Time-related measures for modelling risk in driver behaviour
conference paper
The results of several studies point to the direct use of time-related measures such as Time-To- Collision (TTC) and Time-to-Line-Crossing (TLC) as a cue for decision-making in longitudinal and lateral control of the vehicle. This paper deals with the issue of distinguishing normal from critical interactions between road users based on the minimum TTC measure as derived from several traffic conflict observation studies in the past and additional experimental research, the latter revealing that both the decision to start braking and the control of braking may well be based on TTC information directly available from the optic flow field. Studies on driver behaviour in fog enable a precise definition of critical situations relevant for a proper criterion setting for Collision- Avoidance Systems (CAS). A similar approach for a time-based description of driver behaviour when negotiating intersections in terms of Time-To-Intersection (TTI) and Time-To-Stopline (TTS) together with the TTC measure provides suitable input for modelling driver behaviour as a basis for Intersection Collision Avoidance Warning Systems.
Bij modelleren van bestuurdersgedrag is het van belang kritiek van normale gebeurtenissen te onderscheiden. Tijdmaten als TTC en TLC geven hiervoor de criteria.
TNO Identifier
15881
Source title
Proceedings of the International workshop on modelling driver behaviour in automotive environments ISPRA, Italy, 25-27 May, 2005
Pages
113 - 122
Files
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