Rich,
If I really wanted to get the job done, I'd go with an automated rail freight system:
- using technology controlled trains; with no train crews or operator cabs, just powered units and rolling stock; that way, I'd hopefully have, significantly, less personnel issues to contend with...
but, for today's system- using manned equipment - safety is a MUST!
Years ago, when I was in my teens - there were seat belts available, in many automobiles; but, few of us ever wore them; we used to drink and drive, too.
At first, many people didn't like forced compliance(having to wear a seat belt); but, after awhile, they got used to it and I doubt many would stop wearing them, if the laws were changed.
Where I live, boaters mush comply with the current, new, safety regulations, too.
Why should a company have to pay a compensation claim, that could have been preventable?
BTW, all crash related injuries are not g- force based, i.e. - take any sturdy container you own, and put a whole raw egg(with the shell intact) inside the container, then seal the container. Now, drop the container from shoulder height, or roll it down a steep grade... I doubt you would expect the egg to be intact, after that experiment.
Head and cervical(neck) injuries are extremely common, where there's been some type of fall. Increased intracranial pressure require immediate medial attention...
http://en.wikipedia.org/wiki/Intracranial_pressure
Picture the two CN crew members tumbling about, unrestrained, banging into hard, sharp edges...
or your overweight 300lb. partner, landing on your head/neck, when you hit the bottom of a steep canyon...
Today's and tomorrow's safety equipment, and procedures... can, and will, help save workers lives, or they will help reduce the damage done...
It's a good thing that nature included some of us with foresight... and the will and discipline - to heed and act upon our insight. Some British researchers think this cognitive trait/ability, is an evolutionary advancement, for our species, i.e. - some of us have the ability to learn, without actually having to subject ourselves to the dangers of trial and error...
Rick