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  2. Low rolling resistance tire - Wikipedia

    en.wikipedia.org/wiki/Low_rolling_resistance_tire

    When measured by using these standard test practices, most new passenger tires have reported RRCs ranging from 0.007 to 0.014. [2] In the case of bicycle tires, values of 0.0025 to 0.005 are achieved. [3] These coefficients are measured on rollers, with power meters on road surfaces, or with coast-down tests.

  3. Rubberized asphalt - Wikipedia

    en.wikipedia.org/wiki/Rubberized_asphalt

    Rubberized asphalt concrete (RAC), also known as asphalt rubber or just rubberized asphalt, is noise reducing pavement material that consists of regular asphalt concrete mixed with crumb rubber made from recycled tires. Asphalt rubber is the largest single market for ground rubber in the United States, consuming an estimated 220,000,000 pounds ...

  4. Roadway noise - Wikipedia

    en.wikipedia.org/wiki/Roadway_noise

    Roadway noise is the collective sound energy emanating from motor vehicles. It consists chiefly of road surface, tire, engine/transmission, aerodynamic, and braking elements. Noise of rolling tires driving on pavement is found to be the biggest contributor of highway noise and increases with higher vehicle speeds. [1] [2] [3]

  5. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    Highway noise is today less affected by motor type, since the effects in higher speed are aerodynamic and tire noise related. Other contributions to the reduction of noise at the source are: improved tire tread designs for trucks in the 1970s, better shielding of diesel stacks in the 1980s, and local vehicle regulation of unmuffled vehicles. [13]

  6. 30 Man-Made Innovations That Were Designed Mimicking Nature’s ...

    www.aol.com/30-objects-were-directly-inspired...

    The tire, which was introduced at this year's Consumer Electronics Show, is comprised of two lobes of braided steel and is designed to be able to easily trek over hills of fine-grained, abrasive ...

  7. Tyre label - Wikipedia

    en.wikipedia.org/wiki/Tyre_label

    For passenger and light truck tyres, the manufacturers or importers have the choice of either putting a sticker on the tyre tread or a label accompanying each delivery of batch of tyres to the dealer and to the end consumer. The tyre label will use a classification from the best (green category "A") to the worst performance (red category "G").

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