The strike will affect services from around 4am and also night bus services operating on the Tuesday night into Wednesday morning.
Bus services during the day on Wednesday 14th January are expected to operate as normal.
All of TfL’s other public transport services will be operating as normal should the strike go ahead.
Commuters can check for bus arrival times using the Countdown next bus arrival service online, on their mobile devices or via TfL's SMS text service.
Travel alerts will be provided through Twitter on @TfL and @TfLBusAlerts – using the hashtag #BusStrike
Extra staff will on duty across the network and at key locations to provide advice to passengers.
Where services are affected by the strike, TfL is urging passengers to use other transport options, or to walk or cycle where possible. Some people may want to consider working from home if possible. The average bus journey is around 2.2 miles so many of these journeys could be made in this way.
London's cycle hire scheme, with 10,000 bikes at over 700 docking stations, will continue to be available although demand is likely to be high – additional staff will be in place to re-distribute cycles to where they are needed most.
On the River, the Thames Clipper will operate additional services on RB1 River Bus services, that operate between Woolwich and Embankment pier, during the morning peak 6am to 10am and evening peak 4.30pm to 7.30pm.
The following ticket acceptance arrangements will apply:- Bus & Tram Pass season ticket, 11-15 Zip Oyster photocard or 16+ Zip Oyster photocard with free bus & tram travel will be accepted on Tube, DLR and London Overground services on reasonable routes only. Passengers should show their Oyster card to a member of staff and ask to be let through the gates. Customers should not touch in or out as they will be charged a PAYG fare, which will not be refunded.
- Bus & Tram Pass season tickets will also be accepted on MBNA Thames Clipper RB1 River Bus service between 6am - 10am and 4.30pm - 7.30pm.
- Bus & Tram Pass season ticket will not be accepted on National Rail services or the Emirates Air Line.
- One Day Bus & Tram Passes will not be accepted on any alternative services and refunds will not be given.
- PAYG and contactless users will be charged the appropriate fare for the journey for the service(s) and zones used and these fares will not be refunded.
The bus companies likely to be affected by the bus strike are:
Abellio (Abellio London and Abellio West London)
Arriva (Arriva North and Arriva South)
CT Plus (Hackney Community Transport)
Go Ahead (Blue Triangle, Docklands, London General, London Central, Metrobus)
Metroline (Metroline and Metroline West)
Stagecoach (East London Bus & Coach Company, Selkent)