Two of the main approaches to improve traffic safety are extensive redesign of the physical roadudinfrastructure and large-scale implementation of Advanced Driver Assistance Systems (ADAS).udThese strategies are to a large extent substitutes, but also partly complementary. This paper determinesudstrategic road traffic safety scenarios, reviews some of the evaluation methods most commonlyudused in transportation research, and presents Grey Relational Analysis (GRA). GRA is audnormalisation based method. It provides a simple and transparent calculation procedure from whichuda clear-cut ranking order of strategies derives. The application of GRA to the evaluation problem isudaddressed, and some preliminary results are reported, especially sensitivity analysis is discussed.
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