In April 2025, the average noise level recorded at the Feldbergstrasse station was 68.5 dB, with a maximum noise level reaching 92.7 dB. The highest noise level at this station was recorded on April 28 between 9:00 AM and 11:59 AM, measuring 90.6 dB. The stations with measured values during this period include Feldbergstrasse and Grenzacherstrasse. It is worth noting that noise levels between 70 and 80 dB are considered very loud, comparable to street traffic from close by.

Since 2020, the average noise levels at Feldbergstrasse have remained consistent with an average of 68.5 dB and a maximum of 92.7 dB, with the 99th percentile at 87.9 dB. Comparatively, in April 2025, the noise levels were similar, indicating no significant deviations from historical values. At Grenzacherstrasse, the average noise level since 2020 has been 63.8 dB, with a maximum of 90.5 dB and a 99th percentile of 80.9 dB, which aligns closely with the levels recorded in April 2025.

The highest noise level at Feldbergstrasse was 92.7 dB, recorded at an unspecified date and time. The all-time lowest noise level at this station was 83.0 dB, recorded between 3:00 AM and 5:59 AM during April 2025.

The unit of measurement for noise levels, decibels (dB), is logarithmic. This means that a 10 dB increase represents a tenfold increase in sound intensity. For context, a quiet room is about 30 dB, normal conversation ranges from 50 to 60 dB, and street traffic can reach 70 to 80 dB.

For readers interested in more details on noise monitoring, additional sources are available in the footer.