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  2. Roadway noise - Wikipedia

    en.wikipedia.org/wiki/Roadway_noise

    Small reductions in vehicle noise occurred in the 1970s as states and provinces enforced unmuffled vehicle ordinances. The vehicle fleet noise has not changed very much over the last three decades; however, if the trend in hybrid vehicle use continues, substantial noise reduction will occur, especially in the regime of traffic flow below 35 ...

  3. Autobesity - Wikipedia

    en.wikipedia.org/wiki/Autobesity

    Autobesity, also known as car bloat and truck bloat, is the trend, beginning in about the 1990s, [3] of cars increasing in average size and weight. [4] [5] The average weight of cars sold in Europe increased by 21% between 2001 and 2022. [6] In the United States, SUVs and pickup trucks comprised more than 75% of new sales in 2024 compared to 38 ...

  4. Noise barrier - Wikipedia

    en.wikipedia.org/wiki/Noise_barrier

    The sound tube in Melbourne, Australia, designed to reduce roadway noise without detracting from the area's aesthetics. A noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants of sensitive land use areas from noise pollution.

  5. Average car weight - AOL

    www.aol.com/finance/average-car-weight-140033643...

    Gross vehicle weight (GVW): This is the curb weight plus all of the extras like passengers, ... How much does a small car weigh? A small car typically weighs somewhere around 2,500 pounds.

  6. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    [2] [20] [21] [22] Noise levels of 50 dB(A) or greater at night may increase the risk of myocardial infarction by chronically elevating cortisol production. [23] [24] [25] Traffic noise has several negative effects, including increased risk for coronary artery disease, with night-time exposure to noise possibly more harmful than day-time ...

  7. Save Money on Car Insurance in These 4 Ways (No Coverage ...

    www.aol.com/save-money-car-insurance-4-185233283...

    With the lofty price of cars, their maintenance and their fuel, many drivers are looking for ways to cut down on their vehicle spending, starting with insurance. Check Out: 10 Affordable Compact ...

  8. Noise pollution - Wikipedia

    en.wikipedia.org/wiki/Noise_pollution

    Day-night average level, DNL or LDN: This measurement assesses the cumulative exposure to sound for a 24-hour period (L eq over 24 hrs) of the year, with a 10 dB(A) penalty or weight added to nighttime noise measurements given the increased sensitivity to noise at night.

  9. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    Using a combination of sound absorption materials, arrays of microphones and speakers, and a digital processor, a restaurant operator can use a tablet computer to selectively control noise levels at different places in the restaurant: the microphone arrays pick up sound and send it to the digital processor, which controls the speakers to output ...

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