asphalt barrel build building bulldozer construction digger excavator lay machines road roller steam work avenue brasil brasilia brazil city information man metropolis orientation plate signal street stretch traffic transit urban way concrete constructing gray industrial outdoor outside pavement paving promenade tile tiles workplace cutout isolated machine path pathed vehicle caterpillar dig not ready track diesel flat flaten worker ahead blue germany pole post posts red sign signpost signposts signs sky steel sundtraffic warning white