Year: 2011
Type: conference-paper
Abstract: This paper provides the results of an analysis \nconducted to assess the safety impact of an integrated\nvehicle-based crash warning system based on\nnaturalistic driving data collected from a field\noperational test. The system incorporates four\nfunctions that warn the driver of an imminent rear end\ncrash, excessive speed to an upcoming curve,\nlane-change crash, or unintentional lane departure.\nThe safety impact is assessed in terms of observed\nchanges in driving behavior, exposure to driving\nconflicts, near-crash experience, and projected\npotential reductions in the number of annual target\ncrashes. Unintended consequences are examined by\nanalyzing driver engagement in secondary tasks and\neyes-off-the-forward-scene behavior. A total of 108\nsubjects, split by gender and three age groups,\nparticipated in the field test by driving in an\nunrestricted manner for a period of six weeks each.\nIn the first two weeks, designated as the baseline\nperiod, the subjects performed their naturalistic\ndriving with the system turned off while the data\nacquisition system collected their performance data.\nIn the last four weeks, designated as the treatment\nperiod, the system was turned on and provided the\nsubjects with visual, auditory, and haptic crash\nwarning signals. This paper discusses the safety impact\nof the system for individual subject groups based on\ngender and age. The integrated system has the\npotential to reduce the number of rear-end, opposite direction,\nlane-change, and road-departure crashes\ninvolving at least one passenger car. Moreover, the\nsystem did not influence drivers to engage in more\nsecondary tasks.\n
Source: ROSA P
Language: English
Subfield: Human Factors and Ergonomics
Field: Social Sciences
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W1165698045