appearance diesel engine equipment locomotive machinery marshalling-yard mobility motion move moving power rails railway railway-yard restoration restoration-yard strength cargo container factory forklift freight handling industry lifting loader loading machine storehouse transportation truck unloading vehicle warehouse build built cable construction crane development heavy high hook industrial lift metal steel transport urban depot magazine stack stock store storeroom chains gears heavy-duty machines repair repair-work repairs trains advice alert announcement appropriate-behavior appropriate-behaviour aware awareness be-careful beware black care careful caution communicating communication concern danger dangerous directions informing listen Look looking lookout moving-machinery observant rain rain-drops red risk risks safety sign signs trams warning warning-sign watch watch-out work workplace yellow greyscale steel-cable cartage check checked checking clean cleaned coated colors colours haulage movement painted powerful silver wheels abstract art bolted circular cogs colored coloured component components connected connections decorative distinctive electrical electronic-component electronics exposed fixed gadgetry green grunge hard inside internal linked links moving-parts open opened part parts perspectives product psychedelic-colors psychedelic-colours round screws surface surfaces technology teeth circuit coil coiled coils disconnected essential magnetic magneto-coil wired wires wiring