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A coroner warned cyclists of the danger of ignoring red lights after finding this caused the death of a young woman at the notorious Bow roundabout.

Mary Hassell spoke out after hearing from police that Venera Minakhmetova “most likely” cycled through a red light prior to being killed instantly under the wheels of a HGV loaded with concrete.

Ms Minakhmetova, 24, a Russian computer consultant living in Bethnal Green, became the third cyclist to die at the roundabout in two years when she was struck about 8.40am on November 13 last year.

Recording a verdict of death by road traffic collision, Ms Hassell told Poplar coroner’s court yesterday: “I conclude that the fundamental cause of this collision was Venera going through a red light.”

She said many cyclists went through red lights but did not suffer the same “devastating consequences” by “virtue of luck”.

Ms Hassell said: “It’s important that I’m open and honest about the cause of this collision, for no other reason that other cyclists need to understand what dangerous behaviour contravening a red light is, and that there are potentially devastating consequences.”

She said she had “nothing useful” to say to Transport for London as the roundabout had since “been altered to such an extent that it’s very significantly safer for cyclists”.

However Ms Minakhmetova’s sister Dina, who attended court with her mother and aunt, told BBC London afterwards that she doubted she would have jumped the lights. “She was always suspicious about this roundabout... When Venera went there it wasn’t safe,” she said.

Collision investigator PC Michael Andrews told the inquest that Ms Minakhmetova was most likely to have ridden in the cycle lane, on the tipper lorry’s left, as she approached the roundabout westbound from Stratford.

He said: “Venera must have come down his side at some point to get in front of him. Therefore, and assuming Venera has used the cycle lane, I believe it’s most likely she has contravened the red traffic light.”

TfL had remodelled the roundabout and installed separate traffic lights for cyclists to give them an “early start” ahead of other traffic following the death of Brian Dorling and Svitlana Tereschenko in 2011.

Mayor Boris Johnson had opened an extension of the CS2 cycle superhighway linking Stratford and Bow roundabout a week before Ms Minakhmetova’s death. She was the 12th of 14 cyclists killed last year - and the fourth of six in a fortnight - provoking an outcry over road safety.

The HGV had been turning left towards the Blackwall tunnel after collecting rubble from a site in Stratford. It is thought Ms Minakhmetova was going straight on towards central London.

HGV driver Mark Stoker said he had not seen any cyclists in the bike lane, or in the advance stop area 17 metres ahead, as he waited at traffic lights.

GPS and tachograph data from his vehicle showed he was travelling at 13mph at the time of the collision. He told the inquest: “I was three-quarters of the way round and then I just heard a metal noise and stopped straight away and realised what had happened.”

The vehicle was fitted with sensors to detect cyclists alongside, had an audible warning telling road users when it is turning left, and was fitted with warning stickers telling cyclists to stay back, he said.

However PC Andrews said the warning may not have been audible to Ms Minakhmetova due to noise at the junction.