a combination of diesel powered locomotives operating under the control of one engine-driver, coupled together consecutively, usually at the head end of the train, which further consists of wagons[?] or carriages.
... under the age of 18, 9.6% from 18 to 24, 30.3% from 25 to 44, 20.9% from 45 to 64, and 9.8% who are 65 years of age or older. The median age is 34 years. For every ...