Systematic, well-designed, and implementable research is the most effective way to solve many problems facing state departments of transportation (DOTs) administrators and engineers. Often, highway ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustrations by Chelsea Conrad/The Washington Post Imagine a deep, static rumble, like the low roar of a jet engine. The sound is ...

The discovery also sheds light on why some people are disturbed by low-frequency noise while others barely notice it. If the ...