angry apocalypse apocalyptic awesome beams beautiful black breaking through bright cloud clouds color colour concepts contrast creation danger dark darkening disturbing dramatic foreboding frightening glory golden heavenly inspiring light lighting moody natural nature radiant radiating rays shining signs skies sky spreading storm storm front stormy sun sunlight threatening thunder thunderhead wild alert avoid barricade barrier build caution cone construct construction direction drive equipment forbidden highway line marker marking object obstacle orange orientation pavement plastic red reflective repair road roadworks safety security sign signal site speed stop street striped stripes symbol traffic transportation travel under construction urban warning way white work 3-D appropriate-behavior appropriate-behaviour area attention banned cigarettes communicating communication directive distinctive environment eye-catching glassy health health-risk location no-smoking not-allowed not-permitted permission-denied pollution prohibited prohibition raised style surface surfaces surfacing tactile texture textured textures thick thin unhealthy wording words aid assistance availability blanket contained directions emergency fire fire-blanket fire-extinguishing fire-retardant fire-safety-item flame-proof flame-resistant folded heat-minimization help helpful instructions messages non-flammable-blanket oxygen-depriving prepared prevention protection quick-release-contraption readiness ready safety-device smother storage stored tag usage wall wrap wrap-around lettering semi-transparent surfaced blowing over blue colors colours sky blue flood floods golf course stream water blank man men transit working man