Method for providing a message in a vehicle in order to inform a car driver about traffic-related events, involving: receiving and buffer-storing digitally coded traffic reports concerning traffic-related events, wherein each traffic report comprises information identifying the event and a length dimension of the event, and wherein at least one of the traffic reports is an update traffic report (report type) concerning the same event as a first previous traffic report; providing a time of day (time of day) for the received first traffic report of an event, which time of day displays the time of reception of the traffic report; storing a time stamp and the length dimension (content) for each received traffic report in a memory, wherein the time stamp for a first traffic report is the provided time of day and, for an update traffic report, is the time stamp (time of day) of the first received traffic report of the event, and wherein the length dimension is the length dimension of the received traffic report; when a traffic report concerning an event is output, deriving (a) a duration of the event based on the time stamp of the received traffic report of the event and the present time of day, and (b) a tendency displaying the change in the length dimension of the relevant event based on a comparison of the length dimension of the output traffic report and the length dimension of the previous traffic report concerning the event, and outputting a message containing the derived duration and tendency, together with the traffic report, by using a screen or loudspeaker of the vehicle. receiving and buffer-storing digitally coded traffic reports concerning traffic-related events, wherein each traffic report comprises information identifying the event and a length dimension of the event, and wherein at least one of the traffic reports is an update traffic report (report type) concerning the same event as a first previous traffic report; providing a time of day (time of day) for the received first traffic report of an event, which time of day displays the time of reception of the traffic report; storing a time stamp and the length dimension (content) for each received traffic report in a memory, wherein the time stamp for a first traffic report is the provided time of day and, for an update traffic report, is the time stamp (time of day) of the first received traffic report of the event, and wherein the length dimension is the length dimension of the received traffic report; when a traffic report concerning an event is output, deriving (a) a duration of the event based on the time stamp of the received traffic report of the event and the present time of day, and (b) a tendency displaying the change in the length dimension of the relevant event based on a comparison of the length dimension of the output traffic report and the length dimension of the previous traffic report concerning the event, and (a) a duration of the event based on the time stamp of the received traffic report of the event and the present time of day, and (b) a tendency displaying the change in the length dimension of the relevant event based on a comparison of the length dimension of the output traffic report and the length dimension of the previous traffic report concerning the event, and outputting a message containing the derived duration and tendency, together with the traffic report, by using a screen or loudspeaker of the vehicle.