a detailed close-up of a yellow and black barricade

yellow iron blue number wood vehicle black wheel green font art light wall asphalt leaf tire soil red detailed close-up barricade barricade#39aph39#s contrasting colors bold lines create sense alertness visual impact detailed close-up yellow black barricade contrasting colors bold lines alertness visual impact pattern safety construction warning stripes hazard design texture urban caution structure barrier sign attention high-contrast graphic reflective warning-sign security strong imagery markings prominent safety-device vivid scene detail industrial striking visible emergency compliance risk alert notice symbol measure