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WP 4 tasks and activities for TRANS-TOOLS Air
Module
Updating airports database and O/D air service
matrix (based on VACLAV db)
Cosimo Chiffi, Loredana Zani, Angelo MartinoTRT
Trasporti e Territorio
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• Modelling strategy adopted for including budget
  air services in the O/D airline matrix
• USING WEB-SEARCH ENGINES TO IDENTIFY AIRPORTS
  AND CARRIERS
• RETRIEVING O/D BUDGET PAIRS BOTH FROM AIRPORTS
  AND AIRLINES WEBSITES (main sources with updated
  information)
• SELECTION OF AIRLINES BASED ON FARE STRUCTURE
  (considering also national and regional carriers)
• SELECTION OF O/D PAIRS BASED ON FLIGHT SCHEDULE
  (considering seasonal scheduling and number of
  flights per day)

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A list of 368 low-cost and regional airport
cities and 94 carriers in Europe was retrieved
from web-search engines like easylow.com
Also a complete list of IATA and ICAO codes for
European airports was used to help the detection
process
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Main source low-cost airlines websites (updated
frequently)
Additional source airports websites (timetable,
flights per week period, additional airlines)
Selecting criteria flights operated at least 3
times a week and not seasonal have been considered
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Market complexity in addition to low cost
carriers (LCCs) also national and regional
airlines use to offer budget fares to their
clients on certain routes

• 69 companies considered
• 1165 low-cost connections added to the original
  Vaclav database

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Distances between airports
Distances have been calculated using the
great-circle distance formula, that is the
shortest distance between any two points on the
surface of a sphere measured along a path on the
surface of the sphere The formula needs
latitude (?) and longitude (?) of any airports
considered. Coordinates for new points were
retrieved directly on airports websites or on
the URL worldaerodata.com (based on data provided
by the U.S National Geospatial-Intelligence
Agency)
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Total Flight Time

• 250 knots (463 km/h) for Distances lt300 km
  Aircrafts ATR-42, Fokker 50
• 450 knots (833 km/h) for Distances gt300 km
  Aircrafts A310, A320, B737
• 30 minutes bias added to consider take-off and
  landing operation
• Estimated times have been compared with scheduled
  times for a sample of O/D pairs

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Travel Costs

• Tickets purchased in advance
• no more than 1 week for business
• 1 month for personal purpose
• 3 months for holiday trips

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• The original GIS Vaclav layer has been updated
  and now contains a total of 522 airports,
  covering all European NUTS3 regions where an
  airport with connections of such importance is
  located.
• Missing destinations were found during the
  construction of the O/D budget matrix (based on
  airlines websites) and the check for HUB
  conventional links.
• A total of 91 new points were added to the
  original layer, included airports with seasonal
  flights or not directly related to the O/D matrix.

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All major airports conventional connections were
verified comparing the list of destinations in
the matrix with the actual scheduled
flights. Actual current connections were
retrieved directly on the websites of airports
and operating airlines as well as the OAG
web-search engine used for varying departure dates
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• This check has highlighted that several
  connections were missing (Russia, Ukraine,
  Byelorussia, Turkey and also some national
  flights to/from Athens)
• In total 508 additional O/D connections were
  detected and included in a matrix similar to
  budget flights matrix
• Flight distance and travel time have been
  calculated as for budget services
• A correlation between costs and travel distance
  has been found for each purpose in the original
  O/D matrix and then applied to estimate costs for
  missing connections

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Also a list of 41 connections no more operated
has been identified as well as 12 new airports to
be added to the airport layer