See where it says Buckley Road and then you turn into RTC? This turn is OHIO. Then see Gate 8 with the red dot? This is the gate to enter for PIR. If you continue past Gate 8 on OHIO you will head straight into the Metra parking lot
Just an FYI for everyone. I went to PIR May of this year. We were directed to park behind Midway Hall (where the black grid marks are beside the green building), NOT across the way where it says "Parking Lot Graduation". Actually it goes…Parking structure, Visitors Center (USS YORKTOWN), which leads into Midway Hall.
We DID return our Sailor to that parking lot across the way on the first night. All days after that I was always directed to the parking structure behind Midway Hall. I had to park and walk across (it's a walk)to get my SR from the NEX. (Visitors are not allowed past the Chapel)
Here is a full view of RTC: