Relationship Between Relative Velocity Detection and Driver Response Times in Vehicle Following Situations 2005-01-0427
Several previous studies report driver response times when responding to a lead vehicle. There have also been other studies that examined and measured the ability of drivers to detect the relative velocity of a lead vehicle. This study attempts to determine how the relative velocity detection threshold and driver response times fit together.
There may be a significant difference between the times at which a lead vehicle is visible versus when it is perceivable as an immediate hazard. This research involved two parts; the first analyzes the raw data reported in previous research. The second part involved measuring responses of subjects using a laptop simulator. The goal of both parts of this research was to compare the subtended angular velocity [SAV] with the response times of drivers to determine if there is a point (threshold) at which response times level off at a fast rate.
As theorized, driver response times remained high until the SAV of the lead vehicle increased to over 0.006 radians per second (in Part I) and to 0.0066 r/s (Part II), after which response times remained relatively fast. An in-depth analysis of driver response to a lead vehicle is discussed.
Citation: Muttart, J., Messerschmidt, W., and Gillen, L., "Relationship Between Relative Velocity Detection and Driver Response Times in Vehicle Following Situations," SAE Technical Paper 2005-01-0427, 2005, https://doi.org/10.4271/2005-01-0427. Download Citation
Author(s):
Jeffrey W. Muttart, William F. Messerschmidt, Larry G. Gillen
Affiliated:
Accident Dynamics Research Center, Robinson & Associates, LLC, GILLENgineering
Pages: 18
Event:
SAE 2005 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Human Factors in Driving, Telematics and Seating Comfort 2005-SP-1934
Related Topics:
Reaction and response times
Vehicle drivers
Parts
Simulators
Research and development
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