The large comprehensive urban network was formed in 1977 by merging separate rail lines by the construction of new tunnels under Liverpool city centre and Birkenhead. Although financial constraints have prevented some of the 1970s plans for the network being realised, the network has been extended, with additional extensions proposed.
The Merseyrail name became the official brand for the network in the days of British Rail, surviving several franchise holders, although the name was not used by Arriva when holding the franchise. Despite this, Merseytravel continued the Merseyrail branding at stations, allowing the name to be adopted colloquially. Merseyrail is referred to as "Merseyrail Electrics" by National Rail Enquiries, and as "Serco/Abellio Merseyrail" by Merseytravel.
|73||Electro-diesel locomotives||80||129||N/A||4||1962, 1965 – 1967|
|502||Electric Multiple unit||2 or 3||1939 - 1941|
|503||Electric Multiple Unit||65||101||3||43||1938 and 1956|
|507||Electric Multiple Unit||75||120||3||32||1978 - 80|
|508/1||Electric Multiple Unit||75||120||3||27||1979 - 80|