Mary Poppins, or MAPO (US patent 3,973,746), the moving blocklight system that maintains spacing on Disney World monorail trains
Topics referred to by the same term
This disambiguation page lists articles associated with the title Mary Poppins. If an internal link led you here, you may wish to change the link to point directly to the intended article.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.