In this paper, we evaluate the effectiveness of ITS safety merging support and collision prevention support services from the viewpoint of changes in driving behavior. By analyzing drivers' eye movement and pedal operation behavior measured by an eye mark recorder and wearable sensors respectively, we investigate the difference among driving behavior with and without providing ITS safety services. Through a demonstration experiment performed on Hanshin Expressway in 2009, we have found out that (1) ITS safety merging support service could encourage drivers to pay more careful attentions towards oncoming merging vehicles to fast lane and (2) ITS collision prevention support service could encourage drivers to keep safe time headway and to reduce distraction.
