Karen Mallette was riding RTD’s R Line to work in the Denver Tech Center in January 2019 when her train sped through a sharp ...

The workers — who include welders, assemblers and electricians, among others — represent a majority of the 2,500 employees at the factory that makes locomotives, rail cars and light rail trains.

The wig wag train features technology that is designed to improve train visibility and passenger safety along the at-grade ...