MINING giants OGL declared an independent feasibility study found "no issues of concern" for a proposed haulage route from Ebenezer to the Port of Brisbane.
The 80km route, which covers the Ipswich Motorway, is touted to carry 1.5 million tonnes of coal, but OGL won't reveal how many extra B-doubles will make the journey.
OGL announced early this year a plan to expand coal exports from the Port of Brisbane from 600,000 tonnes a year to 1.5 million.
The ASX announcement drew criticism from Rail Back on Track spokesman Robert Dow.
He said the cost to the community in road damage and increased traffic was too much to pay.
"We are strongly against the road transportation of coal in south-east Queensland. It would already add to the serious road problems in existence," he said.
The reality is one train equals between 20 and 30 B-doubles. You just don't want them on the roads.
Mr Dow said his preferred option was the construction of a rail line in the southern freight rail corridor.
An OGL representative would not comment on how many B-doubles would use the route and who conducted the study.
"We will not disclose the information as its part of the approval process we undertaking now, hence it's all confidential," the representative said.
The ASX statement read: "The road haulage report complements the recently announced positive feasibility study for the use of the Pinkenba port facility for the handling and export of up to 1.5 million tonnes per annum."
The independent consultant has submitted applications for regulatory approval with the Department of Transport and Main Roads, Ipswich and Brisbane councils.
The announcement said one of the key features of the route was low traffic impact, a heavy-duty highway and the motorway was recently upgraded.
This week's announcement follows news last month of another feasibility study confirming the Port of Brisbane facility could support the handling, storage and shipping of up to 1.5 million tonnes of coal per annum.