I was told that it was impossible to do because even though we had the rolling stock, we did not have the ability to deal with a union that had the opportunity to charge double time, triple time and all kinds of things on a train that was going across the country for two or three days.
At times, the train's schedule would be delayed.
( z1 delay :ARG1 ( z2 schedule :ARG1 ( z3 train ) ) :frequency ( z4 at-times ) )