An electronic signal on the main Sydney to Melbourne rail line

Size: 2592px × 3872px
Photo credit: © Phillip Minnis / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: communication, device, display, electric, green, indicator, light, line, management, post, railroad, railway, safety, show, sign, signal, steel, technology, traffic, train, transportation, travel