As Minister for Transport I have responsibility for overall policy and securing Exchequer funding in relation to the National Roads Programme. Under the Roads Acts 1993-2015 and in line with the National Development Plan (NDP), the upgrading and improvement of individual national roads, including appraisal of their environmental impact, is a matter for Transport Infrastructure Ireland (TII), in conjunction with the local authorities concerned. This is also subject to the Public Spending Code Guidelines and the necessary statutory approvals.
With regard to climate action, the impact of transport infrastructure on carbon mitigation is taken into account in TII's investment decisions on national road infrastructure.
Noting the above position, I have referred your question to TII for a direct reply. Please advise my private office if you do not receive a reply within 10 working days.