ATLANTA (AP/WAOK) - An audit finds that Atlanta’s public transit system will have to cut more services in a few years if it doesn’t control runaway costs.

The audit released Monday also found that MARTA is spending $50 million above the national average for employee benefits.

Officials say results of the KPMG audit. It was commissioned by the Metropolitan Atlanta Rapid Transit Authority’s board of directors to give it a blueprint for stabilizing finances and expanding its services.

The audit also found that MARTA could save between $60 million and $142 million over five years by outsourcing many functions.

It found that a high rate of employee absenteeism cost MARTA about $11 million a year, while worker compensation claims were costing $5.5 million more than the national average.