Railway transport - Length of railway network| Contact |
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| Contact organisation | National Statistical Institute |
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| Contact organisation unit | "Short-term Business Statistics and Transport Statistics" Department |
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| Contact name | Marin Toshev |
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| Contact person function | State expert |
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| Contact mail address | 2, P.Volov Str. Sofia 1038, Bulgaria |
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| Contact email address | [email protected] |
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| Contact phone number | + 359 9857 190 |
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| Contact fax number | |
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| Metadata update |
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| Metadata last certified | 04 September 2023 |
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| Metadata last posted | 04 September 2023 |
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| Metadata last update | 04 September 2023 |
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| Statistical presentation |
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| Data description | The railway network includes all rail lines in the country, which are used by the railway vehicles for execution of transport of goods and passengers between stations or places, marked as single points for arrival or departure. The lines of the urban railway transport (tram and metro) are excluded. |
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| Classification system | Classification of Territorial Units for Statistical Purposes in Bulgaria - NUTS. |
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| Sector coverage | Covers the length of the railway lines by type and region. |
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| Statistical concepts and definitions | According to Glossary for transport statistics ? Geneva which provides data comparability at European level. |
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| Statistical unit | Data source is NC "Railway infrastructure" |
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| Statistical population | All railway lines, incl. platform tracks on national territory. |
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| Reference area | National territory by regions |
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| Time coverage | Since 2000 |
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| Base period | Not applicable. |
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| Unit of measure |
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Kilometres |
| Reference period |
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Year |
| Institutional mandate |
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| Legal acts and other agreements | Regulation (EC) No 176/2008 of the European Parliament and of the Council of 20 February 2008. |
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| Data sharing | Common questionnaire of Eurostat, UN and ITF. |
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| Confidentiality |
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| Confidentiality - policy | Data on railway infrastructure total for the country and by regions are not individual data and for that they are not confidential. |
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| Confidentiality - data treatment | Data on railway infrastructure total for the country and by regions are not individual data and for that they are not confidential. |
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| Release policy |
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| Release calendar | Data are published according to the deadlines set in the National statistical program and the Release calendar. |
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| Release calendar access | The calendar is available on the NSI website: http://www.nsi.bg/en/node/480 |
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| User access | Data are published on the internet site of NSI and can be accessed from all users of statistical information. |
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| Frequency of dissemination |
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Annually |
| Accessibility and clarity |
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| News release | Not applicable. |
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| Publications | · Statistical Yearbook; · Statistical Reference Book; · ?Bulgaria? (brochure). |
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| On-line database | Data on length of railway network are available to all users of the NSI website under the heading Domain statistics - Transport and Communications - Other annual data -Transport - Railway transport: http://www.nsi.bg/en/node/7191 |
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| Micro-data access | Not applicable. |
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| Other | Not applicable. |
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| Documentation on methodology | Reference Manual on Railway Transport Statistics issued by Eurostat. |
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| Quality documentation | Not applicable. |
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| Quality management |
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| Quality assurance | Logical control and validation of the data. |
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| Quality assessment | Not applicable. |
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| Relevance |
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| User needs | Different organizations and specialized in the sector enterprises. |
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| User satisfaction | Not applicable. |
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| Completeness | Full coverage. |
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| Accuracy and reliability |
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| Overall accuracy | Not applicable. |
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| Sampling error | Not applicable. |
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| Non-sampling error | Not applicable. |
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| Timeliness and punctuality |
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| Timeliness | According to the set deadlines. |
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| Punctuality | According to the set deadlines. |
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| Coherence and comparability |
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| Comparability - geographical | Not applicable. |
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| Comparability - over time | Not applicable. |
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| Coherence - cross domain | Not applicable. |
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| Coherence - internal | Not applicable. |
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| Cost and burden |
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Cost and Burden for the survey are defined according the National Statistical Program for each reference year. |
| Data revision |
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| Data revision - policy | Data revision is made when it is necessary. |
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| Data revision - practice | According to rules set by Eurostat. |
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| Statistical processing |
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| Source data | Source of data is NC "Railway infrastructure" |
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| Frequency of data collection | Annual |
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| Data collection | The survey is exhaustive. |
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| Data validation | By necessity validation checks of transmitted data series are made. |
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| Data compilation | Aggregated data are received from NC "Railway infrastructure". |
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| Adjustment | Not applicable. |
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| Comment |
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- |
