Statistics Portugal

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TKEY CHALLENGES IN AIR TRANSPORT STATISTICS


THE PORTUGUESE EXPERIENCE

• Statistics Portugal
• Economic Statistics Department
• Domestic Trade, Tourism and Transport
  Statistics Unit

Belgrade, November 27, 2012

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Portugal - member of the EU since 1986 -
population 10,6 million
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Information requirements

REGULATION (EC) No 437/2003 OF THE EUROPEAN
PARLIAMENT AND OF THE COUNCIL of 27 February
2003 on statistical returns in respect of the
carriage of passengers, freight and mail by air
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Information requirements

COMMISSION REGULATION (EC) No 1358/2003 implement
ing Regulation (EC) No 437/2003 of the European
Parliament and of the Council on statistical
returns in respect of the carriage of passengers,
freight and mail by air and amending Annexes I
and II thereto
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Information requirements
COMMISSION REGULATION (EC) No 546/2005 of 8
April 2005 adapting Regulation (EC) No 437/2003
of the European Parliament and of the Council as
regards the allocation of reporting-country codes
and amending Commission Regulation (EC) No
1358/2003 as regards the updating of the list of
Community airports COMMISSION REGULATION (EC)
No 158/2007 of 16 February 2007 amending
Commission Regulation (EC) No 1358/2003 as
regards the list of Community airports

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National data sources

Manages the main airports in the Mainland and
Islands
Airport central administration
Collects data from the Airport Central
Administration but also from the smaller
airports, especially in some Islands (Azores)
where the Regional Government is the
administrator
National authority foraviation
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Data supply chain

Airline 1
Airline n
Airport 1
Airport n
Airports central administration
Press releases Publications On line indicators
National authority foraviation
Statistics Portugal
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National data sources the early days

Statistics Portugal promoted close contact
with Airports central administration and
National authority for aviation - In order to
achieve high involvement and determination to
adapt their computer systems and harmonize
nomenclatures - So that all movements are
registered (some flaws were detected)
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Passengers
ICAO country identifier code
Direct transit passengers
Source Eurostat
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Classifications

ICAO - The International Civil Aviation
Organization ICAO country code document
7910 2-letter code Concatenation of First
digit - the ICAO Aeronautical fixed service area
codes Second digit - ICAO country identifier
codes
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Classifications

ICAO airport code 4-letter ICAO codes
(alphanumeric Concatenation of First digit -
the ICAO Aeronautical fixed service area codes
Second digit - ICAO country identifier codes
Third and fourth digit - national
telecommunication centre identifier codes
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Classifications

Air transport operator code 1EU Airlines
licensed in the European Union 1NE Airlines not
licensed in the European Union ZZZ Unknown
airlines 888 "confidential" (tables A1 and B1 if
an "information on the airline" is not allowed
for confidentiality reasons) 999 all airlines
(in table C1 only)
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Classifications
ICAO aircraft type 4-letter of the ICAO aircraft
type designators - Document 8643

Source http//www.icao.int/publications/DOC8643/P
ages/default.aspx
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Information requirements

Table A1 - Flight stage dataset Scope
commercial aviation Periodicity monthly
basis Variables flight stage data registered
for airport-to-airport routes broken down by
arrivals/departures, scheduled/non scheduled,
passenger service/ all-freight and mail service,
airline information and aircraft type Values
passengers, freight and mail on board, commercial
air flights and passenger seats available
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Information requirements
Table A1 - Flight stage dataset

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Information requirements

Table B1 - On flight origin / destination
dataset Scope commercial
aviation Periodicity monthly basis Variables
flight origin/destination data registered for
airport-to-airport routes, and broken down by
arrivals/departures, scheduled/non scheduled,
passenger service/all-freight and mail service
and airline information. Values passengers
carried and freight and mail loaded or unloaded
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Information requirements

Table B1 - On flight origin / destination
dataset
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Information requirements

Table C1 - Airport dataset Scope
commercial aviation General aviation Periodicity
annual (at least) Variables airport data
registered for declaring airports, and broken
down by airline information Values total
passengers carried, total direct transit
passengers , total freight and mail loaded or
unloaded, total commercial aircraft movements and
aircraft movements
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Information requirements

Table C1 - Airport dataset (1)
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Information requirements

Table C1 - Airport dataset (2), if available
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Information requirements

Exclusions Exclusion of A1 and B1 Airports
handling more than 15 000 and less than 150 000
passengers per year report only C1 (airport
dataset) (category 1) Total exclusion Airports
handling less than 15 000 passengers units
annually(category 0)
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Information requirements

Categories and exclusions in Portugal
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Data quality checks

Some of the checks produced by Eurostat Consiste
ncy over time/Passengers Consistency over
time/Freight and mail Consistency over
time/Commercial air flights Comparison between
arrivals and departures Interdataset
checks/Passengers Interdataset checks/Freight and
mail Seats available check Mirror checks Missing
routes check
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Data quality checks

Consistency over time - Passengers Consistency
over time - Freight and mail Consistency over
time - Commercial air flights Applied on A1 and
B1 Different thresholds for different magnitudes
- Checks not problematic
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Data quality checks

Comparison between arrivals and
departures Applied on A1 and B1 only to
passengers Thresholds are tight
- Checks are a problem, due to population
flows and alternative means of transport (ferry)
between islands
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Data quality checks

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Data quality checks

Interdataset checks/Passengers Interdataset
checks/Freight and mail Applied on A1
C1 B1 C1 Thresholds are adequate
- Efficient codification
good coherence!
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Data quality checks

Seats available check /passengers Aircraft
profile tables - have the average capacity (seats
available) and (often) the maximum capacity
Problems - In some short/medium distance
flights with large demand, the real capacity of
the aircraft can be adjusted less fuel and cargo
capacity provide more offer (these cases must be
identified in the database and corrected) -
Aircrafts adapted with more seats
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Common use of same definitions

• Commercial aircraft movement
• An aircraft movement performed for remuneration
  or for hire.
• Includes
• commercial air service movements
• commercial general aviation operations.

Source Transport glossary (Eurostat/ITF/UNECE)
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Common use of same definitions
Commercial air service An air transport flight
or series of flights for the public transport of
passengers and/or freight and mail, for
remuneration or for hire. The air service may be
either scheduled or non-scheduled.
Source Transport glossary (Eurostat/ITF/UNECE)
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Common use of same definitions

General aviation operations commercial All
commercial civil aviation operations other than
scheduled air services and non-scheduled air
transport operations for remuneration or hire.
The main categories of commercial general
aviation are as follows a) Air taxi b)
Photographic c) Sightseeing trips d)
Advertising e) Agricultural/crop spraying f)
Medical/air ambulance trips g) Other commercial.
Source Transport glossary (Eurostat/ITF/UNECE)
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Common use of same definitions

• General aviation operations non-commercial
• All non-commercial civil aviation operations
  other than scheduled air services and
  non-scheduled air transport operations for
  remuneration or hire. The main categories of
  non-commercial general aviation are as follows
• State Flight
• b) Instructional flying
• c) Private flying
• d) Business flying
• e) Parachute and glider launch flights
• f) Technical stops
• g) Test flight
• h) Positioning flight
• i) Other non-commercial.

Source Transport glossary (Eurostat/ITF/UNECE)
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Major difficulties

Transformation of OD data to flight stage
data Airports Aircrafts Transport operators Need
to ensure that airport database is understandable
and convertible
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Major difficulties

Systematic data codification Airports Aircrafts
Transport operators Requires IT support,
computer programming
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Major difficulties

Assess the seats offered Tables available have
average capacity Aircrafts often have higher
capacity (seats added to the initial construction
layout) which may lead to distorted occupancy
rates
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Major difficulties

Aircraft seats available, example of reference
table
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For the future

Keeping high involvement from airport
administrations in order to - respect
datelines - have mutual trust and eliminate any
doubts about safety procedures with confidential
data
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For the future

Keeping high involvement from national authority
in order to - have help understanding the air
transport sector dynamic (companies,, ...) - get
support on validation whenever may be necessary
(effects of the bad weather, ...)
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For the future

New information needs, Commission and AESA Data
with breakdown by type of aircraft (aircraft-km,
number of cycles) True origin / destination,
number of transfers, ... But... One step at a
time!
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Key challenges

Thank you for your attention! (rute.cruz_at_ine.pt)
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