Y wont anybody ride my roller coaster

The specs of the ride are important when it comes to peeps riding. You know the 3 right? excitment , intensity and nausia. If you have high , med, low in that order you have a very good ride. If intensity is high but lower in figure than excitment you might get some peeps with high intensity tolerance riding it. Also is your ride fast on inversions ( loops ect) as this can make high intensity too specially if your ride is short.