Not exact matches
Many protected areas already use
noise -
reducing strategies, like operating shuttles to
reduce traffic or concentrating
highways and flight paths into «
noise corridors.»
«Closing the fabric sun shade
reduced the
noise a little bit, but it was still a loud
highway ride,» he added.
As copy editor Rusty Blackwell observed, «It seems that the
highway mileage could be boosted significantly - and overall
noise reduced at the same time - if Mazda made fifth and sixth gears a bit taller.
Wind
noise and secondary vibrations are drastically
reduced, and while some
highway patter still enters the cockpit at high speeds, it never becomes obtrusive.
ROWLAND HEIGHTS, Calif. — Deputy Federal
Highway Administrator David S. Kim today joined state and local officials to cut a ceremonial ribbon to open the Nogales Street Grade Separation Project, which will improve safety,
reduce noise and emissions, and enhance freight movement in Los Angeles County.
The other upshots are shorter initial gears for better acceleration feel and taller top gears for better
highway fuel economy and
reduced engine
noise.
Additional insulation and aerodynamic tweaks to the Civic Type R help
reduce in - cabin
noise on the
highway even further.
The company says that cabin
noise has been
reduced by approximately 25 percent on
highways.
Further, to maximize efficiency, the system can direct more available torque to the rear wheels during steady - state
highway cruising for
reduced drivetrain frictional losses and
noise.
Four overdrive ratios benefit
highway driving while also
reducing overall
noise, vibration and harshness.
At typical
highway cruising speeds, the new Boxster displays greater refinement than the car it replaces; mechanical, road and wind
noise are all
reduced with its excellent new cloth roof in place.
A unique set of two overdrive ratios improve
highway fuel economy and
reduce overall
noise, vibration and harshness (NVH) levels.
New door seals help
reduce seal «pull - away» at
highway speeds, which can cause wind
noise.
The silencer is also aerodynamically shaped, another Civic first, to help improve airflow underneath the vehicle, helping to improve fuel efficiency,
reduce emissions, and further
reduce air turbulence - inducing
noise at
highway speeds.
The low operating speed range also
reduces noise and provides a quiet cabin environment at
highway speeds.
Road
noise is significantly
reduced and Subaru has worked to tune out certain frequencies to make conversation or listening to music at
highway speeds more comfortable.