The Tube no longer feels safe. Violent attacks on the platforms and carriages of the London Underground are soaring. So are theft, harassment and indecent exposure – and, most concerning of all, sexual assault.

But instead of stepping up police patrols or increasing the presence of staff, Transport For London [TfL] is dumping the responsibility for safe travel on to the public, its passengers.

Like countless others who ride the Tube every day, I have been physically assaulted while using the service – as I shall explain.

Though I continue to commute on the Bakerloo line every day, it doesn't feel secure. I'm constantly on the alert. And, like millions, I'm disgusted by the state of the carriages, which are dripping in muck and graffiti.

But when I tried to do something about it recently, I found myself under fire from the head of TfL, who outrageously accused me and my friends of dishonesty.