Consultants have been trying to find solutions to Newtown's traffic problems
Plans to reduce congestion in Powys' busiest town are going on display to get residents' feedback.
There have been calls for a bypass in Newtown for decades, and last year it was announced work could start between April 2011 and April 2014.
Consultants were appointed to find solutions to traffic problems in 2007.
Six options for a bypass and other improvements to relieve congestion have been put forward. Consultation runs from 3 September until 24 November.
It will be based on a report by consultants Parsons Brinckerhoff, who were appointed to help solve Newtown's traffic issues.
Newtown's road network is seen as crucial to a number of projects in and around the town over the next few years.
A Tesco supermarket is being built, but more significantly a number of wind farms are to be upgraded and road improvements are needed to ensure a new generation of larger, more powerful, turbines can reach the uplands of mid Wales.
The deputy first minister and minister for the economy and transport, Ieuan Wyn Jones said: "The residents and businesses of Newtown have suffered the effects of congestion for a number of years and if we don't act to improve this situation it will only get worse.
"These proposals will not only bring safety and environmental benefits to the residents but will also help further the economic development of the town.
"Newtown is situated on the very important north to south and east to west corridors of the A483 and A489 so this bypass is also of vital importance to the whole of Wales.
"It will improve journey times and reduce accidents on these routes."
An exhibition of the proposals will be held in the town's Monty Club from September 8 to 10 and a brochure and response form will be sent to residents and businesses.