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Driver- and situation-specific effects on assistance systems for speed and distance control

: Nirschl, G.; Eck, R.

Human Factors and Ergonomics Society -HFES-, Santa Monica/Calif.:
People & technology in harmony. Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting. Vol.2 : Nashville, Tennessee, October 24 - 28, 1994
Santa Monica/Calif.: HFES, 1994
pp.857-861 : Abb.,Lit.
Human Factors and Ergonomics Society (Annual Meeting) <38, 19994, Nashville/Tenn.>
Conference Paper
Fraunhofer IITB ( IOSB) ()
Abstandshaltung; distance keeping; driver assistance system; Fahrerassistenzsystem; prometheus AICC; Situationsanalyse

AICC (Autonomous Intelligent Cruise Control) systems, as investigated in the European PROMETHEUS and DRIVE projects, should support the driver in longitudinal vehicle control. The presented study analyzed driver- and situation-specific effects, which have to be considered when developing or evaluating AICCs. The investigations focussed on assistance systems, which inform or warn a driver in case of inadequate speed or distance. Messages to the driver are transferred either acoustically or visually or via active control devices, such as an "active gas-pedal". Driving experiments were performed, whereby subjects' distance keeping behavior was monitored. As a first step before experimental evaluation, relevant traffic situations for AICC application were identified and classified. The results of the subsequent situation analysis reveal driver- and situation-specific characteristics. Typical effects are found in frequency and duration of various AICC situations, in distance distribution wh en following, and in minimum distance when approaching a preceding vehicle. From situation analysis, first consequences were derived showing off capabilities and limitations of AICC systems on principle and of "active gas-pedal" in particular.