Environment The challenge facing TII is to deliver a safe and efficient network of national roads and light rail within the framework of sustainable development. Environmental Integration Strategy TII has put a four-phase strategy in place to further the integration of environmental issues into road and light rail project planning, construction and operation. Planning Guidelines TII is currently developing a series of environmental guidelines to facilitate further the integration of various environmental issues into national road scheme planning. Construction Guidelines TII has published guidance documents to minimise the impact of scheme construction on certain animals, habitats and wetland archaeology. Also in this section Adapting to a changing climate TII is adapting and developing strategies for various extreme climatic events that will impact the national road and light rail network. Environmental Research TII’s Environmental Policy and Compliance section has undertaken various post EIA evaluation research projects as part of TII’s on-going Research Strategy. Noise Maps Under the Environmental Noise Regulations 2006 (S.I. No. 140 of 2006), TII is a designated noise mapping body for the development of strategic noise maps for all major national roads carrying in excess of 3 million vehicles a year and for light rail lines. Screening for Appropriate Assessment Regulation 42(1) of the European Communities (Birds and Natural Habitats) Regulations, 2011, states ‘A screening for Appropriate Assessment of a […] project […] which a public authority wishes to undertake […] shall be carried out by the public authority to assess, in view of best scientific knowledge and in view of the conservation objectives of the site, if that […] project, individually or in combination with other plans or projects is likely to have significant effects on the European site'.