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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | INE (Instituto Nacional de Estatística) - Statistics Portugal |
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1.2. Contact organisation unit | Economics Statistics Department - Sectorial Business Statistics Service |
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1.5. Contact mail address | ana.grade@ine.pt |
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2.1. Metadata last certified | 15/11/2023 | ||
2.2. Metadata last posted | 15/11/2023 | ||
2.3. Metadata last update | 15/11/2023 |
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3.1. Data description | |||
Mandatory data collection at EU level is based on legal act, the Regulation EU 2018/643 and covers goods and passengers.
Data on the transport of passengers and goods include national and international transport performed by Portuguese undertakings. National rail transport of passengers / goods is understood as transport in which both the commencement of the journey / loading and the end of the journey / unloading took place on the territory of Portugal. International freight transport by rail includes the carriage of:
International passenger rail transport is understood as transport which the beginning take place in Portugal and the end of the journey take place outside Portugal.
Transport survey in accordance with Regulation (EU) 2018/643 of the European Parliament and of the Council of 18 April 2018 on rail transport statistics (Journal of Laws UE L 112 of 02.05.2018, p. 1); The collection data of railway transport consists of:
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3.2. Classification system | |||
Statistics on carriage of goods by railway apply the following statistical classifications:
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3.3. Coverage - sector | |||
Railway undertakings providing transport of passengers or goods, i.e., entities of the national economy with a license to rail transport services. Railway infrastructure manager. |
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3.4. Statistical concepts and definitions | |||
The main concepts used in rail domain are:
Intermodal transport it’s transport of loads in loading units that use two or more modes of transport without reloading loads when changing branches of transport. Traction rolling stock, passenger and freight carriages are vehicles in operation of the rapporteur entered in the register of rail vehicles; including those handed over for repair and under repair as well as vehicles temporarily staying abroad and vehicles operated under contracts, e.g. leasing, credit, etc .; excluding vehicles transferred to other entities. Private wagons are wagons that are not vehicles of railway carrier. Transit means railway transport through the territory of the rapporteur country between two places (place of loading / departure and place of unloading / departure) outside the territory of the reporting country. It is not considered a transittransport including loading/beginning of the journey goods/passengers at the border of the rapporteur's country from / to another means of transport. The main concepts used in railway transport statistics are the following, more details can be found in the railway transport methodology manual: |
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3.5. Statistical unit | |||
Statistical units for rail transport statistics are all railway stations. The reporting units for railway transport statistics are:
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3.6. Statistical population | |||
Data on passenger and freight transport are collected from the railway undertakings operating at national territory within thresholds mentioned in the rail regulation.
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3.7. Reference area | |||
Operational railway network on national territory. Data includes reporting units with licenses. |
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3.8. Coverage - Time | |||
Data on passengers are available from 1977 onwards. Data on goods are available since 1986. |
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3.9. Base period | |||
Not applicable. |
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The volume and performance of rail freight traffic are measured in tonnes (mass) and tonne-kilometres. Passenger transport by rail is measured in the number of passengers and in passenger-kilometres. Information on the number of train kilometres is also available. Data are collected in tonnes, tonne-kilometres, vehicle-kilometres and in number of journeys (journey data) or in number of basic transport operations (BTO (goods related data)). |
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Period of observation are cover passengers and goods transport during the month / year reporting. |
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6.1. Institutional Mandate - legal acts and other agreements | |||
European level: |
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6.2. Institutional Mandate - data sharing | |||
From Eurostat : Eurostat submits annually semi-aggregated data (data exchange tables, see Commission Regulation (EU) No 202/2010 amending the Commission Regulation (EC) 6/2003) back to the reporting countries so that they can compile the total railway transport on their national territories, including the operations by national hauliers and also those of all other reporting countries. These data exchange tables include more detailed breakdowns than the publicly available tables. They also include, for each value, the information on the number of observations that the estimates are based on. In this way, the reporting countries can estimate the reliability of results that they aggregate from the data exchange tables. |
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7.1. Confidentiality - policy | |||
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7.2. Confidentiality - data treatment | |||
All railway transport microdata are treated as if they were confidential. This means the following:
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8.1. Release calendar | |||
All railway transport statistics are published on Statistics Portugal site (www.ine.pt) Relases dates are publicly available on on Statistics Portugal site (www.ine.pt) |
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8.2. Release calendar access | |||
Release Calendar can be found in www.ine.pt |
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8.3. Release policy - user access | |||
Railway transport statistics are available free of charge to all users. More detailed information or other layouts can be obtained for a fee. All the release data in railway transport is available to all users in the same time. Before the data will be available on the site, the publication about Transport Activity results will be published. |
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Monthly – Database od Satistics Portugal (www.ine.pt) Quarterly – Press release about Transports Activities (www.ine.pt) Annually – Transport and Communications Statistics (annual Publication) (www.ine.pt)
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10.1. Dissemination format - News release | |||
Quartly press releases. |
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10.2. Dissemination format - Publications | |||
Annually – Transport and Communications Statistics (annual Publication) (www.ine.pt) |
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10.3. Dissemination format - online database | |||
National online database (www.ine.pt) and Eurostat database |
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10.4. Dissemination format - microdata access | |||
Not applicable. Microdata in not available to users due to statistical confidentiality. |
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10.5. Dissemination format - other | |||
Not applicable |
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10.6. Documentation on methodology | |||
National level: Statistics Portugal add methodological notes to each publication with basic informations. Also on the website of the Statistics Portugal there is a description about survey for railway transport of goods and passengers. More detailed informations are available only for employees on internal network. |
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10.7. Quality management - documentation | |||
For each project, there is a Metodological Document available in the National Metadata System (www.ine.pt) |
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11.1. Quality assurance | |||
Quality policy is defined and made available to the public. An organisational structure and tools are in place to deal with quality management. There are procedures in place to plan, monitor and improve the quality of the statistical processes. |
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11.2. Quality management - assessment | |||
Data quality can be assessed as high. There is a set of validation rules and quality checks put in place, which detect various types of issues. In case of any issues detected, the data providers are contacted to provide explanations or/and revise the data accordingly. |
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12.1. Relevance - User Needs | |||
The purpose of collecting railway transport data is to provide information on the level and structure of transport services and on the transport potential for the purposes of shaping economic policy as well as transport market analysis and research. At an Internal level:
At a National level:
At the level of individuals:
At a Interational level:
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12.2. Relevance - User Satisfaction | |||
There was no user survey on railway transport statistics data carried out so far. |
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12.3. Completeness | |||
The data collection on rail transport statistics follows the provisions of the Regulation 2018/643.All variables in all data sets are provided. |
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13.1. Accuracy - overall | |||
Overall accuracy of the railway transport of passengers and goods statistics is good. The processing with several plausibility checks as well as checks done before transmitting data to Eurostat give a high accuracy of the data. |
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13.2. Sampling error | |||
Not applicable. |
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13.3. Non-sampling error | |||
Errors: Under coverage – not applicable, Over coverage – not applicable, Survey instrument – not applicable, Respondent – 5% Unit (non)response – under 5%, Processing errors – not relevant, Model assumptions errors – not applicable
In order to eliminate the above errors, the following tasks are carried out:
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14.1. Timeliness | |||
Data are normally updated once per quarter, annualy or quinquenally. If new annual data (all four quarters of a calendar year) have become available, the annual datasets are also updated together with the quarterly datasets. |
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14.2. Punctuality | |||
Railway transport data are transmitted to Eurostat during 3 months of reporting quarter, 5 months (transport of goods) or 8 months (transport of passengers) after the end of the reference period, as specified in the Regulation (EU) 2018/643 Most data is transmitted on time. |
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15.1. Comparability - geographical | |||
There are no problems of comparability for railway transport data collection with a very high data comparability across countries due to the common legal basis. Comparisons of the data regarding railway transport with Eurostat (so-called mirror checks) allow further the detection of possible inconsistencies which can be corrected if possible. |
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15.2. Comparability - over time | |||
As from 2004 the statistics on railway transport are comparable over time, as they are collected following fully the provisions of the legal act – Regulation 91/2003 as amended. Time series checks are regularly made to detect inconsistencies in the data. There were no time series breaks. |
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15.3. Coherence - cross domain | |||
There are no other data sources with which to compare statistics on railway transport. |
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15.4. Coherence - internal | |||
Stable methodology, statistical results consistent at national level, within a given data set and in a time series. Statistics Portugal does not conduct any other research regarding railway transport of passengers and goods which could be inconsistent with regulation 2018/643. |
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Cost and Burden of production of a railway transport statistics is difficult to estimate. |
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17.1. Data revision - policy | |||
No preliminary adjustments are applied because the preliminary and final data are taken as annual data. There are no rules by which we verify data for dissemination purposes. |
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17.2. Data revision - practice | |||
There were made corrections in data if undertakers review data. |
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18.1. Source data | |||
The main data source are: - CP - Fertagus - Takargo - Medway and IMT (National transport and Mobility Institute)
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18.2. Frequency of data collection | |||
Reports are collected monthly and annually. |
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18.3. Data collection | |||
The forms are sent and received by e-mail. |
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18.4. Data validation | |||
National level :
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18.5. Data compilation | |||
Simultaneously with the collection of the questionnaires, the verification / criticism process is carried out of them, where the compatibility of the information is verified, for a first analysis of the quality of filling. Subsequently, the questionnaires are coded. Once encoded, data is recorded using the respective program, which includes validation rules (on line or batch) or limits for the data and rules of proportion between them. Finally, in the results calculation phase, an analysis is made of the variations counterparts. |
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18.6. Adjustment | |||
Rail transport data are corrected once a year. |
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no comments |
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