HI-RAIL VEHICLE A32 OPERATING SOUTHBOUND STRUCK A MOTOR VEHICLE AT THE MERRITT STREET GRADE CROSSING, MP 780.12. THE MOTOR VEHICLE DROVE AROUND ANOTHER MOTOR VEHICLE AND DISREGARDED THE ACTIVE WARNING SYSTEM AND GATES. THERE WAS DAMAGE TO HI-RAIL VEHICLE AND MOTOR VEHICLE. THERE WERE NO INURIES TO THE CREW OR OCCUPANTS OF THE MOTOR VEHICLE.