The European Cyclists' Federation's Resource Library is a database that hosts a number of documents and reports related to cycling.

The International Road Traffic and Accident Database (IRTAD) gathers data on traffic and road accidents from 28 out of the 30 OECD Member countries. The main part of the database, with around 500 data items, includes aggregated data on injury accidents, road fatalities, vehicle population, network length, vehicle kilometrage from 28 countries (for 1965 and for every year since 1970).

The United Nations Economic Commission for Europe's (UNECE) statistical database for transport infrastructure offers the possibility to view the length of road, railway and waterway infrastructure, categorised by type of infrastructure, nature of transport, and density from all European countries.

The International Transport Forum collects quarterly data on the short-term evolution of the transport sector in its 51 member countries to foresee trend shifts in the sector as a result of economic down or upturn.

The data covers three modes of inland transport (rail, road and inland waterways) together with some economic indicators. Series are available from 1995 and are published with a three-month lag.

AirBase is the European air quality database maintained by the EEA through its European topic centre on air pollution and climate change mitigation. It contains air quality monitoring data and information submitted by participating countries throughout Europe. 

The air quality database consists of a multi-annual time series of air quality measurement data and statistics for a number of air pollutants. It also contains meta-information on those monitoring networks involved, their stations and their measurements.

The online tool, launched by the ITF and OECD in 2017, allows users to freely select between 19 transport-related indicators for more than 50 countries to create their own transport data. This allows users to:

• Compare trends for up to four countries simultaneously.
• Create country rankings.
• Show country information on a world map

The topics cover CO2 emissions, road safety, infrastructure investment, modal shares and the transport network. 

The UK's Department of Transport provides a large amount of statistics for a wide field in transport.

Within the scope of national statistics, it provides an accurate, comprehensive and meaningful picture of transport patronage in the UK.

In many cases, statistical publications during the year provide the first release of data, as well as annual, quarterly and monthly reports.

The Bus Rapid Transport (BRT) Databank gives the sustainable transport community access to reliable and current data about the BRT and bus corridors in operation.

It is possible to choose between browsing for indicators or locations of BRT systems. The platform provides a convenient repository of data from a variety of sources including researchers, transit agencies, municipalities and non-governmental organisations.

Under the topics of urban development and infrastructure, the World Bank provides a large amount of transport-related data.

A special feature allows comparison between different countries. Indicators include number of motor cars, PM emissions, road-sector energy consumption and vehicle numbers per road km.

The National Air Pollution Monitoring Network (NABEL) measures air pollution at 16 locations in Switzerland. The stations are distributed throughout the country and monitor pollution at typical locations (e.g. city-centre streets, residential areas, rural stations).

It provides hourly, daily, monthly and annual data about common air pollutants, and is available in English, French, German and Italian.