A moving sidewalk, moving walkway or travelator is a slow speed conveyor belt to transport people; they can walk along it or stand; it is like a horizontal escalator. They are often applied in pairs, one for each direction.
At least one person has been killed by such a system: Sally Baldwin, a professor of the University of York was crushed to death at Tiburtina Station in Rome on 28 October 2003 after a travelator collapsed and she was pulled into the cogwheels.
An inclined moving sidewalk, movator or moving ramp is used in airports and supermarkets to move people to another floor with the convenience of an elevator (people can take along their suitcase trolley or shopping cart) and the capacity of an escalator. The carts have either a brake that is automatically applied when the cart handle is released, or specially designed wheels that secure the cart within the grooves of the ramp, so that it doesn't roll uncontrollably down the ramp.