Toys for Big Boys

Road construction sites are fascinating and this one at Raith is a perfect example with a bulldozer pushing soil one way and an excavator or two close by digging trenches. Nearby a piling screw digs its way down 15 metres, while a grader and road roller patiently await their turn to play in the sand.

How does it all work?

Does each man see the big picture or just the view from their own seat?