right away

The locomotive was the now inevitable American 2-8-0, No. 2623. There she stood, effectively blocking the level crossing, simmering gently, massively inert. It was almost dark, and one's final sight was of her high, firelit cab, the enginemen nonchalantly leaning out, waiting for the right-away, while impatient road convoys piled up on both sides of the crossing.

1945 January and February, “Notes and News: American Locomotives in France”, in Railway Magazine, page 46

As we stood waiting for the departure time with the setting sun twinkling on the great brass dome of our 2-4-0, the sound of church bells was the only one apart from the measured tread of the guard slowly pacing towards his van, and, standing at an open window, I more than once heard the fireman's "Right away!" to his mate in acknowledgement of a desultory wave of the unfurled green flag.

1955 January, R. S. McNaught, “From the Severn to the Mersey by Great Western”, in Railway Magazine, page 19