ready to run for the day's operations. Each train is run by an engineer and fireman in the locomotive, as well as a conductor at the rear of the train who supervises the passengers and ensures that the passenger cars' equipment is working. Since the locomotive needs steam pressure to operate, an air compressor hose needs to be connected to the locomotive to run the stack blower and atomizer valves for the fireman firing up the locomotive every 45 minutes. Once the locomotive is fired up, the train leaves the roundhouse and stops in front of a railroad crossing while the train crew performs the safety valve test on the locomotive. Afterwards, the train moves to a small bridge where the train crew performs a boiler blowdown on the locomotive. Once the train enters the Magic Kingdom park starting at Fantasyland Station, the last safety check is performed where the train runs past a red light to test the passenger cars' automatic brakes. When the Magic Kingdom park opens, the trains arrive at each station with the fireman ringing the locomotive's bell to let the passengers know that the trains are ready for boarding. Each time a train completes two trips around the park, the fireman will take the engineer's position with the latter taking a break and a new fireman taking the former's position every 40 minutes at Main Street, U.S.A. Station. Meanwhile, the train conductor at each train swapped positions with the station conductor at each station every 20 minutes. It usually takes about two and a half minutes to get some of the passengers off and more passengers on the train at each station. The conductor sounds a buzzer horn in the locomotive's cab to let the engineer know if the train is ready to depart or if an emergency stop is needed. Occasionally, before the train departs at each station, the conductor will let more than one child become a Guest Conductor, where they say "All aboard!" through the conductor's microphone and given a free Guest Conductor souvenir card. The WDWRR is operated by Main Street Operations, which also operates an antique double-decker bus, a jitney, a fire engine, and a horse-drawn street trolley in the Main Street, U.S.A. section. When the WDWRR closes each night during the fireworks show, due to its track running close to the fireworks staging area, the trains unload the last