A five-day strike on the Southern Rail network has started on 8 August, which will see 40% of normal services cancelled for the majority of the week. Southern and the Rail, Maritime and Transport Workers union (RMT) are involved in a dispute over the role of conductors.

Talks to try to reach an agreement at the Advisory, Conciliation and Arbitration Service (Acas) failed last week, the RMT union said. The walkout is the longest of its kind in the UK for decades, and will cause unprecedented disruption to Southern passengers who have already suffered disruption for months.

60%: Of normal services will run during the train strike.

Five: Days of services will be disrupted because of the walkout.

165 million: Number of passenger journeys served by Southern annually.

350 trains: Trains cancelled per day in an emergency timetable introduced in July 2016.

39 conductors: Average number of Southern conductors calling in sick each day during the dispute, according to the company's chief executive.

0: Number of times the Southern's 7.29am Brighton to London Victoria service arrived on time in 2014.

47 million: Passenger journeys on Southern pass through London Bridge.

156: Number of stations managed by Southern.

600,000: Passenger journeys are made every day on average.

414: Miles of track on the Southern network.

2001: Southern began providing train services.

2015: Southern and Gatwick Express join Great Northern and Thameslink to operate under one company, Govia Thameslink Railway.