – Sete Bicas – Senhora da Hora.
At Estádio do Dragão is the stadium of FC Porto with the same name. Between Estádio do Dragão and Campanhã the line is parallel to the railway and partly covered by a concrete structure carrying a highway. Campanhã is the main railway station of Porto. From Campanhã the line is in a 2.3 km long tunnel with three intermediates stations: Heroismo – Campo 24 de Agosto – Bolhão.
The line comes to surface again at Trindade on the location where once the terminus was of the narrow gauge railways. Trindade is the hub of the system as here crosses the only line not using the joint route. From Trindade the route of the former narrow gauge railway is used. While the narrow gauge railway had four intermediate stops between Trindade and Senhora da Hora, the MP has seven intermediate stations/stops on this part: Lapa – Carolina Michaelis – Casa da Música – Francos – Ramalde – Viso – Sete Bicas.
Tha Casa da Música station is near Boavista on the location of the former Avenida da França stop of the narrow gauge railway. In the future Casa da Música will become a second hub as line G comes into service.
The joint route is part of the lines A, B, C, E and F, although not all lines use or have always used the whole route. Over the years the usage was changed with time-table changes.
Opening dates: 7 December 2002 Trindade – Senhora da Hora (6.1 km) as part of the opening of line A to Senhor de Matosinhos 6 June 2004 Estádio do Dragão – Trindade (3.8 km) Travel times from Estádio do Dragão are 3′ to Campanhã, 9′ to Trindade and 22′ to Senhora da Hora.