Vicroads has used its $13.3 million Mickleham Road duplication project as a pilot to identify measures to reduce the carbon footprint of road projects and to calculate the footprint of a typical road construction project.rnVicRoads has also committed to buying carbon offsets from an accredited provider, making Mickleham Road Stage 2 the first 'carbon neutral' road construction project by a state road authority in Australia. The carbon footprint was calculated by identifying the greenhouse gas emissions generated by on-site electricity, fuel used by construction plant on-site, transport of materials to site, and the embodied carbon of materials used, such as asphalt, concrete, steel and so on.rnThe carbon footprint associated with the construction of Mickleham Road was 1751 tonnes of CO2-e, or 730 tonnes CO2-e per km of road built. Some 97 per cent of this came from the embodied carbon of materials (73 per cent) and on-site transport (24 per cent). The remainder came from transport of materials to site (2 per cent) and on-site electricity (1 per cent).
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