Regional transport statistics (reg_tran)

Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: Eurostat, the Statistical Office of the European Union.


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)



For any question on data and metadata, please contact: EUROPEAN STATISTICAL DATA SUPPORT

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1. Contact Top
1.1. Contact organisation

Eurostat, the Statistical Office of the European Union.

1.2. Contact organisation unit

E3: Transport.

1.5. Contact mail address

2920 Luxembourg LUXEMBOURG


2. Metadata update Top
2.1. Metadata last certified 26/03/2015
2.2. Metadata last posted 03/02/2015
2.3. Metadata last update 22/03/2016


3. Statistical presentation Top
3.1. Data description

Due to the nature of transport, a spatial reference is built into most legal acts dealing with transport statistics. In a few cases, these sources can be directly used for the derivation of regional transport indicators, while other indicators are collected on a voluntary basis. This is the case of the regional transport data collection in which both data types are used.

Three types of regional data can be distinguished depending on their source: two are based on data collections performed on the basis of legal acts (the Maritime and Aviation data) and one is a voluntary data collection (infrastructures, vehicles and road accidents).

Regional data collected on voluntary basis: The current regional data collection taking place on a voluntary basis comprises a set of transport indicators at NUTS 0, 1 and 2[1] levels for the road, railways, inland waterways (infrastructure), vehicle stocks, road accidents. The information collected is then disseminated in Eurostat dissemination database (Eurobase) under “General and regional statistics/Regional statistics by NUTS classification/Regional transport statistics” theme and also mirrored under “Transport/Multimodal data/Regional transport statistics” theme. Annual data collection for infrastructure, vehicle stocks and road accidents was launched at the beginning of 2002 covering both Member States and Candidate countries. Since 2007, it includes EFTA countries as well. Regional data are collected directly from the countries using a questionnaire: data on transport infrastructure, vehicle stocks and road accidents (collected previously – till 2006 – on Excel sheets and then – till 2012 – using on-line questionnaires). Currently regional datasets are provided via EDAMIS application. For the voluntary data collection via EDAMIS portal, the definitions from the 4th edition of the Illustrated Glossary for Transport Statistics (jointly elaborated by Eurostat, ECMT, UNECE) were proposed and countries should use them when transmitting data.

Regional data based on legal acts: For the collection based on legal acts, regional data are actually derived from the information provided by the participating countries in the frame of the legal data collections at port and airport level. Maritime transport data collection is legally based – Directive 2009/42/EC of the European Parliament and of the Council of 6 May 2009 on statistical returns in respect of carriage of goods and passengers by sea (OJ L141 of 6.6.2009, page 29), which is the recast of the original Council Directive 95/64/EC of 8 December 1995. The air transport regional data have been calculated using data collected at the airport level in the frame of draft Council and Parliament Regulation (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).

Within the collection Maritime transport - data aggregated at standard regional levels (NUTS) there are two tables:

  • Maritime transport of passengers at regional level (new methodology);
  • Maritime transport of freight at regional level (new methodology).

Within the collection Air transport - data aggregated at standard regional levels (NUTS) there are two tables:

  • Air transport of passengers at regional level
  • Air transport of freight at regional level

The tables present the evolution of the number of passengers carried (if not available passengers on board) and the volume of freight and mail loaded or unloaded (if not available freight and mail on board) to/from the NUTS regions (level 2, 1 and 0) since 1999. The data is presented at annual level. Before the legal act on air transport statistics was introduced (2003 with 3 years transitional period), air transport statistics have been collected using the statistical questionnaire (voluntary basis). Some countries provided figures for passenger transport taking into account “passengers on board” and some “passenger carried”. Until 2007 reference year, the disseminated numbers of passengers aggregated at regional level are actually a mixture of passengers on board and passengers carried data.
The air transport regional data have been calculated using data collected at the airport level in the frame of the regulatory data collection on air transport. Only airports with more than 150 000 passenger units serviced annually are taken into account when aggregating the data at regional levels, because they provide statistics detailed enough to solve the problem of double counting. For each aggregate it is necessary to start at the airport level in order to identify the mirror declarations, i.e. the airport routes for which both airports report the volume, since these constitute the routes where the problem of double counting occurs. When calculating the total volume in such cases, only the departure declarations of the concerned airports have been taken into account. The problem of the double counting only appears for the calculation of the total passengers but not for the total arrivals (respectively total departures), which corresponds to the sum of the arrivals (respectively departures) at each domestic airport. For the tables presenting maritime data at regional level the same aggregation method (exclusion of double counting) is applied taking into account main ports only. Only for these ports (handling more than one million tonnes of goods or recording more than 200 000 passenger movements annually ) the detailed statistics allow such aggregation.

For some Member States (up to 1998 data) and for others that joint the EU more recently (up to 2002) transport flows through ports and airports had been collected, via questionnaire. Because of the difference in the methodologies applied, the data for air and maritime transport at regional level up to 2002 reference year are available in separate tablesor some Member States (up to 1998 data) and for others that joint the EU more recently (up to 2002) transport flows through ports and airports had been collected, via questionnaire. Because of the difference in the methodologies applied, the data for air and maritime transport at regional level up to 2002 reference year are avilable in separate tables (listed below) and are no longer updated:

  • Maritime transport of passengers by NUTS 2 regions (questionnaire) (tran_r_mapa_om).
  • Maritime transport of freight by NUTS 2 regions (questionnaire) (tran_r_mago_om).
  • Air transport of passengers by NUTS 2 regions (questionnaire) (tran_r_avpa_om).
  • Air transport of freight by NUTS 2 regions (questionnaire) (tran_r_avgo_om).

[1] Regulation (EC) No 1059/2003 of the European Parliament and of the Council of 26 May 2003 on the establishment of a common classification of territorial units for statistics (NUTS) and its amendments. More information on NUTS classification can be found under the following link.

3.2. Classification system

NUTS classification – regions are classified according to the Nomenclature of Units for Territorial Statistics (NUTS). The NUTS serves as a reference for the collection, development and harmonisation of EU regional statistics and for socio-economic analyses of the regions (more information is available on Eurostat's website: http://ec.europa.eu/eurostat/web/nuts/overview).

3.3. Coverage - sector

The Regional Transport Statistics covers:

  1. Regional data on infrastructure (inland waterways, railway network, road network);
  2. Stock of vehicles (freight and passengers);
  3. Road traffic accidents (persons injured and persons killed);
  4. Maritime transport data;
  5. Air transport data.
3.4. Statistical concepts and definitions

Definitions from the Illustrated Glossary for Transport Statistics - 4th edition and variables of interest for regional statistics on road network

Road – line of communication (travelled way) open to public traffic, primarily for the use of road motor vehicles, using a stabilized base other than rails or air strips. Included are paved roads and other roads with a stabilized base, e.g. gravel roads. Roads also cover streets, bridges, tunnels, supporting structures, junctions, crossings and interchanges. Toll roads are also included. Excluded are dedicated cycle lanes.

Road network – all roads in a given area. The road network may be classified according to the surface, e.g.

  • Paved road – road surfaced with crushed stone (macadam) with hydrocarbon binder or bituminized agents, with concrete or with cobblestone.
  • Unpaved road – road with a stabilized base not surfaced with crushed stone, hydrocarbon binder or bituminized agents, concrete or cobblestone.

Motorway / freeway – road, specially designed and built for motor traffic, which does not serve properties bordering on it, and which:

  • Is provided, except at special points or temporarily, with separate carriageways for traffic in two directions, separated from each other, either by a dividing strip not intended for traffic, or exceptionally by other means;
  • Has no crossings at the same level with any road, railway or tramway track, or footpath;
  • Is especially sign-posted as a motorway and is reserved for specific categories of road motor vehicles.

Entry and exit lanes of motorways are included irrespective of the location of the sign-posts. Urban motorways are also included.

Motorcycle – two-, three- or four-wheeled road motor vehicle not exceeding 400 kg (900 lb) of unladen weight. All such vehicles with a cylinder capacity of 50 cc or over are included, as are those under 50 cc which do not meet the definition of moped.

Moped – two, three or four-wheeled road motor vehicle which is fitted with an engine having a cylinder capacity of less than 50cc (3.05 cu.in) and a maximum authorized design speed in accordance with national regulations. Registered and non-registered mopeds in use are included, whether or not they have a number plate. Some countries do not register all mopeds.

Passenger car – road motor vehicle, other than a moped or a motor cycle, intended for the carriage of passengers and designed to seat no more than nine persons (including the driver). Included are: passenger cars, vans designed and used primarily for transport of passengers, taxis, hire cars, ambulances, motor homes. Excluded are light goods road vehicles, as well as motor-coaches and buses, and mini-buses/mini-coaches. "Passenger car" includes micro cars (needing no permit to be driven), taxis and passenger hire cars, provided that they have fewer than ten seats.

Motor-coach, mini-coach, bus or mini-bus – passenger road motor vehicle designed to seat more than nine persons (including the driver). Included are mini-buses and mini-coaches designed to seat more than 9 persons (including the driver).

Bus – passenger road motor vehicle designed to carry more than 24 persons (including the driver), and with provision to carry seated as well as standing passengers. The vehicles may be constructed with areas for standing passengers, to allow frequent passenger movement, or designed to allow the carriage of standing passengers in the gangway.

Motor coach – passenger road motor vehicle designed to seat 24 or more persons (including the driver) and constructed exclusively for the carriage of seated passengers.

Mini-bus / mini-coach – passenger road motor vehicle designed to carry 10–23 seated or standing persons (including the driver). The vehicles may be constructed exclusively to carry seated passengers or to carry both seated and standing passengers.

Trolleybus – passenger road vehicle designed to seat more than nine persons (including the driver), which is connected to electric conductors and which is not rail-borne. This term covers vehicles which may be used either as trolleybuses or as buses, if they have a motor independent of the main electric power supply.

Lorry / truck – rigid road motor vehicle designed, exclusively or primarily, to carry goods.

Road tractor – road motor vehicle designed, exclusively or primarily, to haul other road vehicles which are not power-driven (mainly semi-trailers). Agricultural tractors are excluded.

Trailer – goods road vehicle designed to be hauled by a road motor vehicle. This category excludes agricultural trailers and caravans.

Semi-trailer – goods road vehicle with no front axle designed in such way that part of the vehicle and a substantial part of its loaded weight rests on a road tractor.

Special purpose road motor vehicle – road motor vehicle designed for purposes other than the carriage of passengers or goods. This category includes: fire brigade vehicles, mobile cranes, self-propelled rollers, bulldozers with metallic wheels or track, vehicles for recording film, radio and TV broadcasting, mobile library vehicles, towing vehicles for vehicles in need of repair, other special purpose road motor vehicles.

Injury accident – any accident involving at least one road vehicle in motion on a public road or private road to which the public has right of access, resulting in at least one injured or killed person. A suicide or an attempted suicide is not an accident but an incident caused by a deliberate act to injure oneself fatally. However, if a suicide or an attempted suicide causes injury to another road user, then the incident is regarded as an injury accident. Included are: collisions between road vehicles; between road vehicles and pedestrians; between road vehicles and animals or fixed obstacles and with one road vehicle alone. Included are collisions between road and rail vehicles. Multi-vehicle collisions are counted as only one accident provided that any successive collisions happen within a very short time period. Injury accidents exclude accidents incurring only material damage. Excluded are terrorist acts.

Person killed – any person killed immediately or dying within 30 days as a result of an injury accident, excluding suicides. A killed person is excluded if the competent authority declares the cause of death to be suicide, i.e. a deliberate act to injure oneself resulting in death. For countries that do not apply the threshold of 30 days, conversion coefficients are estimated so that comparisons on the basis of the 30 day-definition can be made.

Person injured – any person who as result of an injury accident was not killed immediately or not dying within 30 days, but sustained an injury, normally needing medical treatment, excluding attempted suicides. Persons with lesser wounds, such as minor cuts and bruises are not normally recorded as injured. An injured person is excluded if the competent authority declares the cause of the injury to be attempted suicide by that person, i.e. a deliberate act to injure oneself resulting in injury, but not in death.

Railway line – line of communication made up by rail exclusively for the use of railway vehicles. Line of communication is an area equipped for the performance of rail transport.

Railway network – all railways in a given area. This does not include stretches of road or water even if rolling stock is conveyed over such routes, e.g. by wagon carrying trailers or ferries. Lines solely used for tourism are excluded as are railways constructed solely to serve mines, forests or other industrial or agricultural undertakings and which are not open to public traffic.

Track – a pair of rails over which rail borne vehicles can run.

Track gauge – distance between a pair of rails measured between the inside edges of the rail heads.

The following track gauges are in use:

  • Standard gauge: 1.435 m.
  • Large gauge: 1.520 m (example Commonwealth of Independent States), 1.524 m (example Finland), 1.600 m (example Ireland), 1.668 m (example Spain, Portugal).
  • Narrow gauge: 0.60 m, 0.70 m, 0.75 m, 0.76 m, 0.785 m, 0.90 m, 1.00 m.

“Large gauge” is sometimes referred to as “broad gauge”.

Line – one or more adjacent running tracks forming a route between two points. Where a section of network comprises two or more lines running alongside one another, there are as many lines as routes to which tracks are allotted exclusively.

Electrified line – line with one or more electrified running tracks.

The following types of electric current are in use:

  • AC : 25 000 Volts/50 Hz, 15 000 Volts/ 16 2/3 Hz.
  • DC : 3 000 Volts, 1 500 Volts, 750 Volts, 660 Volts, 630 Volts.

Sections of lines adjacent to stations that are electrified only to permit shunting and not electrified as far as the next stations are to be counted as non-electrified lines.

Waterway – river, canal, lake or other stretch of water which by natural or man-made features is suitable for navigation. Waterways of a maritime character (waterways designated by the reporting country as suitable for navigation primarily by seagoing inland waterway vessels) are included. Waterways also include river estuaries; the boundary being that point nearest the sea where the width of the river is both less than 3 km at low water and less than 5 km at high water.

Navigable inland waterway – a stretch of water, not part of the sea, which by natural or man-made features is suitable for navigation, primarily by inland waterway vessels. This term covers navigable rivers, lakes, canals and estuaries. The length of rivers and canals is measured in mid-channel. The length of lakes and lagoons is measured along the shortest navigable route between the most distant points to and from which transport operations are performed. A waterway forming a common frontier between two countries is reported by both.

Navigable river – natural waterway open for navigation, irrespective of whether it has been improved for that purpose.

Navigable lake – natural expanse of water open for navigation. Lagoons (brackish water area separated from the sea by a coastal bank) are included.

Navigable canal – waterway built primarily for navigation.

3.5. Statistical unit

The REGWEB questionnaire is modular: The statistical unit varies from module to module.

See in general metadata devoted to transport and in Illustrated Glossary for Transport Statistics - 4th edition.

3.6. Statistical population

Transport infrastructure at regional level (road, rail and inland waterways network).
Total number of vehicles by vehicles category registered at regional level.
Victims of road traffic accidents represented at the regional level.
Weight of goods and number of passengers counted in the ports and airports respectively, at regional level.

3.7. Reference area

Member States of the European Union; EFTA countries (IS, CH, LI, NO); some European Union Candidate countries (TR). The current regional data collection taking place on a voluntary basis comprises a set of transport indicators at NUTS 0, 1 and 2[1] levels for the road, railways, inland waterways (infrastructure), vehicle stocks, road accidents and also for transport flows through seaports and airports.


[1] Regulation (EC) No 1059/2003 of the European Parliament and of the Council of 26 May 2003 on the establishment of a common classification of territorial units for statistics (NUTS) and its amendments.

3.8. Coverage - Time

Some data collections go back to 1980, while others start more recently.

Annual data collection for transport infrastructure, vehicle stocks and road accidents are available since 1990.

The maritime transport data are available annually since 1997.

The air transport data are available annually since 1993.

Annual data collection for infrastructure, vehicle stocks and road accidents was launched at the beginning of 2002 covering both Member States and Candidate countries. Since 2007, it includes EFTA countries as well. Regional data are collected directly from the countries (administrative data) using a questionnaire: data on transport infrastructure, vehicle stocks and road accidents (collected previously – till 2006 – on Excel sheets and then – till 2012- using on-line questionnaires). Since 2012 regional datasets are provided using an integrated environment for data transmission (EDAMIS).

Transport flows through ports and airports had been collected, via the regional questionnaire, for some Member States up to 1998 data and for others that joint the EU more recently, up to 2002. After these dates, data has been collected within the framework of the legal acts from the seaports or maritime transport operators (in case of maritime transport statistics) and from airports (in case of air transport statistics) and derived from the data available in the maritime and aviation statistics databases for the purpose of regional transport statistics.

Annex F to Regulation (EC) No 91/2003 on rail statistics provides for the collection of regional statistics on goods and passenger transport by rail (five-yearly survey). In general the data are collected from railway undertakings. In 2007 the regional statistics (with the reference year 2005) were delivered to Eurostat for the first time and disseminated in 2008. The data collected for 2010 were submitted to Eurostat on December 2011.

3.9. Base period

Not applicable.


4. Unit of measure Top

The transport infrastructure data on the length of motorways and other roads, the length of the railway network (by type of railway lines) and the length of the waterways network (by type of waterways) is expressed in kilometres.
The stock of vehicles (by type of vehicle) is expressed in absolute numbers and in units per 1000 inhabitants.
The road accident data (persons killed and persons injured) are expressed in absolute numbers, and in absolute numbers per million inhabitants.
The air and maritime transport data are expressed in 1000 for passengers and in thousands of tonnes for the freight.
Please refer to the dedicated Metadata linked to table (tran_r_rapa) for the railway transport – national and international (goods and passengers transport by loading/unloading).
Data collected are reported as of 31st December.


5. Reference Period Top

Data are collected on a yearly base.


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

Most regional indicators are collected on a voluntary basis (see point 3.1).

6.2. Institutional Mandate - data sharing

Not applicable.


7. Confidentiality Top
7.1. Confidentiality - policy

Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

7.2. Confidentiality - data treatment

Regional data are not confidential.


8. Release policy Top
8.1. Release calendar

Not applicable.

8.2. Release calendar access

Not applicable.

8.3. Release policy - user access

In line with the Community legal framework and the European Statistics Code of Practice Eurostat disseminates European statistics on Eurostat's website (see item 10 - 'Accessibility and clarity') respecting professional independence and in an objective, professional and transparent manner in which all users are treated equitably. The detailed arrangements are governed by the Eurostat protocol on impartial access to Eurostat data for users.


9. Frequency of dissemination Top

The regional Eurobase dissemination tables are updated twice a year (after each round of the voluntary data collections).


10. Accessibility and clarity Top
10.1. Dissemination format - News release

No news releases available.

10.2. Dissemination format - Publications

Regional data are the base of the annual Statistics Explained articles (SE) – Stock of the vehicles at regional level, Road safety at regional level, Transport Statistics at regional level and Regional Yearbook (RYB).

The most recent Eurostat Regional Yearbooks in PDF format: RYB 2014, RYB 2013, RYB 2012, RYB 2011.

From 2013 transport data at regional level are also available in the Statistical Atlas (Transport section).

Illustrated Glossary for Transport Statistics - 4th edition

Transport statistics at regional level

Main statistical findings. Please see: http://ec.europa.eu/eurostat/web/transport/publications

10.3. Dissemination format - online database

Eurostat's online database Eurobase (under Transport/Multimodal data/Regional transport statistics) is the most complete and most up-to-date source of European Union regional transport statistics.

10.4. Dissemination format - microdata access

Not applicable.

10.5. Dissemination format - other

Not applicable.

10.6. Documentation on methodology

Methodological notes are available in the different publications containing regional statistics. Definitions of the terms used in the frame of the regional transport statistics are available in the Illustrated Glossary for Transport Statistics - 4th edition.

10.7. Quality management - documentation

See point 11 – Quality management.


11. Quality management Top
11.1. Quality assurance

The quality assurance of the EU regional transport statistics data is based on the following principles:

  • The reporting countries shall use similar methods and definitions in order to produce quality data. However, the sample design, the assurance of a sufficient response rate and the general conducting of surveys is the reporting countries' responsibility.
  • The statistical error (percentage standard error) of the micro-data transmitted to Eurostat shall not be greater than 5% (special conditions apply to smaller countries, see Commission Regulation (EC) 642/2004).
  • Eurostat validates the incoming micro-data, record by record, by applying detailed validation checks, at collection time.
  • Eurostat carries out time series checks with the aggregated data, in particular when preparing publications. Comparisons with nationally aggregated data ("supplementary tables") are also performed.
11.2. Quality management - assessment

A specific emphasis is put on the correctness of the data provided in the frame of the regional transport data collection. More particularly, the respect of the definitions and of the reference period (for instance stock of vehicles as of 31st December) needs to be checked. A way to check methodological issues is to compare data with other sources: crosschecks of the regional data at NUTS 0 level with Common questionnaire data are regularly performed by Eurostat and allow for instance to detect methodological issues.

If countries are not able to provide data according to the definitions commonly agreed, the related footnotes should be supplied in the questionnaire (and will be used when disseminating the figures provided).

The main tools for the assessment of the quality of the aggregated regional data are:

  • Methodological comparisons with the national surveys and the recommended methodology, including coverage of surveys, simplifying assumptions, register quality, sampling rate and response rate.
  • Precision calculations following Commission Regulation (EC) 642/2004.


12. Relevance Top
12.1. Relevance - User Needs

The main users of the EU regional statistics are the European Commission, the national authorities of the EU member states, research institutions and industrial organisations.

The use of regional statistics by administrations is frequently indirect: Data are used by the administrations via studies executed by researchers and other contractors.

12.2. Relevance - User Satisfaction

No specific user surveys on the regional data collection.

For general user satisfaction survey, see the Report on the Eurostat 2014 user satisfaction survey.

12.3. Completeness

The regional data on transport infrastructure network, vehicle stock and road accidents may be incomplete, mostly due to the voluntary nature of the data collection.

Completeness of data is high for air and maritime transport. For these modes, regional data are derived from data collection for which there is an obligation of data provision for the Member States and, as a consequence, there are very few gaps in the data provision since the framework legal act came into force.


13. Accuracy Top
13.1. Accuracy - overall

See 11– Quality management.

13.2. Sampling error

See 11 – Quality management.

13.3. Non-sampling error

See 11 – Quality management.


14. Timeliness and punctuality Top
14.1. Timeliness

Data are usually updated twice a year, after the spring and fall collection round.

14.2. Punctuality

The punctuality generally varies from country to country, from dataset to dataset.

The Regional transport data collection is launched twice a year; voluntary data collection.

Maritime transport: Quarterly data should be transmitted by Member States to Eurostat within 5 months of the end of the period of observation; annual data within 8 months.

Air transport: According to the existing legal basis, countries have 6 months to deliver the data for the reference monthly period.


15. Coherence and comparability Top
15.1. Comparability - geographical

At regional level and when comparing data overtime, data for some regions might not be comparable due to the changes in the NUTS classification.

15.2. Comparability - over time

The comparability over time of the regional transport data derived from the maritime and air transport data collection and of the data collected in the frame of the regional questionnaire is checked using reports allowing detecting abnormal evolutions. In such cases, countries are contacted either to correct the data provided if necessary or to provide the methodological information explaining the evolution observed.

The major events affecting comparability over time are reported in the Country Specific Notes (see Annex 1).

15.3. Coherence - cross domain

Data coherence across the domains is very good for air and maritime transport. Data at regional level (NUTS level 2, 1 and 0) are derived from the data collected for these modes of transport, allowing the implementation of different quality checks to ensure the coherence of the data between the air and maritime transport sections and the data from the regional transport section.

Cross domain comparisons are however not applicable to the data on transport infrastructure network, vehicle stock and road accidents.

15.4. Coherence - internal

The internal coherence of the data collected in the frame of the regional data on transport infrastructure network, vehicle stock and road accidents is ensured during the data provisions thanks to built-in validation rules (e.g. coherence between totals at different NUTS levels and completeness of the data provided).

All discrepancies in the data are also described in a separate methodological document containing Country Specific Notes (see Annex 1).


16. Cost and Burden Top

Not applicable.


17. Data revision Top
17.1. Data revision - policy

According to the data transmission rules, the reporting countries are encouraged to update incomplete or revise datasets referring to previous collection rounds at the same time when they submit new datasets.

Data are revised on the basis of detected errors as well.

17.2. Data revision - practice

After receipt, the data revisions are validated and (if there are no errors or inconsistencies to be clarified with the data providers) uploaded to Eurostat's dissemination tables within the shortest delay possible.


18. Statistical processing Top
18.1. Source data

Data are collected and/or compiled by the competent national authorities, which can be for instance the National Statistical Office, the Civil Aviation Authorities (air transport), the Ministry of Transport (inland waterways, railway and road networks, victims), and the National Maritime Administration (maritime transport).

18.2. Frequency of data collection

The regional data collection on transport infrastructure network, vehicle stock and road accidents is launched twice a year (spring and fall collection round).

The air transport data are provided on a monthly/annual basis while the maritime transport data are provided on a quarterly/annual basis. The detailed data are aggregated at regional levels and disseminated in Eurobase twice a year.

18.3. Data collection

Data are collected and/or compiled by the competent national authorities, which can be for instance the National Statistical Office, the Civil Aviation Authorities (air transport), the Ministry of Transport (inland waterways, railway and road networks, victims), and the National Maritime Administration (maritime transport) and submitted to Eurostat via EDAMIS (the Eurostat's single entry point application for data).


[1] Regulation (EC) No 1059/2003 of the European Parliament and of the Council of 26 May 2003 on the establishment of a common classification of territorial units for statistics (NUTS) and its amendments.

18.4. Data validation

Set of built-in validation rules, which are applied both before the data are transmitted to Eurostat (voluntary data collection) and before integration of the data provided to Eurostat database (aviation and maritime). Additional quality checks are made based on the time series and mirror checks (maritime and aviation).

18.5. Data compilation

Based on the regional data on transport infrastructure network, stock of the vehicles and road accidents the following indicators are calculated with the help of population and area data:

  • Density of motorways network;
  • Density of railway network;
  • Number of people killed in car accidents per million inhabitants;
  • Number of passenger cars per 1000 inhabitants (for a given year, this indicator is calculated on the basis of the stock of vehicles as of 31st December and the population figures as of 1st January of the following year).
18.6. Adjustment

Not applicable.


19. Comment Top

Not applicable.


Related metadata Top


Annexes Top
Country Specific notes _ May 2017