Attention travelers: In an effort to simplify parking options, the hourly and daily parking lots have been combined into one lot, called Terminal Parking. Parkers entering the Terminal Parking Lot may use any available space. Effective Wednesday, August 14, the rate is $6 per hour up to a maximum of $25 per day. For more information please click here.
IAD Dulles Int'l - Quarterly Track Density Plots
A Track Density Plot graphically depicts the frequency of aircraft movements over a defined area during a specified time period. It is an effective tool to illustrate arrival and departure corridors, or changes in flight procedures. A grid map is defined for the region and each grid is color-coded based on the number of times (frequency) an aircraft passed through the grid.
Track Density Grid Colors are based on Aircraft Frequency Count:
IAD Dulles International - Quarterly Track Density Plots: