Sarah Cunningham, 31, was hit by a northbound Northern line train after stepping onto the track and walking down a tunnel at Chalk Farm station at about 3.30am on November 2 last year.
An inquest at Poplar Coroner’s Court heard from Ms Cunningham’s friends and family, who said she was looking forward to the future and was thriving in her career as an artist.
On the night of the incident, she had been out with a group in Camden, the BBC reported.
Witnesses said she was “drunk but not very drunk”.
Her father, Edward Cunningham, described her as “bubbly, friendly and very sharp,” as well as “kind, loving, silly and empathic”.
He added that she “found the natural world beautiful, she was a source of light and saw the world in a way others didn’t”.
Mr Cunningham insisted his daughter was not suicidal.
He acknowledged that in her early teens, she had a “low period driven by a break-up” and had two attempts to take her own life.
He said: “On one occasion she jumped out of a window and broke both of her ankles, on another she took some pills.
“They were cries for help – which she got.
“Ever since then, she has never tried to harm herself.”
A forensic toxicologist told the inquest that while it was not possible to determine the amounts of alcohol and drugs in her body, it was established that Ms Cunningham had used cocaine and ketamine before her death.
The inquest also heard from Dale Smith, from Transport for London (TfL), who said an internal investigation had been carried out and any recommendations made by the coroner would be “taken forward.”
Although Ms Cunningham had been seen by a member of TfL staff, she exhibited no behaviour that raised concerns.
The inquest was told a staff member checked the platform she was seen on and, as a train had just pulled away, assumed she had boarded it.
In fact, she had walked along the tracks and was in a tunnel when she was hit by a train.
Her body was discovered about 245ft (75m) into the tunnel just after 1.30am on November 4.
A tribute from her family described her as a “brilliant daughter and sister” who was “loved by so many.”
TfL said it was “deeply saddened” by the incident and extended its condolences to the family.
The coroner concluded that Ms Cunningham’s death was accidental.