Road surface sound reduction system
US7281878B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 3, 2006 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | May 3, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/44
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for reducing tire to road noise generated by vehicles on a road surface comprises generating a pseudorandom unique line pattern, providing said pattern as transverse grooves disposed in the road surface, said grooves being randomized according said line pattern as to one or more of position, frequency, and depth so as to spread the noise spectrum thereby reducing the amplitude or volume of noise generated at any single frequency and are capable of dramatic reductions in noise generated by high speed traffic on roadways. It can be implemented by conventional construction practice at little or no additional cost and eliminates the need for costly structures such as noise barrier fencing in residential areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.