Union Pacific Train Crewman interview questions

Applied online. Was notified to take a reading comprehension test online, and when it was completed it, received immediate notification I had passed. About two weeks later, was invited to a Hiring Session. Arrived 45 minutes early, and wasn't the first one, and the girl from HR was already setting up. There were 18 guys there. Most, like me, wore a dress shirt and pants, and a tie. Lots of information about the company, then the job. The Hiring Manager came and talked more about the job, unusual schedule, odd hours, etc. Everyone was then given a chance to go out and contact spouse, significant other, etc., regarding whether to go on with the process. Interviews were scheduled which let you know how long your had before yours. Mine lasted about 15 minutes and most of the questions were already mentioned on this website. Safety is the BIG thing!! Hence the question, "Who is responsible for safety?"