a keep clear at all times warning strip sign sticked on the floor

clear times warn warning strips strip signs sign stick sticked adhered floor flooring top angle angles angled view caution cautioning safety safe yellow black diagonal diagonally diagonals line lines red bright vivid saturated vibrant color colour colors colours colored coloured sticker stickers elongate elongated long stripes stripe thin slim slender border borders bordering perimeter perimeters area restricted restrict cement concrete rough texture textured