Aircraft noise measurement results

We have installed twelve noise measuring stations in KIX, ten in ITAMI and five in KOBE, and are conducting 24-hour automatic measurements. The current noise levels measured at these stations are shown below.

Displayed Information

• The noise level of each measuring station is displayed every two seconds. The unit is dB (A). For details on how this differs from evaluation values, please click here.
• The value that can be confirmed is the measured value (instantaneous values) from 3 minutes before to 30 days before and is different from the evaluated value (Lden). When an aircraft approaches, the station receives the transponder signal sent by the aircraft and the circle gets bigger.
• Because other nearby sounds may be measured when the transponder signal is received, not all noise values received by the transponder signal are aircraft noise.
• The display may be delayed or unavailable depending on the quality of your device or internet connection.

Aircraft noise is measured using specialized equipment to accurately assess the noise conditions. For details on the measurement process and the equipment used, please click here.