From WebRef.org
Jump to: navigation, search

Any location in a study area subject to substantial human activity, such as scenic overlooks, visitor centers, recreation areas, or destinations reached by short hikes (1 hour or less).

Source: http://www.volpe.dot.gov/acoustics/docs/1990-1999/1999-1.pdf

Sponsor: Ford F-150 Tonneau Covers. Free shipping.