In 2012, the End Violence Against Women coalition published a poll showing the extent of women's fear of travelling on London Transport. RMT issued a press release, including a quote from Janine, which you can read here.
Janine Booth, who represents London Transport workers on RMT’s national executive, said, “TfL’s policy of stripping staffing levels to the bare minimum has left many women, and some men, afraid to travel. We have millions of jobless people looking for work, and important work that needs to be done making our transport safe and accessible. TfL and London Underground should create jobs and increase staffing.”
The TUC's 'Risks' e-bulletin 550, 12 April 2012, also covered this issue.