black black on white direction law no alternative one way one way signs only sign signs specific street signs white arrow black-on-white communicating communication directional gray grey indication no-alternative one-way one-way-signs pointer pointing reflective street-sign traffic traffic-flow traffic-sign blue forbidden one oneway pole post posts prohibit prohibited red signpost signposts sky sundtraffic warning way yellow arrows back color colors direction. down forward grunge icon icons pijl point position UP access advice announcement appearance declaration detail entrance entry informative informing lettering message notice notification surface surfaces welcome word baffle gate bags closed control covered exit faregate gate gates hooded hoods mass transit stations mass transit turnstiles movement control not used one-way people traffic passenger control passenger movement passengers pedestrian control railway station sealed turnstile turnstiles waist-high turnstiles divergent diverging splitting splitting-up turn turning two-way administration bumps chaos crazy danger driver fun funny glimpse limit limits mistake policemen roadsign roadsigns sleeping speed street artistic artwork brown coloration colored colour coloured contrast copper-art copper-work copperwork coppery craftsmanship decorative designed distinctive embossed embossing expressing expression eye-catching impressed information patterned patterns perspectives presentation raised surfaced surfacing symbolic tactile texture textured textures words left-turn vehicles vehicular wording