A trusted accident avoidance control system supported on a vehicle operable to travel a path, and comprising at least first and second location determination components operable to estimate a current position of the vehicle. An error correction component can receive the estimated current position information from the first and second location determination components and determine an updated estimated current position of the vehicle based on these, wherein the error correction component can be operable with a path database to identify a predetermined threshold velocity for the updated estimated current position of the vehicle. A velocity management component can determine, based on the updated estimated current position, whether a current velocity of the vehicle exceeds the predetermined threshold velocity, and if so, initiate an accident avoidance measure. The trusted accident avoidance control system is self-contained to the vehicle, not relying on outside sources to generate any estimated current positions.