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.

Many critics 25 years ago assailed construction of the Casey Highway as the waste of $500 million on a “road to nowhere.” Back then, before it was named for Gov. Robert P. Casey, who shepherded the ...

Some of our viewers think it's a cosmetic fix at a time when our state is flat broke. We're talking about huge sound barriers being built along our highways. Joe in Stoneham is curious: "Who is paying ...

When it comes to highway sound barriers, pre-cast concrete has remained the industry standard because of a lack of acceptable, cost-effective alternatives. However, the Pennsylvania Turnpike ...

One and a half million dollars a mile. The cost of building a new lane on Interstate 95? Hardly — that’s more like $20 million. No, “$1.5 million dollars a mile” would be the cost of building new ...

BRENTWOOD — When the monotony of all-day distance learning gets to be too much, Sukumar Dash’s children would like to take their breaks by opening the windows for a breath of fresh air, but they don’t ...