Investigating the impact of a Lane Departure Warning system in real driving conditions - A subjective Field Operational Test

This paper presents the Italian Field Operation Test (FOT) to be performed within the European project euroFOT aimed at assessing a wide variety of Intelligent Transport Systems (ITS) across Europe. The Italian FOT in euroFOT is aimed at investigating the Lane Departure Warning system (LDW) equipped on Lancia Delta vehicles, deploying a sample of up to 300 vehicles and using a wide and differentiated set of self-reported questionnaires. Based on subjective responses, objective measures will be constructed using psychometric methods and models. Results will assess subjective user-related aspects and will be referred to LDW impact on driving safety, user acceptance of the system, usefulness and driving behaviour. Because of the psychometric methodology adopted, results are expected to accurately depict the actual impact of this function.