An integrated system of forward collision warning and adaptive cruise control functions was projected to prevent about 10 percent of all rear-end crashes, and 10 to 20 percent of severe near-crashes.
An independent evaluation of the ACAS was conducted based on data collected from a field operational test (FOT) and from an independent system characterization test. The goals of the independent evaluation were to: characterize ACAS performance and capability, achieve a detailed understanding of ACAS safety benefits, and determine driver acceptance of ACAS. Data were collected from the ACAS FOT that employed 10 vehicles using a total of 66 drivers that included three age groups (younger, middle-age, and older) with equal numbers of male and female drivers.
Based on data collected from the FOT involving 10 vehicles and 66 drivers, an integrated system of FCW and ACC functions was projected to prevent about 10 percent of all rear-end crashes, and 10 to 20 percent of severe near-crashes (minimum time-to-collision of less than 3 seconds with a peak deceleration level by the host vehicle of over 0.3g). No unintended negative consequences were observed by examining travel speed, time headway, distraction, and eyes-off-the-road. Long-term positive or negative safety effects were not evaluated due to the nature of the FOT.
Author: Najm, Wassim G., et al.
Published By: Prepared by Volpe for the U.S. Department of Transportation
Source Date: April 2006
EDL Number: 14303URL: http://ntl.bts.gov/lib/jpodocs/repts_te/14303.htm
Average User Rating
Typical Deployment Locations
intelligent cruise control, ICC, ACC, Intelligent Speed Adaptation, ISA