BBC News Published image captionThe preferred option involves the cyan, pink and orange routes Plans to dual the A96 road between Huntly and Aberdeen need a rethink, an MSP has said. The preferred route, unveiled in December, is to the south of Inverurie. North East Labour MSP Lewis Macdonald has called for plans to be reassessed. Transport Scotland said the options had been "thoroughly investigated". First Minister Nicola Sturgeon said last week the Scottish government was committed to the upgrade but that doing it by 2030 was now "ambitious". The proposed dual carriageway is more than 22 miles (35km) long. Route options are close to being finalised, but no planning applications have been submitted or construction contracts agreed.