Aircraft system and method to provide graphical threshold range indicator

A method, comprising:

• receiving, by at least one processor communicatively coupled to a display, aircraft traffic data and ownship data, the display configured to present images to a user, the at least one processor and the display in an ownship;
• at least one of determining or adjusting, by the at least one processor, a threshold range based at least on the aircraft traffic data and the ownship data, the threshold range representing a time or distance threshold to designated traffic;
• generating and updating, by the at least one processor, a linear map including a graphical threshold indicator, the threshold indicator representing a time or distance from the threshold range to the designated traffic, the linear map depicting a one-dimensional relationship between the ownship and the designated traffic;
• outputting, by the at least one processor, the linear map including the graphical threshold indicator as graphical data to the display;
• and
• displaying, by the display, the graphical threshold indicator to the user;
• wherein the threshold range is limited to be within a predetermined range of values representing the time or distance threshold to designated traffic;
• wherein the graphical threshold indicator is one of an advisory graphical threshold indicator or an alert graphical threshold indicator, wherein a graphical appearance of the graphical threshold indicator varies at least based on whether the ownship is inside or outside of the threshold.