|
RDLENCHIGH - Total road length of highways Highway length by class was calculated by summing the length of
all state and federal highways in the 1 km grid cell reporting unit.
Values are reported in meters. Roads increase imperviousness, potentially
decreasing water quality. Roads also fragment habitat and may act
as barriers, especially to large mammals. Wider roads and higher
traffic volumes will generally have more adverse affects, and impact
a larger surrounding area then smaller, less traveled roads. |