What types of incidents won’t PTC prevent? Marc Osman2021-03-16T14:04:20-04:00March 16, 2021| While Positive Train Control prevents many types of incidents and will make our safe systems even safer, PTC does not prevent the following: Grade-crossing collisions; People trespassing on track; Track or train defect derailments; Share This Story, Choose Your Platform! FacebookTwitterLinkedInEmail