A long-time campaigner for improvements to Scotland's longest trunk road has said improving the route is more relevant than giving Edinburgh trams.
Norman McCandlish said the A9 alternating from dual to single carriageway between Perth and Inverness was a major problem.
The comments came as MSPs staged a heated debate on the issue at Holyrood.
Transform Scotland said there was no money available to fund the scheme.
In 2008, the body said a full upgrade could cost up to £4bn.
It said the work between Dunblane and Inverness could be carried out in two phases, the first costing £500m to £1bn and the second between £1.5bn and£3bn.
Stretches of the A9 were the scene of fatal and serious accidents last year.
Mr McCandlish, a former chairman of the Mid Atholl, Grandtully and Strathtay Community Council, said improvements would be expensive.
He told BBC Scotland: "I think one of the major problems is the switch from dual to single and back again.
"If you look at the accidents it is quite evident that that has been a factor."
Mr McCandlish said local drivers knew when and where it was safe to overtake but tourists and other visitors did not have the same knowledge.
He added: "Yes, you are going to have to throw money at it but I would suggest it is probably more relevant than Edinburgh's trams."
Conservative MSP Murdo Fraser, who led a debate on the issue at Holyrood, said: "The A9 is officially Scotland's most dangerous road, with the highest fatality rate of any road in Scotland.
"I fully accept that dualling the A9 will not end accidents on the road but it is clear that dualling this road will greatly reduce the number of accidents and save lives.
"The major problems with the A9 between Perth and Inverness are the long and dangerous stretches of single carriageway and the fact that the road continually switches between single and dual carriageway."
Speaking during the debate, Transport Minister Keith Brown said the A9 had seen £50m of investment since 2007, with further investment taking place.
"We have chosen to commit to the A9 phased dualling - that's been demonstrated by the work we've taken so far, said the minister, adding: "Instead, the commitment given by the Conservatives is to prioritise trams in Edinburgh and that speaks volumes."
Mr Brown's comments prompted Mr Fraser to shout, "he's not fit to be a minister", which earned the Tory a rebuke from Holyrood's deputy presiding officer.
Posted Courtesy of BBC News
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