A method for announcing content information in a navigation system, wherein the content information relates to non guidance direction instructions. The method comprises the step of receiving route information, the route information comprising a plurality of route segments that constitute a route from a start point to an end point, each route segment having an estimated time period for completion. The method also comprises the step of receiving content information which is to be announced. It is determined whether one or more of the route segments comprises an estimated time period for completion which is above a threshold value, and, if so, allocating such route segments as silent route segments. Content information is announced in one or more of the determined silent route segments.