[WIB Construction Method Case Study] Traffic Vibration Mitigation for Existing Roads

The vibration level Lmax confirmed an average reduction of 7dB and a maximum of 13dB! Comfort has been improved!

In Kanagawa Prefecture, traffic vibrations caused by large vehicles passing through the roads have been affecting the living environment along the routes, leading to complaints from residents. As a response, road improvement work was carried out, and the 'WIB method' was implemented directly beneath the road. Vibration measurements were conducted before and after the countermeasures. When comparing the vibrations at the boundary between public and private properties of four residential buildings along the road before and after the measures, an average reduction of 7 dB and a maximum reduction of 13 dB in the vertical vibration level Lmax were confirmed, resulting in improved livability. [Case Summary] ■ Location: Kanagawa Prefecture ■ Vibration Source: Road traffic vibrations ■ Conservation Target: Several residential buildings along the road ■ Countermeasure Work: Plate-type WIB method (honeycomb cell type) ■ Installation Position: Directly beneath the vibration source *For more details, please refer to the PDF document or feel free to contact us.

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