People living or working in the Trafford park area of Greater Manchester will receive 50% discounts on the proposed congestion charge for the three years to 2016, while the Metrolink there completes.
Leader of AGMA, Lord Peter Smith said: "Trafford Park is of huge strategic importance to Greater Manchester's economy. We recognise that public transport to the area is currently poor and these measures will in part address this issue.
"We want to offer drivers the option of a world-class public transport and this is the beginning of a process which will be completed when Metrolink arrives in 2016."
AGMA insists that a comprehensive public transport package will be in place by 2013, however.
Two core bus schemes, a fast and frequent Metrobus service running from Cornbrook Metrolink station and a free shuttle service running throughout Trafford Park linking the Metrobus route to key employment areas will be up and running by 2010.
Improvements to nearby rail stations, improved bus services from neighbouring areas, walking and cycling improvements and the appointment of a dedicated travel coordinator, who would work with employers in the Park, should also be in place.
Chair of GMPTA Matt Colledge said: "Trafford Park desperately needs a dramatic uplift in its public transport – both to support employers on the estate and to make sure that job opportunities on the estate are open to local residents. These measures have the potential to make a dramatic change to the way employees get to the estate."
The 30,000 people who work in Trafford Park are surrently resigned to using their cars, as many are shift-workers and are resigned to using their cars.
Around 80% of work trips to Trafford Park are made by car, which is considerably higher than the Greater Manchester average of 70%.