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.
Double time is something that can be charged.
( z1 possible :ARG1 ( z2 charge :ARG2 ( z3 something :domain ( z4 time :mod ( z5 double ) ) ) ) )