All the parks have a double rope drop. They open the gates at one time, and then stop you further into the park at a rope leading to the rest of the park.
Have some of you been sleeping in of late? When they open the MK park, YES, people do run and run fast for their favorite section of the park. The "rope drops" 15 minutes before park opening and people are sprinting for, say, Space Mountain. However, they are dismayed, and Cast Members are amused, when a rope stops them on the bridges so they aren't getting out of the hub area until on the dot exactly. Then the area ropes drop and the sprinting happens again. Technically, MK has a quadruple rope drop. 1. open the turnstiles. 2. after the show, drop the ropes at the train station to let you on Main St. 3. drop the ropes at the 4 bridges leading to the lands. 4. drop the ropes at Toon Town.
At Studios, the entire park tips toward RNC or TOT after the rope drop show with a small percentage headed for Little Mermaid or Star Tours.
At Epcot it is evenly split towards Test Track/Mission Space and Soarin'
At AK, it is Safari or Everest.