No! CTB'ing should be done ethically, without using anyone who does not wish to participate in it.
That train driver does not wish to be an instrument of your death, even if he's pro-choice like you. At best, you'll completely ruin his day. At worst, you'll give him PTSD for life. A lot of us have PTSD, and it's unethical to give it to another person when you don't need to. (Except for people in our lives, who would be collateral damage, to so speak.) As miserable as you may be, forcing someone to involuntarily help you CTB is as bad as the pro-lifers keeping you alive against your will.
There's one exception to the above: when a rail line runs in an open-cut trench, with overpasses above it. If a person falls (jumps) from an overpass onto the tracks below, right before a train is passes through, it gives the driver plausible deniability to himself. Namely, the jumper already died when they hit the tracks, and he simply hit a dead body with his train. If the line is grade-level, on an embankment, or on a trestle, and the CTB'er jumps in front of a moving train, the train driver has no plausible deniability! He's forced to be an instrument of your death against his will. We're an ethical community, and need to act like it.
Also, if a rail line is electric with an overhead pantograph, regardless of how it's physically positioned, I've read about people standing on tracks with bare feet and touching the overhead wires with a metal broomstick held in hand. Heck, it's how I wanted to CTB at one point, when I lived near such a line. (The wire voltage varies from line to line, but it's usually over 1000 V.) Grade-level lines are easiest to access, obviously. Then, when a train comes, its driver is not hitting a living person.
(I like trains, that's how I know so much about railroad operations.)
The "plausible deniability" principle isn't my invention; it's actually used in firing squad executions. (Only in US armed forces, except in Utah; civilian executions in other US states are done by lethal injection.) The firing squad members are told "a few of you have rifles loaded with blanks; we don't know who". This way, each member of the firing squad is able to tell himself that he had the blank-loaded rifle and "didn't really kill" the convicted criminal. It really helps in mitigating PTSD.
