A freight transport body has said improvements to a city centre interchange will benefit the economy by improving links to Belfast Harbour.
Regional Development Minister Danny Kennedy announced the consultation into the York Street interchange earlier this month and said the preferred option of a 'separated interchange' would cost between £100m and £135m.
Tom Wilson, general manager of the Freight Transport Association - which represents the freight and logistics industry - welcomed the proposal.
Mr Wilson said: "Belfast Harbour is a major centre of industry and commerce.
"The interchange at York Street currently caters for 100,000 vehicles a day, causing significant congestion and delays for traffic travelling between the Westlink and the M2 and M3 motorways at peak times.
"We welcome this consultation and the commitment made by the minister to improve transportation links to the harbour, which is already responsible for around 60% of Northern Ireland's and 20% of the entire island's trade."
He said the association was in favour of Mr Kennedy's preferred plan to create continuous links between the M2, M3 and Westlink, saying it would remove a "significant bottleneck" in Northern Ireland's road network.
"The Freight Transport Association believes this is the best option improving journey times, air quality, and reducing wasted fuel from vehicles stuck in congested traffic.
"The importance to our economy of investing in our roads infrastructure must be recognised by both the public and the Executive.
"Upgrading the York Street Interchange will help drive economic recovery and inward investment by improving access to the second largest port on the island of Ireland, and by creating short-term jobs in its construction phase."
The new road interchange is expected to take three years to complete.