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D5 Annex report WP 7: ETISDatabase methodology ... - ETIS plus

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<strong>D5</strong> <strong>Annex</strong> <strong>WP</strong> 7: <strong>ETIS</strong> DATABASE METHODOLOGY AND DATABASE USER<br />

MANUAL – PASSENGER TRANSPORT SUPPLY<br />

Remarks concerning method<br />

variable computation<br />

Tariffs for air transport are updated daily in a ticket consolidators data base and three times per day on commercial<br />

booking systems. In addition most tariffs are “subject to availability”, meaning, even when set up well defined trip<br />

purpose specific rules (e. g. booking in 14 days in advance, weekend­stay, etc.) varying tariffs, just depending on the<br />

booking situation, apply to every set of rules defined. Therefore a function deriving average costs from available tariffs<br />

has to be used in addition. This function takes also into account, which passenger fees and aircraft specific handling<br />

fees apply for a distinct airport, which are available from the ICAO.<br />

R20040089.doc<br />

27 May 2004<br />

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