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Expected acoustic effect and lifespan

The following table shows the three most commonly used low-noise surfaces (LAB) in Switzerland along with their expected acoustic initial and final effects.

Most commonly used LAB in Switzerland with their acoustic initial and final effects (for mixed traffic with 8% heavy traffic share)

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* in deviation from the model StL-86+

** expected lifespan in lower altitudes
*** in damaged condition

Note: -3 dB corresponds to an effect that is equivalent to halving the traffic volume.

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