1. A method performed by a computing system for receiving, determining, and displaying an airport taxi route for a vehicle navigating within an airport, the computing system having a processor and memory, comprising: receiving an input text string representing at least a portion of the airport taxi route from a text input component on board the vehicle, the input text string having multiple text characters; parsing, by the computing system, a first substring and a second substring from the input text string, the first substring and the second substring each having at least one text character; determining, by the computing system, a first matching route component corresponding to the first substring; determining, by the computing system, a second matching route component corresponding to the second substring; adding the first matching route component and the second matching route component to the airport taxi route; and displaying the airport taxi route on a display device on board the vehicle.