TfL (Transport for London) is warning Teddington commuters to check before they travel as RMT (Rail, Maritime and Transport Workers) union members plan strike action this weekend.

The walkouts, due to take place between Friday, 5 September and Thursday 11 September, will heavily affect the London Underground, with TfL saying there could be "little to no service" across all Tube lines on some days.

Timeline:

• Friday, 5 and Saturday, 6 September – No impact expected.
• Sunday, 7 September – Limited Tube services, closing early. All journeys should be completed by 6pm.
• Monday, 8 to Thursday, 11 September – Little or no service on the Underground. Any trains that do run will start after 8am.
• Tuesday, 9 and Thursday, 11 September – No service on the DLR.
• Friday, 12 September – No service before 8am, with a good service expected by late morning.

Other services, including the Elizabeth line, London Overground and London Trams, are expected to run but will be extremely busy.

Bus routes may also face disruption due to separate strike action by First Bus from 11–14 September, affecting parts of west, north west and south west London.

TfL announced today (Friday, 5 September) that it is urging the RMT union to suspend its planned strike action and put TfL's fair, affordable pay offer to its members.

It added that it is is "working hard to resolve the dispute, but if it goes ahead, customers are urged to check before they travel ahead of the planned strike action - with TfL operating as many services as possible".

According to TfL, the dispute centres around the RMT's demands for a shorter working week. London Underground staff currently work 35-hour weeks, and the RMT has made clear it will only accept a deal that sees a reduction in working hours.

However, TfL says "any reduction in working hours is impractical and absolutely unaffordable, with costs that could run into the hundreds of millions of pounds".

TfL has also offered to engage with the RMT and its other unions about managing fatigue across London Underground, with several options discussed.

However, the RMT has made clear that it believes a reduction in time at work is the only way to deal with this issue, including as little as a 30-minute reduction in the working week.

Aside from the financial concerns, TfL does not believe that reducing the working day by six minutes will make an appreciable difference to fatigue and urges the RMT to work with it on things that could make a tangible difference to staff.

TfL says it "has made a fair offer of a 3.4 per cent pay increase for all London Underground staff, in line with February RPI". This follows pay rises in previous years that have seen pay increase by around 25 per cent since 2020.

The RMT launched its ballot before TfL had made any offer and achieved a 57.5 per cent mandate for strike action. TfL is therefore urging the union to put the full offer to its members, so that they can have their say.

Claire Mann, TfL's Chief Operating Officer, said: "We call on the RMT to suspend this action, put our fair and affordable offer to their members and continue discussions with us.

"Our pay deal is in line with other offers accepted by the RMT across the rail industry, so it is disappointing the RMT is planning to disrupt Londoners without giving their members a say on the offer.

"We remain open for discussions about any part of our offer, and we are committed to making sure our colleagues are treated fairly.

"We welcome further engagement from all of our unions about managing fatigue across the network, but a reduction in the contractual 35-hour working week is neither practical nor affordable.

"If this strike action goes ahead, customers should check before they travel, as on some days during the strike there will be little to no service."

Find out more information and Tube schedules  here.