US Patent 10198942 Traffic routing display system with multiple signal lookahead

A traffic routing display system provides a visual display of a speed or series of speeds suggested to the driver such that the driver may pass through multiple consecutive traffic signal devices without stopping at a red light. In one aspect, the display depicts the expected state of an upcoming traffic light. In another aspect, the display is an icon colored to correspond to the expected state. In another aspect, the time remaining before the state of a traffic light changes is displayed. The effect that an indicator has on driver behavior is used to determine the type of indicator to provide to the driver. Certain indicators may not be displayed by the system depending on the effect they have on the driver.