Patent ID: 7533494

Claim:
A railroad grade crossing assembly for blocking access across a railroad crossing, comprising: gate means connectable to a stanchion and movable between a generally upright position to permit access across the railroad crossing and a generally horizontal position for blocking access across the railroad crossing; and telescopic arm means incorporated into said gate means for automatically closing and opening the railroad crossing in response to a signal, said telescopic arm means being movably incorporated within said gate means and being selectively operable according to said signal to extend from said gate means each time said crossing assembly is to block access across said crossing and retracts according to said signal each time said crossing assembly is to permit access across said crossing; and programmable electronic means responsive to at least one of selective gate operating parameters, and selective electrical signals, and provides in response thereto at least one output signal in response thereto to said gate means to programmably control at least one of a first gate position motion initiation in response to a second gate position, a gate position duration, a communication of diagnostic data, a communication of video data, an initiation of a failure condition, and the reception of electronic controller programming data.