Traffic lane dividers

Claim 1

A ROAD DIVIDER ADAPTED TO PRODUCE AN AUDIBLE SOUND WHEN THE TIRE OF A VEHICLE PASSES THEREOVER, SAID DIVIDER COMPRISING A PLURALITY OF SPACED VERTICAL EXTENDING LONGITUDINAL RAILS, A PLURALITY OF SEPARATE CROSSBARS EACH HAVING INVERTED L-SHAPED CUTOUTS AT THEIR ENDS ENGAGING SAID LONGITUDINAL RAILS AND PERMANENTLY SECURED THERETO, SAID CROSSBARS EACH HAVING A CENTRAL SLOT FACING DOWNWARDLY, A SEPARATE LONGITUDINALLY EXTENDING MEDIAN BAR HAVING SPACED SLOTS OPENING UPWARDLY ADAPTED FOR ENGAGEMENT WITH THE SLOTS OF SAID CROSSBARS AND PERMANENTLY SECURED THERETO, SAID CROSSBARS EACH HAVING A CENTRAL HORIZONTAL SUBSTANTIALLY FLAT TOP PORTION AND OUTWARDLY AND DOWNWARDLY GRADUALLY SLOPING OPPOSITE SUBSTANTIALLY FLAT TOP PORTIONS SO CONSTRUCTED AND ARRANGED THAT AN AUDIBLE SOUND WILL BE PRODUCED BY THE PASSAGE OF THE TIRE THEREOVER WITHOUT PUNCTURING SAID TIRE, SAID LONGITUDINAL RAILS EACH HAVING A HEIGHT GREATER THAN THE FULL HEIGHT OF THE CROSSBARS AND EXTENDING A DISTANCE SUBSTANTIALLY BELOW THE BOTTOM PLANE OF THE CROSSBARS, THE TOP PORTIONS OF SAID CROSSBARS EXTENDING ABOVE THE TOP PLANE OF THE HORIZONTAL RAILS WITH THE CENTRAL HORIZONTAL SUBSTANTIALLY FLAT TOP PORTIONS OF SAID CROSSBARS PROJECTING ABOVE THE LONGITUDINAL MEDIAN BAR AND COMPRISING THE UPPERMOST PORTIONS OF THE ROAD DIVIDER.