TIRE SEPARATED FROM RIM CAUSING SUDDEN AIR LOSS. OCCURRED ON PARKWAY EXIT LEADING TO LOSS OF CONTROL OF VEHICLE WHICH SAID HELLO TO A GUARD RAIL. VEHICLE DAMAGE. ASSUMED IT WAS MY FAULT UNTIL IT OCCURRED THREE OTHER TIMES, FOUR TOTAL, ON THREE DIFFERENT VEHICLES WITH THREE DIFFERENT GENERAL TIRE MODELS ON THREE DIFFERENT TYPES OF WHEELS. *TR