Transport Knowledge Base (TraKB)

The SLOCAT Transport and Climate Change Global Status Report – 2nd edition aims to capture data and trends from the period between 2018 and early 2021. Throughout the report, the most recent publicly accessible data were used. These data are also provided in the Transport and Knowledge Base (TraKB), an open-source database that has been curated by SLOCAT over the years and that has been updated in conjunction with this second edition of the report.

The Transport Knowledge Base (TraKB) by SLOCAT is a large database on information about sustainable transport. It unites all existing datasets collected by SLOCAT (e.g. Biennial (Update) Reports, National Communications, Voluntary National Reviews, climate-finance instrument projects) as well as valuable data from various external sources (e.g. transport activity, emissions, air quality, road safety). All major mobility modes (e.g. aviation, high-speed rail, bus rapid transit, urban rail, cars, cycling, walking) are cover in the Excel-based database. TraKB gives users a one-click access to all major exclusive SLOCAT datasets.

All information contained in the TraKB, unless otherwise noted, is licensed under Creative Commons — Attribution 4.0 International (CC BY 4.0). Under this license, users are allowed to share (i.e. copy and redistribute data in any form) and adapt (i.e. build upon the data for any purpose) as long as appropriate credit is provided.

The TraKB is an Excel-based data platform which can be downloaded here. The current version as of June 2021 is  Version 0.3.


Development of TraKB by SLOCAT

In May 2017, the SLOCAT team started the work on gathering data on transport and development of a database to integrate varied information. The result of this activity was the Transport Knowledge Base (TraKB) Version 0.1.  Future updates of the TraKB are planned to include more data and new functions. If you would like to contribute transport data or have any feedback on the TraKB, please contact Nikola Medimorec (