It's a hassle to go to the gym and find a huge crowd, and all the machines and weights in use. Link the swipe in system and the turnstyles to some online software that simply monitors the number of people that come in and out and displays these numbers in real-time. After a month of monitoring, number ranges can be assigned crowdedness level (such as light, moderate and high). This could be viewed on MyNeu, among the the links where one finds LaudryView