"Jumper'. Seems to be the word to use.
Not a fluffy, woolly, jumper
or a long jumper.
But a jumper none the less.

You stood in the shelter on the platform.
Avoiding the rain like any sensible soul would.
You're shuffly, but seem normal. Another commuter
waiting for the next train.

The droning intonation crackles over the speaker:
"The next train does not stop here."
You don't stand back from the platform edge.
Stepping out into the rain (why is he getting wet? I wonder)

You calmly stroll towards the edge, brazenly crossing the yellow line.
The penny drops. So do you.
A casual step like going down a staircase.
A thud, a rushing train. You're gone.

Red stains the tracks.
As I frantically dial 999 I can't even see you beyond a few parts,
surely not parts of a human?
A jumper. Not a fluffy woolly jumper.

"The next train at platform 4 is delayed. Please stand by for further announcements.