agricultural agriculture brown cultivate cultivation earth farm field food furrows grow parallel perspective plough ploughed Soil stones tractor bucket caterpillar digger digging excavator hydraulic industrial machine machinery mechanical piston power scoop track vehicle bulldozer cab clear Clearance hopper maintenance manage norway norwegian red snow tracks wheels advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful cars caution cautious communicating communication concern conditions danger dangerous directions informing Look looking lookout observant risk risks road-conditions road-risks rural safety sign signs slippage slippery slow slow-down speed speed-reduction tractors traffic vehicles warning warning-sign watch watch-out cold cross crossing Devon England Great Britain landscape meadow snowy uk winter wintry activity equipment forest lifter loader shovel transportation trees truck wood work agrimotor drive road security street traction-engine travel yellow baby boy bridge car child childhood children game imagination kindergarten little nursery play playschool preschool pretend primary simple small toy wheel wooden 4x4 all atv auto cutout Dirt isolated Mud offroad quad ride seat sport terrain transport traver