Weight Room/Cardio - Why can I only workout for 30 minutes on a cardio machine?

This rule only applies when others are waiting.  If another machine of the same type is available and no one appears to be waiting, you can continue to exercise on the machine for longer than 30 minutes.  However, thousands of patrons use the facility each day and we want as many people as possible to have access to the cardio equipment; if others are waiting you are required to get off your machine after 30 minutes to allow another user an opportunity to use the equipment.  You are welcome to get on another open machine when one comes available.