In March 2026, the average noise level at the Feldbergstrasse station was 68.6 decibels, with a maximum of 93.2 decibels. The highest recorded noise level at this station occurred on March 22, 2026, between 18:00 and 20:59, reaching 90.1 decibels. At the Grenzacherstrasse station, the average noise level was 63.2 decibels, with a maximum of 90.5 decibels. Both stations provided measured values in March 2026. An average noise level between 70 and 80 decibels is considered very loud, and while the Feldbergstrasse average of 68.6 decibels is just below this threshold, it remains high.

Looking at historical data since 2020 for the month of March, the average noise level at Feldbergstrasse has fluctuated between 69.2 decibels in 2026 and 72.0 decibels in 2024, with maximum values ranging from 88.6 decibels in 2021 to 92.7 decibels in 2022. The March 2026 average of 68.6 decibels is slightly lower than the historic average of 70.5 decibels for this station, indicating a quieter month compared to previous years. For Grenzacherstrasse, the March 2026 average of 63.2 decibels is notably higher than the 2025 value of 24.1 decibels, which appears to be an outlier, and is closer to the 2022 and 2021 averages of around 66 decibels. The maximum noise level at Grenzacherstrasse in March 2026 was 90.5 decibels, which is higher than in recent years but below the 2022 peak of 83.4 decibels.

At the Feldbergstrasse station, the highest noise level ever recorded was 93.2 decibels, which occurred in March 2026. The all-time lowest noise level at this station was recorded during the time period from 00:00 to 02:59, with an average of 61.6 decibels and a maximum of 66.5 decibels, making this the quietest time of day.

To help understand these numbers, the decibel (dB) scale is logarithmic, meaning that a 10 dB increase corresponds to a tenfold increase in sound intensity. For context, a quiet room is around 30 dB, normal conversation is about 50 to 60 dB, and street traffic from close by can reach 70 to 80 dB.

For readers interested in more details on noise monitoring, additional information can be found on the official noise monitoring website or by contacting the local environmental agency.