Sustainability is a system
characteristic that reflects its
capacity to support natural laws and human values.
A PACE TOWARDS GREENWAYS
Sustainable Road Project
The Port River Expressway has proven to be one of the most environmentally complex and challenging road projects in South Australia’s history. Always we want a better road as they are important for a nation to meet the requirement of growing travel demand and to help the faster growth of economic activity. Some new challenges are arising day by day for road construction and maintenance as such will require a number of new approaches. Such challenges will result from a growing number of interconnected environmental, social, and economic factors, which are set to apply significant pressure on the future of roads. For instance, environmental pressures will include the impacts of climate change on rainfall patterns and temperature profiles; economic pressure will be affected by materials and resources shortages, along with predicted increases in energy and resource prices globally, and social pressures will include potential shifts to lighter vehicles, reduced use of cars due to higher fuel costs, and political pressure to respond to climate change. Roads are one of the greatest green house contributors, both directly, through fossil energy consumed in mining, transporting, earthworks and paving work, plus the emissions from road use by vehicles. To overcome these challenges we need sustainable roads or environment friendly roads. We can define Sustainability as development that meets the needs of the present, without compromising the ability of future generations to meet their own needs. There are three spheres of sustainability: the economy, society and the environment. Sustainable Roads
Effectively and efficiently planned, designed, built, operated, upgraded and preserved roads by mean of integrated policies respecting the environment and still providing the expected...