The first of three planned bus strikes in London this month will take place tomorrow with commuters being warned they could face travel chaos.

Up to 27,000 bus drivers and other workers, all members of Unite union, will walk out as part of a long-running campaign for a single agreement covering their pay, terms and conditions.

The union said that in contrast to Tube drivers, there is no collective pay deal for bus drivers, with wages negotiated on a company by company basis.

There are more than 80 different pay rates covering drivers doing the same job, leading to differences in hourly rates of over £3, said Unite.

Transport for London slammed the action saying their demands ‘make no sense’ and the strike was ‘totally unnecessary’.

There will be limited services available on some routes but commuters are being urged to make alternative travel arrangements.

Thousands of commuters were affected by the first strike which took place last month.

The strike starts tomorrow at 4am until Friday morning.

The following routes, which serve parts of Brent, will NOT be affected and will run as normal:

• 142 - Watford Junction to Brent Cross Shopping Centre

• 303 - Edgware Station to Colindale

• 305 - Edgware Station to Kingsbury Circle

• 628 - Kingsbury to Southgate Station

• 653 - Muswell Hill Broadway to Kingsbury

• 683 - Friern Barnet to Kingsbury

• 688 - Southgate Station to Kingsbury

Holders of bus and tram pass season ticket, 11-15 Zip Oyster photocard or 16+ Zip Oyster photocard with free bus and tram travel will be allowed to use it on the Tube, DLR and London Overground services on reasonable routes only.

To use your pass show it to a member of staff and ask to be let through the gates.

Two further strikes are scheduled for next Friday (13) and Monday. February 16.