One moment, she was checking to make sure her train was on time, and the next, she was on the ground wondering what had happened.
Alison, 24, has been identified as the woman who was struck in the head by a chunk of concrete last Thursday evening, at Union Station.
She was released from hospital that night, but is still suffering the effects of post-concussion syndrome.
Her lawyer has told NEWSTALK 1010, they plan to sue.
"The lawsuit will be against the City of Toronto, as well as Metrolinx who would administer that area." says Nainesh Kotak.
He says they haven't yet figured out a dollar amount for the suit, because the extend of the victims injuries aren't yet known.
"As a precaution, in cases like these, we generally sue for more than a million. But it doesn't mean the case is worth that much. We have to look at the long-term effect on her." says Kotak.
According to her lawyer, that long-term effect could be significant.
Not only did she recently start a full-time position in downtown Toronto, but she's also a military reservist, and holds another part-time job.
Due to the injuries, her lawyer says she's been unable to leave home much and continues to be sensitive to light, suffers from vomitting, an inability to concentrate and is in pain.
But Kotak says someone needs to be held responsible.
"Clearly there's negligence here, this is not an act of God. An act of God would be lightening or a hurricane or something like that."
The City and Metrolinx will be put on notice in the coming days and Kotak says there is usually an attempt to try and respolve the case before it goes to court.