The cut comes weeks after thrillseekers had to be evacuated off Rainbow's End's rollercoaster after it stopped near the highest point.
About 15 passengers were escorted off the Corkscrew Coaster on November 18 after a back-up safety mechanism caused it to stop during the incline.
A subsequent check found there was no fault and the rollercoaster was back up and running within 45 minutes.
The park's roller coaster also stopped mid-ride in January 2015, when it overheated and stalled for about 10 minutes near the highest point before restarting.