RAIL services in and out of stations across Somerset will be severely disrupted between Tuesday and Saturday next week (June 21-25), GWR is warning.
A significantly reduced timetable will be in place due to planned industrial action by the RMT union across the industry.
A GWR spokesperson said: "Only travel by rail if necessary.
"If you do travel, expect severe disruption and plan ahead.
"Services will start later and finish earlier throughout the strike period."
On strike days, an extremely limited service will operate between 7.30am and 6.30pm. On non-strike days, no services will run before 7am.
The spokesperson added: "GWR will operate as many trains as possible during the strike action.
"However, most train services will be affected on the days announced.
"Due to the timing of the strike action, services in between strike days will also be affected.
"Where we are able to run services, they are expected to be extremely busy.
"We are not able to provide bus replacement services."
On the days of strike action - June 21, 23 and 25 - GWR expects to be able to operate the following service level:
No rail services will be able to operate on strike days on the following routes:
all lines in Cornwall, including all branch lines;
all branch lines in Devon (Barnstaple, Exmouth, Paignton, Okehampton);
South Wales main line (Carmarthen/Swansea – Cardiff Central);
Heart of Wessex line (Castle Cary – Weymouth);
Severn Beach line (Bristol Temple Meads – Severn Beach);
North Cotswolds line (Hereford/Worcester – Oxford);
South Cotswolds line (Cheltenham – Swindon);
Worcester/Gloucester – Bristol;
Kennet Valley (Reading – Pewsey);
North Downs line (Reading – Gatwick Airport);
South Coast (Westbury – Southampton/Portsmouth Harbour);
Greenford branch line (Saturday 25 June only).
There will be an extremely limited service on other routes, and the advice to customers is to only travel if necessary.
On days when strike actions is not taking place, GWR expects to be able to operate the following reduced service:
TIMETABLE OF STRIKES NEXT WEEK.
Monday 20 June Non-strike day. Timetable publication date: Friday 17 June.
Tuesday 21 June Strike day. Timetable Friday 17 June.
Wednesday 22 June Non-strike day. Timetable Saturday 18 June.
Thursday 23 June Strike day. Timetable Friday 17 June.
Friday 24 June Non-strike day. Timetable Saturday 18 June.
Saturday 25 June Strike day. Timetable Wednesday 22 June.
Sunday 26 June Non-strike day. Timetable Wednesday 22 June.
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