Although the Cintura line connects the Azambuja line (at Braço de Prata) to the Cascais line (at Alcântara-Mar), the stretch between Alcântara-Terra and Alcântara-Mar is only used for freight services, and passengers transferring between both stations have to do so on foot.
Nowadays, the services from the Azambuja and Sintra lines are joined in a single timetable, as "Azambuja/Lisboa/Sintra".[5]
Since 2011, the Azambuja line has offered a direct connection between Azambuja and Alcântara-Terra, with an additional Castanheira–Santa Apolónia service during weekdays, a change that will be reversed with the Summer 2015 timetables, that reintroduce the older Azambuja–Santa Apolónia and Castanheira–Alcântara-Terra services.[6]
The Lisbon Cintura rail line, and its connections to the other North Lisbon urban lines
Map of the Porto network with the map of the Porto Metro
The CP Urban Services in the greater Porto area consists of 4 main lines, linking Porto Terminus São Bento Station (Estação de São Bento) in Porto Downtown with the cities of Braga, Guimarães, Aveiro and Penafiel. The lines are completely electrified and the service is efficient, serving over 24 million passengers in 2019.
The Commuter rail service in Porto is well connected with bus and metro service in the city, linking with lines A (Blue line), B (Red line), C (Green line), E (Violet Line) and F (Orange Line) of metro service in Campanhã Station and with line D (Yellow line) in São Bento Station.
A fifth line was inaugurated in September 2009, Leixões line, connecting Porto to Leixões.[7] This line closed again in 2011.
In 2018, a study was launched into a new 36.5 km rail line branching from Valongo on the Linha de Caide to Felgueiras, with an expectedly cost of €300 million.[8]
^CP, "Mapa das Linhas dos Comboios Urbanos do Porto" (Porto Urban Trains Lines Map) "Archived copy"(PDF). Archived from the original(PDF) on 30 October 2010. Retrieved 31 August 2010.((cite web)): CS1 maint: archived copy as title (link) (Portuguese) Retrieved 31 August 2010.
^CP, Lisbon Urban Service network map [1]. Retrieved 31 August 2010.
^CP, "Azambuja / Lisboa / Sintra – summary [timetable]" "Archived copy"(PDF). Archived from the original(PDF) on 11 October 2010. Retrieved 31 August 2010.((cite web)): CS1 maint: archived copy as title (link) (in Portuguese). Retrieved 31 August 2010.
^CP, "Azambuja / Lisboa / Sintra – summary [timetable]" [2]Archived 4 March 2016 at the Wayback Machine. Retrieved 6 June 2015.
^Expresso, "Transportes: Linha ferroviária de Leixões recebe comboios de passageiros a partir de Setembro" [3] (Portuguese) Retrieved on 31 August 2010.
