Higher tolls are set to begin Sunday for drivers on the Pennsylvania Turnpike.

For the third consecutive year, the toll hikes are higher for cash-paying motorists while drivers with E-ZPass will see an increase of about 2 percent.

The hike is in keeping with annual toll increases over the past five years, says Bill Capone, spokesman for the Turnpike Commission.

"When you calculate it, it's overall about a 3 percent annual increase, when you average it out," he said. "And that's kind of what we've been looking at over the last several years, overall roughly a 3 percent increase."

But cash-paying customers will see their fares go up 10 percent.

Capone says the reason for the difference in rates is to encourage motorists to use E-ZPass, as the Turnpike moves toward converting to all-electronic tolling.

Annual toll hikes began for the Turnpike in 2009 -- due, in part, to state law requiring the roadway to pay $450 million annually to PennDOT.