The document lists 11 suburbs that it says have no "net new development potential" from the project. Two of those suburbs are Hoffman Estates and Villa Park.
Yet the report contends that those 11 alone will gain 1,350 jobs from the project.
Four other suburbs, including Elmhurst, might have "limited" new development potential, stemming from some commercial impact.
Still, the report estimates that these communities will gain 2,900 jobs from the Elgin-O'Hare.
Officials at Chicago-based SB Friedman, which provided employment and economic research for the report, said other factors were used to calculate the job numbers when there was no predicted real estate development.
The communities might gain jobs from other sources such as the service or government sectors, or from a hospital, for example, said Ranadip Bose, a senior project manager for Friedman.
He acknowledged it's difficult to make the projections. "No one can be perfect. What we tried to do is be as realistic as possible," Bose said.
In addition to the Elgin-O'Hare project, toll authority officials say the rebuilding and widening of the Jane Addams (I-90) will be another significant jobs generator.
The three-year project, estimated to cost nearly $2.4 billion, will create "or sustain" as many as 11,500 jobs, according to the toll authority.
Another major tollway project is the construction of a new interchange at the Tri-State and I-57.
The $604 million project will support as many as 4,000 jobs during construction and create or sustain as many as 2,000 permanent jobs, the agency says.
The toll authority's consultants, al Chalabi Group Ltd. of Chicago and CDM Smith, provided the job estimates.
Another critic of the Move Illinois program is a former toll authority board member, Bill Morris, ex-mayor of Waukegan and onetime state legislator.
The outspoken Morris, a finance expert, had been appointed by Quinn but was bounced after criticizing last year's toll increase as excessive.
"The new excuse to spend taxpayer or ratepayer money is simply to say 'jobs, jobs, jobs,' but it would be interesting to test the numbers, both the projections and the actual numbers," Morris said.
"Public works projects should be done because of public need, not as a job creation program."