A rolling programme of national walkouts will take place between Friday 5 April and Monday 8 April, with different train companies affected on each day (see boxout below).
The union has been locked in a row with train companies over pay and working conditions for more than 18 months now.
As part of the latest round of industrial action, drivers will also refuse to work any overtime from Thursday 4 April to Saturday 6 April and from Monday 8 April to Tuesday 9 April.
Additionally, two 24-hour tube strikes have been announced for Monday 8 April and Saturday 4 May.
Mick Whelan, Aslef general secretary, said: “Last month, when we announced renewed mandates for industrial action, because under the Tories' draconian anti-union laws we have to ballot our members every six months, we called on the train companies, and the government, to come to the table for meaningful talks to negotiate a new pay deal for train drivers who have not had an increase in salary since 2019.
“Our members voted overwhelmingly - yet again - for strike action.”
The ongoing industrial action on the railways, which started in June 2022, has had a major impact on the hospitality sector, with UKHospitality previously estimating that the strikes have so far cost the sector in the region £4bn.
It has led to some businesses, including steakhouse group Hawksmoor, launching meal deals on strike days to encourage diners out.
April train strikes - which train company will be affected on what day?
Friday 5 April: Strikes will affect Avanti West Coast, East Midlands Railway, West Midlands Trains, and CrossCountry.
Saturday 6 April: Strikes will affect Chiltern, GWR, LNER, Northern, and TransPennine Trains.
Monday 8 April: Strikes will affect Greater Anglia, c2c, GTR Great Northern Thameslink, Southeastern, Southern/Gatwick Express, South Western Railway main line and depot drivers, and SWR Island Line.