A power ambulance cot (10) having a cot control system operably connected to a cot actuation system (34) to control independent raising and lowering of front (20) and back legs (40) thereof, and which detects a presence of a signal requesting a change in elevation of a support frame (12) thereof and causes the cot actuation system to raising or the lowering of the front and/or back legs automatically upon detecting a condition during loading/unloading a patient from an emergency vehicle or transporting the patient up or down an escalator and methods thereafter are disclosed.