A high-integrity auto-guidance and control method for use in conjunction with an electric taxi drive system for maneuvering an aircraft, comprising: at an auto control processor comprising a first and second pairs of parallel processors, the first pair comprising first and second processors and the second pair comprising third and fourth processors: receiving user input that is taxi path data comprising an initial path for the aircraft; and processing, at each of processors, the taxi path data with influencing input from one or more of: sensor data sources, a datalink subsystem, and a source of neighboring aircraft status data, to generate therefrom a taxi path, and taxi path guidance and control information for the taxi path; selecting, in accordance with a predetermined priority scheme, an optimum auto-guidance path, defined as a taxi path and taxi path guidance and control information, from at least one of the processors; and commanding a switch control, an auto brake switch control, and an auto nose wheel adapter of the electric taxi drive system based on the selected taxi path guidance and control information. at an auto control processor comprising a first and second pairs of parallel processors, the first pair comprising first and second processors and the second pair comprising third and fourth processors: receiving user input that is taxi path data comprising an initial path for the aircraft; and processing, at each of processors, the taxi path data with influencing input from one or more of: sensor data sources, a datalink subsystem, and a source of neighboring aircraft status data, to generate therefrom a taxi path, and taxi path guidance and control information for the taxi path; selecting, in accordance with a predetermined priority scheme, an optimum auto-guidance path, defined as a taxi path and taxi path guidance and control information, from at least one of the processors; and commanding a switch control, an auto brake switch control, and an auto nose wheel adapter of the electric taxi drive system based on the selected taxi path guidance and control information. receiving user input that is taxi path data comprising an initial path for the aircraft; and processing, at each of processors, the taxi path data with influencing input from one or more of: sensor data sources, a datalink subsystem, and a source of neighboring aircraft status data, to generate therefrom a taxi path, and taxi path guidance and control information for the taxi path; selecting, in accordance with a predetermined priority scheme, an optimum auto-guidance path, defined as a taxi path and taxi path guidance and control information, from at least one of the processors; and commanding a switch control, an auto brake switch control, and an auto nose wheel adapter of the electric taxi drive system based on the selected taxi path guidance and control information. selecting, in accordance with a predetermined priority scheme, an optimum auto-guidance path, defined as a taxi path and taxi path guidance and control information, from at least one of the processors; and commanding a switch control, an auto brake switch control, and an auto nose wheel adapter of the electric taxi drive system based on the selected taxi path guidance and control information.