Yellow Road Roller on a Gravel Worksite

Before diesel engines, road rollers ran on steam, which is why people still call them steamrollers. Many modern ones also vibrate the drum as they roll, shaking gravel down far tighter than the weight alone could. This compact yellow machine stands on a half-finished village road, its steel drum gray with dust. It's a road roller jigsaw puzzle that any young fan of construction machines will recognize on sight.