Some travelers will pay more to park their cars at Raleigh-Durham International Airport starting Monday, when the daily parking garage fee rises from $10 to $12.

Other parking rates will not change, RDU said: $2 per hour in the daily section of the garage (where $12 is the new daily maximum), $1 per hour in the hourly section of the garage ($24 per day maximum), and $6 per day in the park-and-ride lots.

Parking provides RDU's biggest single source of revenues. The rate increase will help the publicly owned airport pay for the $570 million Terminal 2 and for a planned overhaul of Terminal 1. The daily rate was increased to $10 in 2004.