Croydon tram crash – what caused the derailment, where exactly did the tram overturn and what do we know about the driver?
SEVEN people died and 51 people were injured when a tram came off the rails in south London on November 9 2016.
The driver of the tram was arrested after the horror crash which left several passengers trapped in the wreckage and more than 50 in hospital and since the crash, at least three traims have been caught speeding on the same line.
The two-car vehicle toppled over as it went into a tunnel near the Sandilands tram stop, near East Croydon.
The driver, Alfred Dorris, was arrested by police on suspicion of manslaughter and bailed until May.
He was suspended from driving over the incident, which took place during the early morning rush hour on November 9.
A shocking video has since emerged showing another tram driver sleeping at the wheel on the same section of track as the tragedy and four drivers have admitted they fell asleep while driving a tram through Croydon.
How many were killed and injured in the Croydon tram crash?
Police have confirmed that seven people lost their lives in the tram crash - six men and one woman.
Among those to have died were mother-of-two Dorota Rynkiewicz, 35, teenage Crystal Palace fan Dane Chinnery, 19, and 57-year-old grandfather Phil Seary.
Young dad Mark Smith, 35, who was engaged to be married, was also killed.
Three other grandads died: Donald Collett, 62, Phil Logan, 52, and Robert Huxley, 63.
London Ambulance Service said 51 people had been taken to St George's Hospital in Tooting, south London, and Croydon University Hospital.
What caused the derailment at Croydon?
The Rail Accident Investigation Branch has been investigating the crash, which happened as the tram entered a tunnel near the Sandilands tram stop, east Croydon.
An interim report found that the tram was speeding at 43.5 mph in a 12 mph zone when it overturned.
Now a further report revealed the driver had "lost awareness" in the seconds before the crash.
It also revealed a sign warning of the 13mph speed limit were not clearly visible until 120m before the corner - but drivers should apply the brakes 180m before the bend.
The "readability" of the sign is likely to have been reduced by heavy rain at the time of the crash, the RAIB noted.
The report added: "There was no sign to indicate to drivers where they should begin to apply the brake for the Sandilands curve; they were expected to know this from their knowledge of the route."
Experts found the driver had only applied the brake two and half seconds before reaching the sign, reducing the from 49mph to 46mph as he passed it.
The hazard brake had not been used, the report found.
It added: "The late application of the brakes and absence of emergency braking suggests that the driver had lost awareness that he was approaching the tight left-hand curve."
Police are investigating whether the driver was using his mobile phone just before the crash.
Who uses this tram line?
London's only tram network operates in the south of the capital, from Wimbledon to Beckenham Junction, Elmers End and New Addington, via Croydon.
More than 27 million passengers used the service in 2015/16.
The system uses a combination of on-street and segregated running for the 17 miles (27km) of track.
Are tram crashes common?
Tram crashes are very rare indeed.
The Croydon derailment is believed to be the first tram crash involving fatalities on board in the UK since 1959.
Back then, two women passengers and the driver were killed after a tram caught fire in Glasgow following a collision with a lorry.
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