acceptable access-denied access-limited advice advising alert allocated allocation approved authorised authorized automobiles behave black carpark cars communicate communication denied directions directive entry-denied entry-prohibited information informing limited limited-parking motor-cars no-access no-entry not-allowed not-permitted parking permission-denied prohibited prohibition red restricted restriction restrictions safety sign special-parking unauthorised unauthorized vehicles warning white blue guests insiders message no-outsiders outsiders private private-property signage unacceptable vistors wording words danger hazard signs textures flood floods golf course stream water 2014 dangerous design medical vector virus website chock chocking electric electrical electricity fence grid high power secure security sundtech voltage wire camp-fire fire flame hexagon pictogram yellow rail railway track transport drive flag lead steer traffic ahead background curve curving pole post posts sharp signpost signposts sky triangle zag zig zigzag