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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | Turkish Statistical Institute Directorate General of Maritime |
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1.2. Contact organisation unit | Department of Sectoral Statistics Deniz Ticaretini Geliştirme Daire Başkanlığı |
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1.5. Contact mail address | Turkish Statistical Institute (TurkStat) Devlet Mahallesi Necatibey Cad. No:114 06420 Cankaya Ankara/Turkey |
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2.1. Metadata last certified | 11/04/2022 | ||
2.2. Metadata last posted | 11/04/2022 | ||
2.3. Metadata last update | 11/04/2022 |
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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). |
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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. |
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3.3. Coverage - sector | |||
Transport. |
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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.
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3.5. Statistical unit | |||
The data used in the domain are collected at port level. |
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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. |
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3.7. Reference area | |||
Turkey. |
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3.8. Coverage - Time | |||
The data are available since 2004.
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3.9. Base period | |||
Not applicable. |
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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: |
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Quarters for datasets A1, A2, C1, C2, D1, F1 and F2. |
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6.1. Institutional Mandate - legal acts and other agreements | |||
National Level: The Official Statistics Programme (OSP), based on the Statistics Law of Turkey No 5429, is prepared for a 5-year-period in order to determine the basic principles and standards dealing with the production and dissemination of official statistics and to produce reliable, timely, transparent and impartial data required at national and international level. Hence, maritime statistics are disseminated in scope of OSP. European Level:
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6.2. Institutional Mandate - data sharing | |||
Not applicable. |
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7.1. Confidentiality - policy | |||
National level: Procedures and principles regarding data confidentiality and security in statistical production are regulated in Articles 12, 13 and 14 of Turkish Statistical Law No. 5429. "Regulation on Procedures and Principles on Data Confidentiality and Confidential Data Security in Official Statistics" was prepared by TURKSTAT to regulate the confidentiality and security practices in the statistical studies produced within the framework of the Official Statistics Programme and published in the Official Gazette dated 20/06/2006, number 26204. Furthermore, the Law on the Protection of Personal Data No. 6698 dated 24/03/2016 covers "real persons and legal entities that process all personal data in a non-automatic manner, either completely or partially automatic, or part of any data recording system", situated in the Law "Those who process data with data responsibilities can not disclose the personal data they have learned to others in contradiction with the provisions of this Law and cannot use it except for the purpose of processing. This obligation continues after leaving the office " provision of personal data is guaranteed. However, pursuant to Article 28 (b) of the related law, "the processing of personal data with purposes such as research, planning and statistics by bringing the statistical data anonymously" was accepted as an exception. European level:
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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." |
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8.1. Release calendar | |||
Maritime statistics are disseminated according to Official Statistics Program (OSP) on specific dates. |
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8.2. Release calendar access | |||
https://www.officialstatistics.gov.tr/en/ |
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8.3. Release policy - user access | |||
National data release calendar is determined in scope of OSP and announced to public. |
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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. |
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10.1. Dissemination format - News release | |||
Monthly Press Release (https://denizcilik.uab.gov.tr/aylik-yayinlar) |
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10.2. Dissemination format - Publications | |||
Annual Maritime Trade Statistics Book (https://denizcilik.uab.gov.tr/yayinlar) |
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10.3. Dissemination format - online database | |||
Not applicable |
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10.4. Dissemination format - microdata access | |||
Not applicable |
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10.5. Dissemination format - other | |||
Monthly and annual maritime statistics regarding various topics could be reached in MS Excel format via the link https://denizcilikistatistikleri.uab.gov.tr/ |
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10.6. Documentation on methodology | |||
Methodological notes are available in the online Statistics Explained articles on Maritime transport statistics and in the Reference Manual on Maritime Transport Statistics. |
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10.7. Quality management - documentation | |||
Not available |
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11.1. Quality assurance | |||
The system follows as far as possible the European Statistics Code of practice and Quality Assurance Framework of the European Statistical System, more precisely Principle 4: Commitment to Quality: |
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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. Annually, Eurostat provides a data quality report with a summary of the main findings affecting quality as well as showing the solution adopted and the materiality of the existing differences. Mirror checks and checks for the consistency over times are prepared as well. |
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12.1. Relevance - User Needs | |||
The main users of Maritime Transport Statistics are national and local authorities, universities, public and private research institutes, national and trade associations in the transport, environment and energy sectors. |
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12.2. Relevance - User Satisfaction | |||
No studies are conducted to measure user needs and satisfaction. |
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12.3. Completeness | |||
According to the regulation, required statistical data tables are complately sent to Eurostat regularly. |
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13.1. Accuracy - overall | |||
The overall accuracy is considered to be good. The data source is the administrative record. These are the records obtained through Port Single Window System. However, some errors may occur in the statistics due to measurement errors or processing errors. |
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13.2. Sampling error | |||
Not applicable for maritime transport data collection. |
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13.3. Non-sampling error | |||
a) Measurement errors No estimates of measurement errors are available. However, some measurement errors may occur as a result of errors by shipping agents. A large share of so-called “unknown” instead of specific information for type of cargo, type of goods, type of vessel, etc. is also a factor which will reduce the accuracy of the maritime statistics on the more detailed levels. b) Processing errors Between data collection and the beginning of statistical analysis for the production of statistics, data must undergo a certain processing: coding, data entry, data editing, imputation, etc. |
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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). |
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14.2. Punctuality | |||
The deadlines for transmission are usually met. |
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15.1. Comparability - geographical | |||
Maritime transport statistics has been adapted to EU requirements, so maritime data are comparable with the data of the members of the European Statistical System |
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15.2. Comparability - over time | |||
Data are comparable to previous months/years and are temporally consistent. |
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15.3. Coherence - cross domain | |||
The data source of maritime statistics is the data obtained with the Port Single Window System. Consistency research is not conducted with any other data source. |
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15.4. Coherence - internal | |||
In the monthly controls, the previous month's data is checked and the consistency of the data is ensured after the controls. |
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Burden of data entry is not a separate quality component but an important factor in assessing the quality, since it usually has an impact on all other quality components. |
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17.1. Data revision - policy | |||
Maritime statistics are revised at the end of year. |
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17.2. Data revision - practice | |||
Coherence between provisional and final data shows absolute or relative difference between the disseminated value at first release and the value at the release of final data. Revisions are only corrections that are part of the regular procedure of publishing statistical results. |
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18.1. Source data | |||
Administrative data source of Port Management Information System |
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18.2. Frequency of data collection | |||
Frequency of data collection is Monthly and Yearly. |
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18.3. Data collection | |||
Port Single Window System database |
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18.4. Data validation | |||
Data are comparable to previous months/years and are temporally consistent. |
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18.5. Data compilation | |||
Port Single Window System |
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18.6. Adjustment | |||
Not applicable |
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No comments. |
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