Six options were appraised and this is fully discussed in the A83 Trunk Road Route Study, Part A which can be found on the Transport Scotland website at the following link: http://www.transportscotland.gov.uk/system/files/uploaded_content/documents/projects/A83/a83-rest-and-be-thankful-project-a83-trunk-road-route-study-report-part-a-final.pdf The “Brown O...