Commuters travelling to and from Sheffield are facing a day of rail travel chaos on Monday as a result of planned industrial action.
The RMT union has announced a day of strikes following a dispute over plans to bring in more driver-only-operated (DOO) trains.
Sheffield commuters travelling on any Northern services are likely to face disruption after the operator said that it will only run around 40 per cent of its normal timetables.
Northern has warned that all services will be "extremely busy" and customers have been advised to give themselves extra time to travel and consider whether their journey is necessary.
Sheffield services to and from Leeds will be affected by the strike as well as journeys from Sheffield to Hull and Sheffield to Retford Low Level.
Only 12 services will run from Sheffield towards Leeds, with the first at 7.18 arriving at 8.19 and the last at 17.50 arriving an hour later.
Commuters travelling from Leeds to Sheffield will also only be able to travel on 12 services; starting at 7.40 arriving an hour later with the last at 18.06 and arriving in Sheffield at 19.03.
There will also be 12 services from Hull to Sheffield, starting at 6.41 and arriving at 8.33 with the last leaving at 18.57 and arriving at 20.17.
Only 11 services will run from Sheffield to Hull with the first train leaving at 05.29 and arriving at 7.18 and the final train leaving at 16.41 and arriving in Sheffield at 18.11.
The first of six trains to Retford Low Level will start at 6.44 from Sheffield, arriving at 7.25 and the last at 14.44 arriving in Retford at 15.25.
Commuters travelling from Retford Low Level towards Sheffield can catch the first of six trains at 7.40 arriving at 8.24 with the last at 16.02 arriving at 16.49.
Northern will also be running around 300 extra rail replacement bus services in some areas that will not have rail services as a result of the revised timetable.
Sharon Keith, Regional Director for Northern, said: “Earlier this week we announced we would be able to run approximately 980 rail services on the day of the industrial action. After further planning we will also be able to operate around 300 extra rail replacement buses.
“Our aim is to deliver a public transport service for as many people as possible on Monday as we know Northern plays a key role in keeping the north of England moving.
“We expect all services, rail and bus, to be extremely busy and ask for customers’ patience on Monday. We would also ask customers to take time to consider whether journeys are necessary and, if they are, to plan carefully.
“As with the rail timetable, we have focused our planning efforts on providing a service between 7am and 7pm. And we have sought to provide an additional transport option for customers on the busiest routes that did not benefit from a rail service in the revised timetable.”