|
For any question on data and metadata, please contact: Eurostat user support |
|
|||
1.1. Contact organisation | Statistics Portugal (INE) - National Statistical Institute |
||
1.2. Contact organisation unit | Statistics Portugal - Economic Statistics - Sectoral Business Statistics Unit |
||
1.5. Contact mail address | Av. António José de Almeida 1000-043 LISBOA Portugal |
|
|||
2.1. Metadata last certified | 31/08/2021 | ||
2.2. Metadata last posted | 31/08/2021 | ||
2.3. Metadata last update | 31/08/2021 |
|
|||
3.1. Data description | |||
Maritime transport data refer to gross weight of goods (in tonnes), passenger movements (in number of passengers) as well as for vessel traffic (in number of vessels and in gross tonnage of vessels). |
|||
3.2. Classification system | |||
The following classifications are applicable: Maritime Coastal area: the nomenclature is based on the Geonomenclature (the country nomenclature for the external trade statistics of the Community and statistics of trade between Member States, originally drawn up by the Council Regulation (EEC) N°1736/75) in force in the year to which the data refer (RAMON: https://showvoc.op.europa.eu/#/datasets/ESTAT_Geonomenclature_2021_%28GEONOM_2021%29/data). Ports: the codes used are the official UN/LOCODEs, when they exist. If a port does not have an official UN/LOCODE a provisional (numeric) code is attributed to the port. As soon as an official UN/LOCODE is attributed by the United Nations Economic Commission for Europe (UNECE) to the port at the request of the competent national authority, the provisional (numeric) code is replaced by the final official one. In exceptional cases (see for example one-port transport or special aggregation for minor ports) permanent numeric codes are attributed to special locations or activities. The code list of UN/LOCODE is available by country through the following link: http://www.unece.org/cefact/locode/service/location.html. According to the relevant directive, Eurostat draws up a list of ports, coded and classified according to countries and maritime coastal areas. The list of ports is included in implementing legal acts and as such is published in the Official Journal of the European Union (the "official" list). The most recent list of ports published in the Official Journal is found in Commission Decision (EU) 2018/1007 Nationality of registration of vessels: the nomenclature used is the Geo-nomenclature (the country nomenclature for the external trade statistics of the Community and statistics of trade between Member States, originally drawn up by the Council Regulation (EEC) N°1736/75) in force in the year to which the data refer (RAMON: https://showvoc.op.europa.eu/#/datasets/ESTAT_Geonomenclature_2021_%28GEONOM_2021%29/data). The type of ship classification is harmonised with an internationally agreed International Classification of Ship by Type (ICST). The type of cargo classification, available in Directive 2009/42/EC, has been established in conformity with the United Nation ECE Recommendation N°21. |
|||
3.3. Coverage - sector | |||
Maritime transport survey concerns the carriage of goods and passengers by sea-going vessels, on voyages undertaken wholly or partly at sea. The data collected from the National Institute of Statistics are port statistics: information on goods handled in ports, passengers embarked and disembarked and vessel traffic. Detailed information is collected on the type of cargo and passengers, geographical areas where the partner ports are located, type, size and nationality of ships used to carry out that transportation.
|
|||
3.4. Statistical concepts and definitions | |||
Main concepts used in this domain are the following and for more information on the concepts and methodology, please consult the Reference Manual on Maritime Transport Statistics.
Port -A place having facilities for merchant ships to moor and to load and/or unload cargo or to disembark and/or embark passengers to or from vessels, usually directly to a pier.
Bunkers and stores supplied to vessels shall be excluded from the scope. Seagoing vessel -Floating marine structure with one or more surface displacement hulls. In the context of the Directive, sea-going vessels are vessels other than those which navigate exclusively in inland waters or in waters within, or closely adjacent to, sheltered waters or areas where port regulations apply. Swap bodies are excluded. Although without internal volume flats used in maritime transport should be considered to be a special type of container and therefore are included here. For a fuller description, reference should be made to ISO 668 and 1496.The related term "container cargo" refers to containers, with or without cargo, which are lifted on or off the vessels which carry them by sea. Ro-Ro unit- This means wheeled equipment for carrying cargo, such as a truck, trailer or semi-trailer, which can be driven or towed onto a vessel. Port or ships' trailers are included in this definition. Classifications should follow United Nations ECE Recommendation No 21 'Codes for types of cargo, packages and packaging materials'. Live animals on the hoof are included. Vehicles being transported as cargo as opposed to a means of transport for freight are recorded in the separate headings of the Ro-Ro cargo classification, when they are rolled on or rolled off a vessel on their own wheels.
|
|||
3.5. Statistical unit | |||
The data used in the domain are collected at port level. |
|||
3.6. Statistical population | |||
Detailed data are provided for ports handling more than one million tonnes of goods or recording more than 200 000 passenger movements annually (Main ports). The other ports are required to provide summary data. However, detailed data may be included also for minor ports on a voluntary basis. |
|||
3.7. Reference area | |||
Portugal |
|||
3.8. Coverage - Time | |||
The data has been avaiable since 1997. |
|||
3.9. Base period | |||
Not applicable. |
|
|||
The units used depend on the variables collected within each data set and are: gross weight of goods expressed in thousands of tonnes; number of passengers in thousands, number of vessels.
TEUs: Twenty feet equivalent units, expressed in units or in thousands depending on the table. TEU calculation coefficients: |
|
|||
Quarters for datasets A1, A2, C1, C2, D1, F1 and F2. |
|
|||
6.1. Institutional Mandate - legal acts and other agreements | |||
National Level:
European Level:
|
|||
6.2. Institutional Mandate - data sharing | |||
Not applicable. |
|
|||
7.1. Confidentiality - policy | |||
National level:
European level:
|
|||
7.2. Confidentiality - data treatment | |||
Article 4 of Commission Decision 2001/423/EC mention that: "the highest level of detail in which data may be published or disseminated is the level of port to and from maritime coastal area. The Commission may however publish at more aggregate level if the quality and/or completeness of information are not appropriate in such detail." |
|
|||
8.1. Release calendar | |||
A release calendar is available on the Statistics Portugal website (https://www.ine.pt/xportal/xmain?xpgid=ine_main&xpid=INE&xlang=en). Monthly and quarterly information is available 3 months after the respective reference period. |
|||
8.2. Release calendar access | |||
https://www.ine.pt/xportal/xmain?xpid=INE&xpgid=ine_dispinfest |
|||
8.3. Release policy - user access | |||
Data is made available for all users at the same time. On the dissemination date, a press release is made and publicized on Statistics Portugal website. Several indicators are updated monthly and available for public consultation on the website. |
|
|||
Quarterly maritime transport statistics are published within 10 months after the reference period and annual maritime transport statistics within 16 months after the reference period. In Portugal maritime transport statistics are published monthly, quarterly and annually. |
|
|||
10.1. Dissemination format - News release | |||
There is a press release about all times of quarterly and annual disclosure of information. |
|||
10.2. Dissemination format - Publications | |||
A publication is made available within 11 months after the end of reference year. The publication contains data on freight and passenger transport for every mode of transport: rail, road, maritime, inland waterways and air transport. Some tables with results are also disseminated with the publication. The publication is in Portuguese (the introduction is in both Portuguese and English). |
|||
10.3. Dissemination format - online database | |||
The INE website has several monthly and annual indicators for the survey on maritime transport of passengers and goods. |
|||
10.4. Dissemination format - microdata access | |||
Not applicable. |
|||
10.5. Dissemination format - other | |||
Not applicable. |
|||
10.6. Documentation on methodology | |||
A metodological survey document is also available in the Statistics Portugal Integrated Metadata System (http://smi.ine.pt). The information is only available for download in Portuguese. |
|||
10.7. Quality management - documentation | |||
Not applicable. |
|
|||
11.1. Quality assurance | |||
Validations are made to all variables of the datafiles individually and also validations of consistency between datafiles. They are also carried out a series of checks to ensure data quality. If needed, respondents are contacted to provide details and correct data if necessary. |
|||
11.2. Quality management - assessment | |||
Not applicable. |
|
|||
12.1. Relevance - User Needs | |||
The main users of Maritime Transport Statistics are national (Statistics Portugal) and local authorities, public and private research institutes both national and international. |
|||
12.2. Relevance - User Satisfaction | |||
Not applicable. |
|||
12.3. Completeness | |||
All data requested by Regulation 1090/2010 and Directive 2009/42/EC are transmitted. |
|
|||
13.1. Accuracy - overall | |||
The overall accuracy is considered good, given the validations / corrections made if there are errors in the datafiles. |
|||
13.2. Sampling error | |||
Not applicable for maritime transport data collection. |
|||
13.3. Non-sampling error | |||
No estimates of measurement errors are available. However, some measuring errors may occur as a result of codification errors by respondents.The existence of “unknown codes” instead of specific codes for type of goods, region of loading/unloading is also a factor which will reduce the accuracy of maritime transport statistics. |
|
|||
14.1. Timeliness | |||
Quarterly data should be transmitted by Member States to Eurostat within five months of the end of the period of observation; annual data within eight months. The Commission (Eurostat) shall disseminate appropriate statistical data with a periodicity comparable to that of the results transmitted (Directive 2009/42/EC). |
|||
14.2. Punctuality | |||
Quarterly and annual information is sent to Eurostat as specified in Directive 2009/42 / EC. |
|
|||
15.1. Comparability - geographical | |||
Geographical comparability is obtained via the application of common concepts and validation rules. The harmonised interpretation of the methodology is enhanced by the organisation of regular meeting of the Working Group on Maritime Transport Statistics, where all reporting countries are represented. |
|||
15.2. Comparability - over time | |||
There might be a break in time series for certain variables in 2008, due to the change in the nomenclature applied for the classification of goods (NST 2007). |
|||
15.3. Coherence - cross domain | |||
The comparison of data between domains is not always possible due to the methodological differences between surveys of the different modes of transport. |
|||
15.4. Coherence - internal | |||
The quality checks include intra-dataset checks and inter-datasets checks. These quality checks detect data that could possibly be in error. All errors are corrected before publications. |
|
|||
As the entire operation is carried out using electronic means, this survey has low costs for the reporting units. |
|
|||
17.1. Data revision - policy | |||
Data is revised in order to include some late corrections made by the respondents. |
|||
17.2. Data revision - practice | |||
Monthly port traffic data are provisional for the current year. With each monthly release the data can be corrected and supplemented with new data. With annual release in July the data become final. |
|
|||
18.1. Source data | |||
The sending of data to INE is the responsibility of the Port Administrations. |
|||
18.2. Frequency of data collection | |||
Monthly. |
|||
18.3. Data collection | |||
The data is collected in the format specified by the Directive. |
|||
18.4. Data validation | |||
The quality control of information provided by Port Administrations is carried out at two levels. The first data quality control occurs in the process of integrating the “.txt” files in the database data through an application made in Visual Basic, being submitted to a set of validations of internal data coherence (according to a validation grid implemented in the application, which falls directly on each of the files and on the crossing of the variables of the several files that make up this survey). In a second phase, the global coherence of information is analysed, based on a time series analysis and crossing with other information, such as that resulting from situations of inconsistencies detected in the comparison with the statistical data published by the ports themselves. In both phases, it is expected that actions to request clarification on possible filling questions. |
|||
18.5. Data compilation | |||
Data entry: Electronic collection. Encoding: The files are already received with the necessary encodings, being only necessary validate them, which is done automatically. Software used: The project support application was developed in VB.net (Visual Basic .net). |
|||
18.6. Adjustment | |||
The data can be adjusted annually in the preparation of the final results. |
|
|||
Not applicable. |
|
|||
|
|||