He read a letter in which Union Pacific pledged to remove three of its 40 "tier 0" switchers, or railroad locomotives used to maneuver rail cars inside a rail yard, from the Roper Rail Yard in ...

The bill would apply only to switchers used in rail yards, where at least four operate. Union Pacific owns 45 of the 63 currently operating in Utah, mostly at the three rail yards on the Wasatch ...

Union Pacific conducted several field demonstrations on the GP20D before committing to the short-term lease with CIT Rail Resources. The 2,000 hp GP20D Electro-Motive road-switcher locomotives ...

UP has signed a contract with RailPower for 80 triple-genset and 18 twin-genset RP Series road switchers. "Our new low-emission yard and road locomotives are the next chapter in Union Pacific's ...