SOME £4m has been 'wasted' over five years of failed temporary fixes to one of Scotland's key roads which has become plagued by landslides. Details of the official costs of the mitigation measures over the past five years have emerged as campaigners fight for a permanent solution after an over 15-year failure to prevent disruption on the A83 at the Rest and be Thankful. A campaign - backed by 1500 businesses - has issued a deadline of 2024 to finally resolve the issues with the important Highlands route which has been disrupted for seven months due to landslips and the threat of falling boulders.