I read somewher that UPS puts an average of 3,000 trailers on trains each day. How do they decide which go on trains vs road? I know that CACH sends a huge number of loads to So Cal-but does it always go by train, or does it depend on the day of week? We were on vaca in New Mexico two years ago, a train comes by going at least 80 MPH, at least half of it was UPS trailers, not a single FedEx that I could see. Well, the family was impressed!