Safety in the Face of Uncertainty

E.W. Haasdijk, W.H. van Willigen, Leon Kester, Ellen Nunen

Research output: Contribution to JournalArticleAcademicpeer-review


This article proposes a safety check extension to Adaptive Cruise Control systems where the critical headway time is estimated in real-time. This critical headway time estimate enables automated reaction to crisis circumstances such as when a preceding vehicle performs an emergency brake. We introduce a method for critical headway approximation that can handle uncertainty in vehicle state, vehicle behaviour and communication in real-time. We validate our method using Monte Carlo simulations where we simulate emergency braking situations to ascertain the safe headway.
Original languageEnglish
Pages (from-to)95-106
Number of pages12
JournalInternational Journal of Intelligent Transportation Systems Research
Issue number2
Early online date9 May 2014
Publication statusPublished - May 2015


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