More than 1800 Department of Education staff will be shifted from Sydney's CBD to Parramatta, the Premier has announced ahead of a report that outlines the urgent need to correct the expanding gulf between the number of jobs in the east and west of the city.

The Deloitte report, to be released on Tuesday, shows that without a jobs boost western Sydney would need 19 new freeways, six new train lines or 1700 new buses to cope with the daily exodus of residents heading to work in the CBD in the future.

Premier Mike Baird has not said whether he will commit to the target of 200,000 jobs by 2020. Credit:Louise Kennerley

It comes just a month after the Baird government was heavily criticised for failing to do more to support professional jobs in the region after the Commonwealth Bank announced that it was closing three western Sydney offices and shifting about 9000 workers to Redfern.

Mike Baird announced on Tuesday that the first Department of Education staff will relocate from central Sydney to Parramatta in 2018, with the move to be completed by 2020.