Repairing Runway Roughness – Walking Through the Process
By Michael Gerardi
By Michael Gerardi
Figure 1. The roughness event is located approximately 2,500 feet from the beginning of the runway. The insert is an enlarged plot of the roughness event plotted with the grade removed.
Figure 2. Simulating a Boeing 737-800, moderate aircraft response is predicted at the Pilot’s Station (upper band) and at the Aircraft’s Center of Gravity (middle band) after it encounters the roughness event as seen in the pavement profile (lower band).
Figure 3. Here is a plot that displays the repaired profile. APR’s analysts can manipulate the measured profile to optimize the repair to minimize pavement down time and repair costs.
Figure 4. When simulating a takeoff operation using the 737-800 model on the Repaired profile, aircraft response is predicted to be dramatically improved. This repair will extend the pavement’s life by reducing the dynamic loads as well as reduce the wear and tear on operating aircraft.