Just visible through the haze of 66156's exhaust the driver of 320307 returns to his cab after contacting the signaller. It's fairly certain the reason for the delay became apparent before the call was completed.
Location: Cumbernauld
Original line: Caledonian Railway
Photographer: Malcolm Chattwood
Contact photographer: Malcolm Chattwood
Date: 05/03/2015
Image number: 50739