05-06-2013, 12:30 PM
GHW
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DEFINITION OF GHW
A Green highway is a constructed per a relatively for roadway design that integrates transportation
functionality and ecological sustainability.
The result is a highway that will benefit transportation, the ecosystem, urban growth, public health and surrounding communities.
RESEARCH MADE FOR GHW
Green Highways Partnership (GHP) is an alliance of Federal Highway Administration (FHWA), U.S. Environmental Protection Agency (EPA), other Federal agencies, State transportation and environmental agencies, industry, trade associations, members of academia, and contractors to encourage environmentally friendly road building.
The program studies potential ways to make asphalt more environmentally sustainable which will result in improved traffic safety and reduced life-cycle cost.
CHARCATERISTICS OF GHW
To develop a green highway, a project can follow guidelines provided below by GHP:[4]
Provide a net increase in environmental functions and values of a watershed.
Go beyond minimum standards set by environmental laws and regulations.
Identify and protecting historic and cultural landmarks.
Link regional transportation plans with local land use partnerships.
Control populations of invasive species, and promoting the growth of native species.
Incorporate post project monitoring to ensure environmental results.
TECHNOLOGY USED FOR GHWV
Permeable pavement, also known as pervious or porous paving , is a type of hard surfacing that allows rainfall to percolate to an underlying reservoir base where rainfall is either infiltrated to underlying soils or removed by a subsurface drain.
WILDLIFE CROSSING
Wildlife crossings are structures that allow animals to cross human-made barriers safely.
Wildlife crossings may include: underpass tunnels, viaducts, and overpasses (mainly for large or herd-type animals); amphibian tunnels; fish ladders; tunnels and culverts (for small mammals such as otters, hedgehogs, and badgers); green roofs (for butterflies and birds)
STREAM RESTORATION
Stream restoration or
river restoration,
sometimes called
river reclamation
in the UK, describes a set of activities that help improve the environmental health of a river or stream.
EXAMPLES FOR GHW
U.S. Highway 301 Waldorf Transportation Improvements project is working towards becoming the nation’s first truly green highway by incorporating the principles of the Green Highways Partnership and green infrastructure in its earliest planning stages.
Funding will be directed to environmentally sound, watershed projects that stress a wide range of water quality improvement strategies and targets.
It aims to improve the local traffic operation along US 301 while promoting and securing environmental stewardship.
CONCLUSION
The development of green highways will play an important role in the effort to mitigate man-made impacts on the natural environment.
The market for green construction is being explored and expanded.
Many disciplines have realized the benefits of sustainability.