Abstract: An apparatus and method that can display traffic flow data in a vehicle. Current traffic flow data for a transportation link is obtained. The current traffic flow includes at least a current speed of the traffic traveling on the transportation link. Historical traffic flow data for the transportation link is also obtained. An indicium representative of traffic flow is selected based on the current traffic flow data and the historical traffic flow data. The indicium is then displayed to the vehicle's driver, along with an image representative of the traffic link.

Abstract: An on-vehicle communication device executes data processing to engage in data communication with an external apparatus via a wireless telephone unit, allows a telephone conversation to be conducted with the outside via the wireless telephone unit with a speech of a passenger input through a microphone and also executes voice processing for recognizing a speech of a passenger input through the microphone and converting the speech to control information. The on-vehicle communication device recognizes a speech input through the microphone during data communication, converts the recognized speech to control information and executes processing corresponding to the control information.