United States Department of Transportation
i
United States-Federal Republic of Germany cooperative study of advanced ground vehicle ride quality
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1979-11-01
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[PDF-775.87 KB]
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Edition:Project memorandum; Revised
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NTL Classification:NTL-SAFETY AND SECURITY-SAFETY AND SECURITY;NTL-SAFETY AND SECURITY-Human Factors;
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Abstract:In the first phase of this study, the relative comfort
assoiciated with various speed-guideway configurations for a proposed
magnetically levitated vehicle (Figure 1) and for a currently
operating Bundesbahn rail-coach were determined. The rideenvironment
of the two vehicle types was simulated using the NASA
Langley Research Center's (NASA/LRC) Passenger Ride Quality
Apparatus (PRQA). The simulation was based on vehicle and guideway
dynamics models which depict the motion environments in terms
of "bounce" or motions along the Z-axis, "sway" or motions along
the X-axis, and "roll" or rotational motions about the Y-axis.
Paid subjects, chosen to achieve a balance between sex & age, were
exposed to brief samples of the motion environments accompanied
by appropriate levels of acoustic noise. The subjects were asked
to rate the comfort level of each motion sample and, in cases
where the ride was perceived to be uncomfortable, were asked to
identify the motions which were most disturbing.
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