Highway driving exposes every weakness in a car's sound insulation. At city speeds, engine noise and tire noise can mask ...

When bats go hunting by listening for faint rustling sounds made by their quarry on a quiet night they don't have any problems. But what happens when a bat goes foraging next to a noisy highway? Can ...

When it comes to highway sound barriers, options are few and far between. For years, precast has remained the industry standard due, in large part, to lack of acceptable, cost-effective alternatives.

We saw the new F80 M3 in spy shots and in spy clips all over the internet lately, meaning that BMW is really gunning it down the last 100 yards, testing every possible thing on the new car. It also ...

Federal and state rules require sound barriers in highway expansions that meet certain criteria. Engineers must show that a barrier would reduce noise by a noticeable amount — 5 decibels or more.

With Interstates 495 and 95 converging together in our region, there's plenty of unwanted highway noise to go around. The noise serves as the background hum across a wide corridor of Greater ...

CLEVELAND (AP) — The soundproofing walls that increasingly line highways, especially in densely populated areas, often have a brooding look. But transportation planners are beginning to borrow an idea ...

It’s a known fact that a lot of people have been complaining about the sound of the new S55 3-liter inline 6-cylinder engine from BMW that has been stuck under the bonnet of the new M3 and M4 models.

The Connecticut General Assembly’s Transportation Committee has approved a bill that would require the state Department of Transportation to schedule for and fund construction of certain highway noise ...