18. A computer-readable storage medium containing instructions for controlling a computer system to receive, determine, and display an airport taxi route for a vehicle, by a method 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 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 a first matching route component corresponding to the first substring; determining 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.
18. A computer-readable storage medium containing instructions for controlling a computer system to receive, determine, and display an airport taxi route for a vehicle, by a method 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 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 a first matching route component corresponding to the first substring; determining 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. 24. The computer-readable storage medium of claim 18 , wherein displaying the airport taxi route comprises displaying an airport map and graphically displaying the airport taxi route on the airport map.