Motorists in Greater Manchester are to find out more about plans to charge them to drive in and out of the city.
The charging plans have to be approved by the government
Greater Manchester's Transport Innovation Fund bid team is unveiling proposals for £3bn of improvements to public transport on Friday.
It will include initial plans for a targeted congestion charge.
Commuters in private vehicles are likely to be charged up to £5 for the privilege of entering the city, according to BBC Radio Manchester.
It is thought fees will be introduced within the M60, with motorists paying £2 to enter the outer zone and another £1 to access the centre at peak times.
It is believed they would be charged a further £1 to leave each of the zones.
Greater Manchester is among 10 areas in England which have received government money to develop congestion plans in the hope of getting finance under the Transport Innovation Fund (TIF).
Chris Fletcher, policy director at Greater Manchester Chamber of Commerce, told the BBC that the city needed to come up with some original ideas to tackle congestion.
He said: "It's not a done deal yet by any stretch of the imagination, but if something like this is going to happen I think we've got to be creative, not just within business but elsewhere as well.
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"Look at things like local travel plans, how employees can get to work more effectively, flexible working - there's a whole range of opportunities.
"But I do think we need to see what the finer details of these proposal are because it's such a broad ranging issue - I don't think there's one magic bullet solution to it."
It has not been decided when the charges would come into force.
The congestion charge system would target the 15 roads into Manchester with the greatest congestion, but the plans are dependent on government funding.
However, its introduction depends on the bid for government funding.
A final draft for funding will be submitted in July.