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<strong>AIDE</strong> D4.1.6 Final Activity Report PU Contract N. IST-1-507674-IP (7) Alertness level 08/10/2008 48 VTEC
<strong>AIDE</strong> D4.1.6 Final Activity Report PU Contract N. IST-1-507674-IP An example for one of the behavioural parameters is shown below Function relating average speed to accident risk (from Nilsson) An example of a driver state parameter is parameter nr. 6, driver visual distraction. In order to apply this, one needs to measure driver eye glance durations away from the forward roadway. Eye glances away from the forward roadway that last longer than 2s are critical. In fact, research has shown that the factor by which accident risk increases for those glances (the multiplier for this parameter) happens to be 2.19. Therefore, the change in accident risk associated with this parameter is 2.19 times the change in the measured proportion of glances away from the forward roadway that last longer than 2s. 8.2.2.4.2 Discussion and self assessment: results versus objectives and state-of-the-art As stated before, this WP tackled some long-standing issues in the area. These have been resolved in the sense that we have come up with a procedure that permits us to make the step form empirical data on driver behaviour/driver state to the expected accident risk effects of the system if used on the road. In that sense, the objective of this WP has been met. It is crucial to go from driving behaviour to risk. The algorithm developed within WP2.3 is, however, a first step on a difficult road. The material on which the proposal is based is uneven. That is, some is material from outside that we could have collected in a different way, and some of it is pragmatic extrapolation from mainly theoretical insights. The model needs, therefore, further input (e.g., from FOT, naturalistic driving studies). This first step, however, is of importance since it may trigger a discussion among researchers on how to get from driving behaviour to risk. And this is a very relevant discussion. 08/10/2008 49 VTEC
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