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Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the octagon for the Stop sign and the crossbuck for railroad crossings.
No left turn. Regulatory signs “give a direction that must be obeyed.” [1] Often these signs show a content or action that is either mandatory or prohibited and these two modes are signified by colour (i.e. blue and red), orientation (i.e. a filled circle and an open circle with a diagonal line through the centre) and/or shape (i.e. a square and triangle).
Irish rural speed limit sign on a local road Sometimes similar signs have minor differences in meanings, following the local traffic codes. The United Kingdom's "pass either side" sign indicates that drivers may pass on either side of an obstacle, such as a traffic island , to reach the same destination.
Warning triangle in use near traffic collision site Warning triangle advising of construction. Except from this form, which is prescribed in road traffic, there are also collapsible signals or triangles, used by emergency services, but also for short road closures by other firms with workers in the road, perhaps gasworks or power plants ...
A road may be clear and free of snow, ice or black ice, lulling drivers into thinking they have nothing to fear. But when they cross a bridge or overpass, the surface can suddenly turn from steady ...
A highway shield or route marker is a sign denoting the route number of a highway, usually in the form of a symbolic shape with the route number enclosed. As the focus of the sign, the route number is usually the sign's largest element, with other items on the sign rendered in smaller sizes or contrasting colors.
Next time you’re in an airplane, scan the walls.
Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones . Later, signs with directional arms were introduced, for example the fingerposts in the United Kingdom and their wooden counterparts in Saxony .