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203 Air levitation: A type of APM train support along the guideway. Airside: The area or side of an airport that is secure, in that all passengers and employees have gone through a security check to enter this area. APM: See automated people mover. APM platform: The barrier wall, door sets, and passenger queuing area within the APM station and adjacent to the APM train or vehicle berthing position. ATC: See automatic train control. ATO: See automatic train operation. ATP: See automatic train protection. ATS: See automatic train supervision. Automated people mover (APM): Fully automated and driverless transit systems that operate on fixed guideways in exclusive rights of way. Automatic station platform doors: The station doors that are automatically controlled and synchronized with train dwells. When closed, the doors are part of a barrier between the passengers and the trains operating on the guideway. Automatic train control (ATC): The APM subsystem that coordinates and controls all operations of the APM system including train movements, switching, vehicle and station door openings, and communications. Automatic train operation (ATO): Performs basic operating functions within the safety constraints imposed by the ATP. Automatic train protection (ATP): Functions to ensure absolute enforcement of safety criteria and constraints. It provides the basic safety functions of the system and typically includes safe spacing of trains (loop or pinched-loop systems), overspeed protection, switch controls, and door controls. Automatic train supervision (ATS): Provides for system supervision by central control computers and permits man- ual interventions/overrides by central control operators using control interfaces. Baggage carts: Four-wheeled wagons that are typically rented at airports to carry the luggage of arriving or depart- ing passengers on airport property. Commonly referred to in Europe as trolley carts. Cable-propelled vehicles: APM vehicles that are propelled via a cable along the guideway. Typically the vehicles are per- manently attached to a cable. CCF: See Central control facility. Central control facility (CCF) (also called central control or central control room): A building or rooms in which the cen- tral control operators perform their tasks and duties; typically houses the system schematic display, the power schematic dis- play, the general system display, the central control console, and related ATC, communications, and control equipment. Center platform configuration: An APM platform configu- ration in which a single platform is located between the two (opposite direction) guideway lanes. Both the alighting and boarding of trains occur on this single platform. Connecting airline: The operation of a single airline at a particular airport where multiple aircraft arrive and a large percentage of arriving airline passengers then proceed to a departing aircraft. Also referred to as hubbing airline. Connecting passenger: An airline passenger who arrives at a given airport via an arriving flight and then connects to a departing flight at the same airport. Also referred to as trans- fer passenger. Consist: The vehicles making up a train. (This term comes from the railroad industry and means the rolling stock, exclu- sive of the locomotive, making up a train.) A P P E N D I X C Glossary
Contiguous terminal configuration: An airport terminal design in which both passenger processing functions (ticket- ing, security, baggage claim) and the aircraft gates are under one roof. Dual-lane shuttle: An APM system alignment configuration in which two trains shuttle back and forth independently on independent guideways usually in synchronized fashion. Dynamic passenger information: Part of the APM systemâs communications package, this electronic signage assists pas- sengers using the system by providing information regard- ing train destinations, door status, and other operational information. Facilities: The buildings, rooms, and guideway that house or physically support the APMâs operating system equipment. Flow-through platform: A three-platform station configura- tion in which the two side platforms accommodate alighting passengers while the center platform accommodates boarding passengers. Geometric constraints: The horizontal and vertical geomet- ric limits used in designing an APM guideway to help ensure rider safety and comfort. Guidebeams: A physical beam that is secured into the guide- way that guides the APM train. Guideway: The track or other riding surface that supports APM trains as they move between stations. Hubbing airline: The operation of a single airline at a partic- ular airport where multiple aircraft arrive and a large percent- age of arriving airline passengers then proceed to a departing aircraft. Also referred to as connecting airline. Landside: The non-secure side of the airport where functions such as ticketing, bag claim, parking, and car rental take place. Loop configuration: An APM system alignment that allows multiple stations to be served with a self-propelled vehicle fleet. Magnetic levitation: A means that suspends, guides, and pro- pels APM vehicles using electromagnetic force. Maintenance and storage facility (MSF): The location for all vehicle maintenance and storage, as well as associated main- tenance equipment and administrative offices. MSF: See maintenance and storage facility. Offline maintenance facility: A mainline facility that is located outside of the APM systemâs operational guideway. APM trains are removed from operational service and positioned in the maintenance facility where maintenance service is then performed. Online maintenance facility: A maintenance facility that is located such that vehicles positioned to receive maintenance services are also located on passenger-carrying guideway, typ- ically at a station. Maintenance is performed during non- operational hours of the APM system. Operating system: The proprietary subsystem equipment of an APM supplier that is essential to the APM systemâs operation. Origin/destination (O/D) passengers: Airline passengers who either start their trip at the particular airport in question (ori- gin) or end their trip at that airport (destination). Passengers per hour per direction (pphpd): A common pas- senger capacity metric used in APM and other airport analysis. Personal rapid transit (PRT): A type of automated transit system that is on-demand, uses an exclusive right-of-way, pro- vides point-to-point service, and usually accommodates no more than three to four passengers per vehicle. Pinched loop: An APM system configuration in which trains travel in a loop by reversing direction via switches at the end- of-line stations. Platform configuration: The number of platforms and their passenger functionality at a given station. Power distribution rails: Rails along the APM guideway that supply power to self-propelled APM trains. pphpd: See passengers per hour per direction. PRT: See personal rapid transit. Remote terminal configuration: An airport terminal design configuration in which passenger processing functions occur in a separate facility from the facility that houses the air- craft gates. Self-propelled vehicles: APM vehicles that include propulsion, braking, and automatic control systems on the vehicle itself. Side guidance rails: Guidance rails located along the exterior or side of the guideway running surface that help to keep the APM train aligned as it moves along the guideway. Single-lane shuttle: An APM alignment configuration in which a single train shuttles back and forth between two end stations on a single guideway. Single-lane shuttle with bypass: An APM alignment config- uration in which two synchronized trains pass each other in the bypass area (centrally located) of the guideway. Single side platform: an APM platform configuration in which boarding/deboarding occur on one side of the guideway. 204
Train control: The APM subsystem that includes command, control, and communications equipment needed to operate the driverless vehicles. Transfer passenger: An airline passenger who arrives at a given airport via an arriving flight and then transfers to a departing flight at the same airport. Also referred to as a con- necting passenger. Transit connection: An intermodal connection (station) between an airportâs landside APM and a regional bus and/or rail transit service. Triple platform: An APM platform configuration in which two side platforms and one center platform serve the stationâs two guideway lanes. Typically passenger alighting occurs to the side platforms and boarding occurs from the center platform. Two side platforms: An APM platform configuration in which boarding/deboarding occurs on either of two platforms, both located at the exterior of the two parallel guideway lanes. Vehicle: The individual unit or car that includes the carbody together with appropriate systems. 205