International audienceIntervals of backward glancing during expressway driving were measured and statistical character was analysed. The main aim of the analysis was to clarify variety of backward glancing manner while no intentional manoeuvring such as lane changing was performed. Eleven subjects drove totally 113 trips and 11,105 backward glances were extracted and analysed. The distribution of the intervals of backward glances was parameterized using mixture of two lognormal distributions. There were large differences in the interval distribution among subjects and even within a subject. Statistical tests showed some factors such as distance to preceding/following car affect to the distribution, but the manner of the effect also varies among subjects
