Transport infrastructure investment and maintenance spending
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Ashley ACKER - Tel: +33 (0)1 73 31 25 10 - ashley.acker@itf-oecd.org

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The survey used for this exercise is the "ITF Investment in Transport Infrastructure Questionnaire".

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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.

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Data are published annually on 31 March.

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Data series start in 1995 and continue until the current year-2, or the most recent available data.

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The original data is collected in national currency, current values. Data are converted and published in euros, both current and constant (2015 prices).

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The variables collected include investment, maintenance spending and capital value of road, rail, inland waterways, maritime ports and airports.

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ITF Member Countries

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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.

Transport infrastructure investment and maintenance spendingContact person/organisation

Ashley ACKER - Tel: +33 (0)1 73 31 25 10 - ashley.acker@itf-oecd.org

Data source(s) used

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.

Name of collection/source

The survey used for this exercise is the "ITF Investment in Transport Infrastructure Questionnaire".

Unit of measure used

The original data is collected in national currency, current values. Data are converted and published in euros, both current and constant (2015 prices).

Variables collected

The variables collected include investment, maintenance spending and capital value of road, rail, inland waterways, maritime ports and airports.

Reference period

Data series start in 1995 and continue until the current year-2, or the most recent available data.

Link to Release calendar

Data are published annually on 31 March.

Geographic coverage

ITF Member Countries

Key statistical concept

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.