Runway data provides improved awareness of runway location with respect to the surrounding terrain. All runway thresholds are depicted at their respective elevations as defined in the database. In some situations, where threshold elevations differ significantly, crossing runways may appear to be layered. As runways are displayed, those within 45 degrees of the aircraft heading are outlined in white. Other runways (those NOT aligned with the aircraft heading) are outlined in gray. When an approach for a specific runway is active, that runway appears brighter and is outlined with a white box, regardless of the runway orientation as related to aircraft heading. The white outline of a flight plan runway will appear on the display larger the further the aircraft is from the runway and scale down slowly as the aircraft approaches the specified runway until it conforms to the actual size of that runway. As the aircraft gets closer to all runways, more detail such as runway numbers and centerlines are displayed.