Abstract
The euroFOT project is undertaking Field Operational Tests to investigatethe effects of eight safety functions. More than 1,500 drivers of cars and trucks will participate with the focus being not only on the use of the systems under daily traffic conditions but also their impact on traffic safety, efficiency and environment. In order to do this, a methodology had to be developed that balanced rigorous experimental methods with the practicalities of running a field trial. This paper describes how the methodology for undertaking comparative analysis between the functions was developed, drawing on the FESTA guidelines.