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Motion-related comfort in tilting trains: Human responses and motion environments in a train experiment (SJ X2000)
Swedish National Road and Transport Research Institute.
2000 (English)Report (Other academic)
Abstract [sv]

Low frequency vertical accelerations can provoke

motion sickness and nausea in ships and aeroplanes

and probably, combined with horizontal (lateral)

acceleration, also in cars and buses. However, tilting

trains and banking aeroplanes generate roll motions,

which may provoke motion sickness in motion

sickness sensitive humans. Some seventy healthy

volunteers were employed. They were tested in a high

speed tilting train (X2000) with three different tilt

control strategies during three days. Different ratios


tilt compensation were used. The test rides lasted

about three hours. Four times per test ride the


answered a questionnaire concerning comfort and

discomfort. The train motion environment was

monitored and recorded during the test rides. Motion

doses, for prediction of motion sickness, were

calculated from vertical and also from lateral and

roll accelerations for the different parts of the test

track. The conditions with 55% ratio of tilt

compensation instead of the normal 70%, reduced the

discomfort from about 15% to about 8–10%. No reduction

of subjective ride comfort or working ability

was recorded in these conditions with 55 %

compensation. Discomfort correlates fairly well with


dose of roll acceleration but not with vertical or

lateral motion doses. This means that an optimised


control system should reduce the motion dose from roll

acceleration in order to minimise provocation of

motion sickness. On the other hand, too small

compensation ratios will cause discomfort by too large

lateral accelerations.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut., VTI rapport 449A , 2000.
VTI rapport, ISSN 0347-6030
Keyword [en]
English, Sweden, Train, Illness, Moving, Acceleration, Horizontal, Lateral, Vertical, In situ, Comfort
Research subject
Railway: General works, surveys, comprehensive works, Railway: Vehicles
URN: urn:nbn:se:vti:diva-6325OAI: diva2:675200
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2013-12-03

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Förstberg, Johan
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