This exercise involved both trunking and detrunking of existing trunk roads to create a network which would:provide the road user with a coherent and continuous system of routes which serve destinations of importance to industry, commerce, agriculture and tourism;define nationally important routes which will be developed in line with strategic national transport demands; andensure that those roads which are of a predominantly local importance are managed locally.A list of roads which were trunked and their length in miles is given in the table below.New Route NumberFormer Route NumberSections of RoadLength in MilesA9A895Latheron to Roadside19A82A82A82 to A9 (Kenneth St/Friars Bridge/ Longman Road2A95A95Keith to the A9, North of Aviemore49A90A952Peterhead Bypass2A87A850Kyleakin to Borve38A87A856Borve to Uig11A887A887A87 to the A8216A86A86A82 to the A9, North of Kingussie40A889A889A86 to A99A90A92Aberdeen Peripheral Route (Anderson Dr and the Parkway)10A83A83Lochgilphead to Kennacraig22A85A85Perth to Lochearnhead35A92A972A92 to the A901A92A92/A991Tay Bridge to the A9722A92A92Tay Bridge to the Forgan Roundabout1A92A914A91 to Forgan Roundabout13A8/A78A8/A78Port Glasgow to Greenock5M8M8Glasgow Urban Motorway15M80M80M8 to Glasgow City Boundary3M77M77Ayr Road Route8A720A720Edinburgh City Bypass14A702A702Edinburgh City Boundary to Edinburgh City Bypass-A737/738A737/738St James Interchange to Kilwinning21A725A725Coatbridge to East Kilbride11A726A726East Kilbride to B7665A6091A6091A7 to Newton St Boswells6A751A751A77 to the A75, East of Stranraer2Total360The criteria to be taken into account to decide whether a road should become a trunk road is set out in section 5(2) of the Roads (Scotland...