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Source
Source Contact person/organisation Contact person/organisation Ashley ACKER - Tel: +33 (0)1 45 24 47 71 - ashley.acker@itf-oecd.org
Data source(s) used Data source(s) usedThe International Transport Forum (ITF) collects on an annual basis from all its member countries data on investment and maintenance spending on transport infrastructure. Data are collected from Transport Ministries, statistical offices and other institutions designated as official data sources.
Name of collection/source Name of collection/source The survey used for this exercise is the "ITF Investment in Transport Infrastructure questionnaire".
Data Characteristics Data Characteristics Unit of measure used Unit of measure usedThe original data is collected in national currency, current values. For analytical purposes and data comparisons, data are converted and published in million euros, both current and constant.
Variables collected Variables collectedThe variables collected are investment and maintenance expenditures and capital value for road, rail, inland waterways, maritime ports and airports.
Reference period Reference periodThe data series start in 1995 and continue until the most recent available data, which normally refers to the current year-2.
Link to Release calendar Link to Release calendarData are collected in January and published in May of the same year for the period until the year-2.
Population & Scope Population & Scope Geographic coverage Geographic coverage The geographical area is the ITF member countries, but not all countries provide data.
Concepts & Classifications Concepts & Classifications Key statistical concept Key statistical conceptThe lack of common definitions and practices to measure transport infrastructure spending hinders comparisons between countries. Data for road and rail infrastructure are the most comprehensive while data on sea port and airport spending are less detailed in coverage and definition. While our survey covers all sources of financing, a number of countries exclude private spending, including Japan and India. Approximately 65% of countries report data on urban spending. Indicators such as the share of GDP needed for investment in transport infrastructure, depend on a number of factors, such as the quality and age of existing infrastructure, maturity of the transport system, geography of the country and transport-intensity of its productive sector. Caution is therefore required when comparing investment data between countries. However, data for individual countries and country groups are consistent over time and useful for identifying underlying trends and changes in levels of spending, especially for inland transport infrastructure. These issues of definitions and methods are addressed in a companion report "Understanding the Value of Transport Infrastructure – Guidelines for macro-level measurement of spending and assets" (ITF/OECD2013), which was written with the goal of improving the quality and comparability of related statistics at the international level.
Transformations TransformationsIn order to draw up a summary of aggregate trends for selected countries, data has been calculated in euros at both constant (2005) and current prices.
Ashley ACKER - Tel: +33 (0)1 45 24 47 71 - ashley.acker@itf-oecd.org
The International Transport Forum (ITF) collects on an annual basis from all its member countries data on investment and maintenance spending on transport infrastructure. Data are collected from Transport Ministries, statistical offices and other institutions designated as official data sources.
The survey used for this exercise is the "ITF Investment in Transport Infrastructure questionnaire".
The original data is collected in national currency, current values. For analytical purposes and data comparisons, data are converted and published in million euros, both current and constant.
The variables collected are investment and maintenance expenditures and capital value for road, rail, inland waterways, maritime ports and airports.
The data series start in 1995 and continue until the most recent available data, which normally refers to the current year-2.
Data are collected in January and published in May of the same year for the period until the year-2.
The geographical area is the ITF member countries, but not all countries provide data.
The lack of common definitions and practices to measure transport infrastructure spending hinders comparisons between countries. Data for road and rail infrastructure are the most comprehensive while data on sea port and airport spending are less detailed in coverage and definition. While our survey covers all sources of financing, a number of countries exclude private spending, including Japan and India. Approximately 65% of countries report data on urban spending. Indicators such as the share of GDP needed for investment in transport infrastructure, depend on a number of factors, such as the quality and age of existing infrastructure, maturity of the transport system, geography of the country and transport-intensity of its productive sector. Caution is therefore required when comparing investment data between countries. However, data for individual countries and country groups are consistent over time and useful for identifying underlying trends and changes in levels of spending, especially for inland transport infrastructure. These issues of definitions and methods are addressed in a companion report "Understanding the Value of Transport Infrastructure – Guidelines for macro-level measurement of spending and assets" (ITF/OECD2013), which was written with the goal of improving the quality and comparability of related statistics at the international level.
In order to draw up a summary of aggregate trends for selected countries, data has been calculated in euros at both constant (2005) and current prices.