Revenue passenger kilometer
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A passenger (also abbreviated as pax) is a person who travels in a
vehicle A vehicle (from la, vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses, mobility scooters for disabled people), railed vehicles (trains, trams), ...
, but does not bear any responsibility for the tasks required for that vehicle to arrive at its destination or otherwise operate the vehicle, and is not a steward. The vehicles may be
bicycle A bicycle, also called a pedal cycle, bike or cycle, is a human-powered or motor-powered assisted, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A is called a cyclist, or bicyclist. B ...
s, buses,
passenger train A passenger train is a train used to transport people along a railroad line. These trains may consist of unpowered passenger railroad cars (also known as coaches or carriages) hauled by one or more locomotives, or may be self-propelled; self p ...
s,
airliner An airliner is a type of aircraft for transporting passengers and air cargo. Such aircraft are most often operated by airlines. Although the definition of an airliner can vary from country to country, an airliner is typically defined as an ai ...
s,
ship A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished ...
s, ferryboats, and other methods of transportation. Crew members (if any), as well as the driver or pilot of the vehicle, are usually not considered to be passengers. For example, a
flight attendant A flight attendant, also known as steward/stewardess or air host/air hostess, is a member of the aircrew aboard commercial flights, many business jets and some government aircraft. Collectively called cabin crew, flight attendants are prima ...
on an airline would not be considered a passenger while on duty and the same with those working in the
kitchen A kitchen is a room or part of a room used for cooking and food preparation in a dwelling or in a commercial establishment. A modern middle-class residential kitchen is typically equipped with a stove, a sink with hot and cold running wate ...
or restaurant on board a ship as well as cleaning staff, but an employee riding in a company car being driven by another person would be considered a passenger, even if the car was being driven on company business.


Railways

In
railway Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a p ...
parlance, passenger, as well as being the end user of a service, is also a categorisation of the type of
rolling stock The term rolling stock in the rail transport industry refers to railway vehicles, including both powered and unpowered vehicles: for example, locomotives, freight and passenger cars (or coaches), and non-revenue cars. Passenger vehicles ca ...
used.Simmons, J. and Biddle, G. (Eds.): ''The Oxford Companion to British Railway History: From 1603 to the 1990s'' (Oxford: Oxford University Press, 1997) In the British case, there are several categories of
passenger train A passenger train is a train used to transport people along a railroad line. These trains may consist of unpowered passenger railroad cars (also known as coaches or carriages) hauled by one or more locomotives, or may be self-propelled; self p ...
. These categories include: *Express passenger, which constitutes long distance and high speed railway travel between major locations such as ports and cities. *Semi-fast express passenger, a type of service that is high speed, though stops at selected destinations of high population density en route. *Local passenger, the lowest category of British passenger train, which provides a service that stops at all stations between major destinations, for the benefit of local populations.


No pax

In transportation, a "no pax" trip is a trip without passengers. For example, no-pax flights are
freight Cargo consists of bulk goods conveyed by water, air, or land. In economics, freight is cargo that is transported at a freight rate for commercial gain. ''Cargo'' was originally a shipload but now covers all types of freight, including tran ...
,
ferry A ferry is a ship, watercraft or amphibious vehicle used to carry passengers, and sometimes vehicles and cargo, across a body of water. A passenger ferry with many stops, such as in Venice, Italy, is sometimes called a water bus or water ta ...
,
repositioning cruise A repositioning cruise (repo cruise) is a cruise in which the embarkation port and the disembarkation port are different. This is a less common type of cruise; in the majority of cruises the ship's final destination is the same as the starting p ...
s and positioning flights. Similarly, with a
public transit bus In public relations and communication science, publics are groups of individual people, and the public (a.k.a. the general public) is the totality of such groupings. This is a different concept to the sociological concept of the ''Öffentlichke ...
it can be used at the beginning and end of a driver’s work shift to/from the bus terminal, or in the non-commute leg of a commuter bus service. In such cases, the main display signs on the front and curbside of the bus typically display a message such as “no pax” or “out of service” (sometimes abbreviated as “O/S”).


Legal status

In most jurisdictions, laws have been enacted that dictate the legal obligations of the owner of a vehicle or vessel, or of the driver or pilot of the same, towards the passengers. With respect to passengers riding in cars and vans, the driver may owe a duty of care to passengers, particularly where the passenger's presence in the vehicle can be seen to "confer some benefit on the driver other than the benefit of his or her company or the mere sharing of expenses". In other situations, however,
guest statute A guest statute is a term used in the law of torts to describe a statute that makes it significantly more difficult for a passenger in an automobile to recover damages from the driver for injuries received in an accident resulting from ordinary ...
s may limit the ability of passengers to sue the driver of the vehicle over an accident. Many places require cars to be outfitted with measures specifically for the protection of passengers, such as passenger-side
air bag An airbag is a vehicle occupant-restraint system using a bag designed to inflate extremely quickly, then quickly deflate during a collision. It consists of the airbag cushion, a flexible fabric bag, an inflation module, and an impact sensor. T ...
s. With respect to passengers on commercial vehicles or vessels, both national laws and international treaties require that the carrier act with a certain standard of care. The number of passengers that a vehicle or vessel may legally carry is defined as its
seating capacity Seating capacity is the number of people who can be seated in a specific space, in terms of both the physical space available, and limitations set by law. Seating capacity can be used in the description of anything ranging from an automobile tha ...
.Lee Jr., Lawrence: ''Railway economics and passenger sociology'' (Oxford: Oxford University Press, 1992).


Types


Revenue passenger

A revenue passenger is someone who has paid a transport operator for her or his trip. That excludes non-paying passengers such as airline employees flying on free or nearly-free passes, babies and
children A child ( : children) is a human being between the stages of birth and puberty, or between the developmental period of infancy and puberty. The legal definition of ''child'' generally refers to a minor, otherwise known as a person younger ...
who do not have a seat of their own, etc. However, passengers who paid for their trip with a
frequent-flyer program A frequent-flyer program (American English) or frequent-flyer programme (British English) is a loyalty program offered by an airline. Many airlines have frequent-flyer programs designed to encourage airline customers enrolled in the program ...
mileage award are usually included. This term is used in the transportation industry, in particular in traffic measures such as revenue passenger kilometer (RPK) and revenue passenger mile (RPM).


Revenue passenger kilometres

Revenue passenger kilometres (RPKs) and revenue passenger miles (RPMs) are measures of
traffic Traffic comprises pedestrians, vehicles, ridden or herded animals, trains, and other conveyances that use public ways (roads) for travel and transportation. Traffic laws govern and regulate traffic, while rules of the road include traffic ...
for an
airline An airline is a company that provides air transport services for traveling passengers and freight. Airlines use aircraft to supply these services and may form partnerships or alliances with other airlines for codeshare agreements, in wh ...
flight, bus, or
train In rail transport, a train (from Old French , from Latin , "to pull, to draw") is a series of connected vehicles that run along a railway track and transport people or freight. Trains are typically pulled or pushed by locomotives (often ...
calculated by multiplying the number of revenue-paying passengers aboard the vehicle by the distance
travel Travel is the movement of people between distant geographical locations. Travel can be done by foot, bicycle, automobile, train, boat, bus, airplane, ship or other means, with or without luggage, and can be one way or round trip. Travel c ...
ed. On long-distance buses and trains (and some planes), passengers may board and disembark at intermediate stops, in which case RPMs/RPKs have to be calculated for each segment if a careful total is needed. Revenue passenger miles can be considered the basic amount of "production" that an airline creates. The revenue passenger miles can be compared to the available seat miles over an airline's system to determine the overall passenger load factor. These measurements can further be used to measure unit revenues and unit costs.


References


External links

{{Authority control Transport