advice alert announcement be-careful beware black care careful cars caution cautious communicating communication conditions danger dangerous information informing large-vehicles look-out observant red risk risks road-conditions road-train rural-area safety semi-trailers sign signage slow-down speed speed-reduction symbol text traffic trailers transport transportation trucking trucks vehicles warning warning-sign watch watch-out white words abbreviated abolished brief charges clear clipped communicate cost-by-number-of-words Delivered delivery document ended hand-delivered lettering message messenger now-obsolete once-common paper plain-language post-office postal-confirmation pre-digital pre-private-telephones printed-telegraph-message receiving-sending recipient replaced sender short shorthand succinct telegram telegram-style telegramme telegraph-style telegraphic-style unambiguous written Envelope envelopes transparent-display-window colorful colors colourful colours aid assistance availability casualties casualty-care cross directions emergency emergency-care fatality-reduction first-aid first-aid-procedures harm-reduction help helpful immediate-assistance initial-treatment injuries injury international-symbols life-preservation life-saving location medical-attention minimising-pain one-time-treatment prepared protection providing-emergency-help readiness ready recovery red-cross rescue safety-response short-term-treatment signs symbols treatment white-on-green-cross wording abstract adult art background banner beauty binary blue business business office businessman businessmen businesswoman cell color colour commerce commercial company computer computers conference confidence crowd culture data design elite employee event female friends funky future graphic green greeting group group of business people group of peop[le group of workers grunge hired help human icon illustration investigation job leaders light lines lit looking male market marketing matrix men modern New night number occupation office office team outline people person persons posing poster power professional program programmers programming rainbow rech retro sale sci-fi science fiction secretary shadow shadows silhouette silhouettes staff style success suit team teamwork techno technology together urban vector web white silhouettes who is women work worker young house keyholder keys orange ring gadget pavement phone typing clean hole inside metal pattern rotating silver texture tumbler washing-machinem was