Research of Karlsruhe Institute of Technology (KIT) supports the European Commission in transport planning: With the help of the new HIGH-TOOL model, long-term impacts of transport policy measures on economy, society, and environment can be assessed. HIGH-TOOL is an open-source model that embraces modules for demography, economy and resources, vehicle stock, passenger demand, freight demand, as well as environment and safety. Eight partners from five countries were involved in the EU project coordinated by KIT, which has now been completed successfully.