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Tallest roller coaster: Kingda Ka
Kingda Ka, a record-setter at Six Flags Great Adventure in Jackson, N.J., peaks at 456 feet.
ASTM International, a private standards-setting organization based in Pennsylvania, has published standards that spell out the maximum thrust, acceleration and drops for theme park rides. But the standards are not mandatory in every state. And even if they abide by the limits, ride designers say they can still come up with attractions that push the boundaries in new ways.
October 2, 2012