Rudolfstetten-Friedlisberg
At the Rudolfstetten-Friedlisberg, Bernstrasse site, a SDA 4-12 surface course was laid in 2016. Since then, 8 CPX measurements have been carried out in 2016–2025.
Fact sheet
| Pavement type | SDA 4-12 | |
| Maximum aggregate size | 4 mm | |
| Target void content | 12 % | |
| Year laid | 2016 | |
| Section length | 2117 m per direction | calculated from the measurement geometry |
| Elevation | 494 m a.s.l. | elevation model |
| AADT | 12,036 veh/day | AGIS 2025 emission inventory (AADT per cross-section) |
| CPX measurement speed | 50 km/h | |
| Coordinates | 2,670,956 / 1,246,581 (LV95) | |
| Number of measurements | 8 (2016–2025) |
Location
The measured section on the national map, coloured by the ΔStL-86+ (MV8) of the selected measurement year. At the top right you can change the year and the base map; where cores were taken, the sampling points are marked.
Acoustics
The slider selects the pavement age. At the top, the point moves along the ageing curve; at the bottom, the third-octave spectra for cars and heavy vehicles change. The grey lines in the background are the other measurement years.
Measured values — 8 measurements 2016–2025
| Measurement date | Pavement age | Δ StL-86+ cars (N1) | Δ StL-86+ HGV (N2) | Δ StL-86+ mixed traffic (N2=8%) |
|---|---|---|---|---|
| 09.09.2016 | 0 a | -6.2 dB(A) | -7.2 dB(A) | -6.7 dB(A) |
| 09.06.2017 | 1 a | -6.3 dB(A) | -7.0 dB(A) | -6.7 dB(A) |
| 15.06.2018 | 2 a | -5.0 dB(A) | -7.7 dB(A) | -6.3 dB(A) |
| 09.08.2019 | 3 a | -4.2 dB(A) | -6.7 dB(A) | -5.4 dB(A) |
| 07.05.2020 | 4 a | -4.2 dB(A) | -6.5 dB(A) | -5.3 dB(A) |
| 29.03.2022 | 6 a | -3.2 dB(A) | -7.2 dB(A) | -5.0 dB(A) |
| 29.08.2024 | 8 a | -1.3 dB(A) | -5.4 dB(A) | -3.1 dB(A) |
| 13.06.2025 | 9 a | -1.0 dB(A) | -5.5 dB(A) | -2.9 dB(A) |
Pavement engineering
The grading of the asphalt mix samples. The grey band is the envelope required by the standard; at the top right you can switch between the old and the new standard.
The values from the pavement investigation per core. The pink band is the target range; at the top right you can switch between the old and the new standard.
Surface
Macro photograph of the road surface, maximum aggregate size 4 mm. Click to view the image at full size.
Texture in 3D
Drag to rotate the model, scroll to zoom. The exaggeration slider stretches the heights, the button at the top right shows the scan in full screen.
Observations
To be added: why is this section a good example? Particular features of construction, maintenance or surroundings that explain its performance.
Files and raw data
- CPX raw data of the measurement series (CSV)
- Measurement reports of the individual campaigns (PDF)
- Macro photographs, complete series (ZIP)
- Texture scan (3MF, on the file server)