Knowledge of most significant socio-economic indicators and availability

of forecasting models are essential tools for transport policy makers. In

Europe, lack of a common and consolidated regional database forced

researchers to repeat data mining with consequent differences in their

studies and waste of resources. In addition, there is a need for improved

transport models able to give comprehensive and consistent information on

the European transport system by taking into account the effects of

long-term changes in the regulatory and institutional frameworks. The

SCENARIOS and STREAMS projects have started the development of a

comprehensive transport model at European scale with the elaboration of a

reference scenario and the provision of the related forecasts of key

transport variables. However, this model needs further testing of external

and transport policy scenarios.