抄録
A moving speed and a wheel load of an aircraft are important factors of airport pavement structual design. The wheel load is a combination of the type of the aircraft, gross weight and tire pressure. The moving speed and wheel path distribution pattern varies by the type of the airport pavement. An equipment was developed to measure the speed and the wheel path distribution of large type aircraft on the taxiways in New Tokyo International Airport. The equipment consists of three sets of laser beams. Two sets of the laser beams are installed in parallel crossing the taxiway. One laser beam is installed at 45 degree angle to the center line of the taxiway.
The observed mean speed of aircraft was about 40km/h. The Two-parameter logarithm normal distribution can be used to plot the speed distribution.
The distribution of offsets of the aircraft center from the center line of the taxiway can be expressed as the normal distribution. It was observed that the wheel path maximum offset of the main gear was 10m from the center line of the taxiway.
