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.
The train was at times inexpensive to operate.
( z1 cheap :polarity - :ARG1 ( z2 operate :ARG1 ( z3 train ) ) :frequency ( z4 at-times ) )