| 摘要 |
A method for navigation system modifies a route to the destination by allowing a user to select a type of items or conditions to be avoided from the route. The method includes the steps of displaying a set of data indicating items that a user will encounter when the user follows the calculated route, prompting the user to select a type of the item to be avoided in a new route to the destination, and recalculating the new route according to the user's selection and guiding the user to the destination through the new route. The navigation system displays the set of items which is classified into distance ranges each representing a range of distance from a current user position where each item is represented by a corresponding icon.
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