The IAH (on JFK Blvd.) was a nail biting and confusing experience since the "courtesy van" operation schedules had changed, no longer on a 30 min. shuttle basis but rather a "wait and see" if it shows up for one's pick up. Evidently management decided to bring in an outside firm (drivers) to perform their scheduled shutttle driving by consolidating The Red Roof Inn as well as the Ramada and not having a set schedule etc. This made often times a wait for the van from the airport of almost an Hour (unacceptable) and unpredictable times from the Ramada to the airport. Please fix it!!