In April 2026, the average noise level at Feldbergstrasse was 68.6 decibels, with a maximum of 93.2 decibels. The highest recorded noise level at this station occurred on April 27, 2026, between 15:00 and 17:59, reaching 89.8 decibels. The stations with measured values in April 2026 were Feldbergstrasse and Grenzacherstrasse. Since the average noise at Feldbergstrasse falls below 70 decibels, it is not considered very loud by the standard definition.

Looking at historical data since 2020, the average noise level at Feldbergstrasse in April has ranged from 67.2 decibels in 2024 to 73.0 decibels in 2023. The April 2026 average of 68.6 decibels is close to the 2025 value of 68.9 decibels and slightly above the 2024 value of 67.2 decibels, but notably lower than the 2023 peak of 73.0 decibels. At Grenzacherstrasse, the April 2026 average of 63.2 decibels is a notable increase from the unusually low 24.1 decibels recorded in April 2025, which appears to be an outlier, and is similar to levels seen in 2021 and 2022.

The highest noise level ever recorded at Feldbergstrasse was 93.2 decibels, which occurred in April 2026. The all-time lowest noise level at this station was 61.9 decibels, recorded during the 00:00-02:59 time period in April 2026.

Decibels, or dB, are a logarithmic unit of measurement. This means 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 approximately 50-60 dB, and nearby street traffic can reach 70-80 dB.

For readers interested in more details on noise monitoring, additional sources include the city's environmental department website and the national noise monitoring network.