access-denied access-limited advice alert appropriate-behavior appropriate-behaviour ban banned be-careful beware bicycles-prohibited bylaws communicating communication concern cycling-prohibited danger dangerous denied directions information informing law legal no-bikes no-cycling no-wheels not-allowed not-permitted pedestrian-care pedestrian-safety permission-denied prohibited prohibition prohibitions restricted restriction restrictions risk risks rules safety sign signs symbol warning warning-sign watch watch-out advising apology avoid behavior behaviour black care caution communicate construction construction-site entry-denied entry-prohibited inconvenience inconvenient no-access no-entry risky yellow no-parking parking please polite red refusal request unacceptable verge white 3-D blue conditional conditions eye-catching glassy indication informative insiders limited-access liquidy no-public-access notification notifying plastic raised security semi-transparent staff staff-only words workers clear transparent automobiles cars closed dead-end end lettering letters limited message motor-vehicles no-thoroughfare no-through-road road roadway vehicles wording barbed wire barbwire clouds curl curve diagonal fence gate get off iron metal no access razor wire sharp sky stay away stay out access denied arch arched back-alley bricked in brickwork building city corrugated corrugated iron corrugations curved dark decay demolished deterioration disrepair doorstep doorways elements entrance exit exterior external grime ground-level nailed neglect old partially demolished building sealed urban decay eroded erosion hillside protect protection Soil subsidence weathered arrows denial directive keep-out no-vehicles parking-prohibited private private-property signage text