Source
Source Contact person/organisation Contact person/organisationAshley ACKER - Tel: +33 (0)1 73 31 25 10 - ashley.acker@itf-oecd.org or Aurélie KOPACZ - Tel: +(33-1) 73 31 25 22 - aurelie.kopacz@itf-oecd.org
Name of collection/source Name of collection/sourceThe survey used for this exercise is the "ITF Investment in Transport Infrastructure Questionnaire".
Data source(s) used Data source(s) usedThe International Transport Forum (ITF) collects data on an annual basis from its member countries, covering investment, maintenance spending and capital value of transport infrastructure. Data are collected from Transport Ministries, statistical offices and other institutions designated as official data sources.
Data Characteristics Data Characteristics Link to Release calendar Link to Release calendarData are published annually on 31 March.
Reference period Reference periodData series start in 1995 and continue until the current year-2, or the most recent available data.
Unit of measure used Unit of measure usedThe original data is collected in national currency, current values. Data are converted and published in euros, both current and constant (2015 prices).
Variables collected Variables collectedThe variables collected include investment, maintenance spending and capital value of road, rail, inland waterways, maritime ports and airports.
Population & Scope Population & Scope Geographic coverage Geographic coverageITF Member Countries
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. While our survey covers all sources of financing, a number of countries do not include private spending, including Japan and India. Coverage of urban spending also varies between countries. 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 in levels of spending. 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.
Ashley ACKER - Tel: +33 (0)1 73 31 25 10 - ashley.acker@itf-oecd.org or Aurélie KOPACZ - Tel: +(33-1) 73 31 25 22 - aurelie.kopacz@itf-oecd.org
The International Transport Forum (ITF) collects data on an annual basis from its member countries, covering investment, maintenance spending and capital value of 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. Data are converted and published in euros, both current and constant (2015 prices).
The variables collected include investment, maintenance spending and capital value of road, rail, inland waterways, maritime ports and airports.
Data series start in 1995 and continue until the current year-2, or the most recent available data.
Data are published annually on 31 March.
ITF Member Countries
The lack of common definitions and practices to measure transport infrastructure spending hinders comparisons between countries. While our survey covers all sources of financing, a number of countries do not include private spending, including Japan and India. Coverage of urban spending also varies between countries. 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 in levels of spending. 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.