construction construction machinery construction people construction site crane crew heavy duty heavy objects HSE lifting machines mobile crane operating people at work safety safety precaution supervising working abstract background beautiful beauty black blue cloud clouds color colorful day horizon landscape nature orange outdoor purple rain red scene season silhouette sky spring storm sumer summer sun sunny sunset travel white black-on-white communicating communication direction directional gray grey indication law left-turn no-alternative only pointer pointing reflective sign signs specific street-sign traffic traffic-flow traffic-sign vehicles vehicular wording angles arms connected connections danger dangerous electricity electricity-power-grid elevated elevation external height heights high insulators New on-high perspectives power power-lines power-pole raised renewed replaced risks risky service street-light wires wiring animal autumn bitch breed canine countryside dog english flood flooded friendly fur girl grass gundog leaves love Mud muddy pedigree pet play portrait puppy purebred river rocks ruby rural spaniel splash spots spotty springer stream trees trust valley walk walking water wet winter