set of public road sign in blue color with a capital white letters s, t, u in the center of black background

attention background billboard black blue board capital caution center choice city clear color concepts construction copy course crossroad danger decision design detail direction directional dirty drive empty frame grunge guidance guide guidepost hazard highway icon ideas industrial information intersection isolated journey letter limit notice object old plastic pole post public road roadsign safety set shape sign signal space speed stop striped suburb symbol texture town traffic transport travel two urban vehicle vintage wall warning way white worn