Investigating the effect of speed humps’ dimension parameter to the comfort of sleeper coaches’ passengers using full car model

Abstract

Speed humps are one of active safe methodsused to reduce the speed
of vehicles, but they also adversely affectdrivers and passengers. In
order to determine speed humps’ undesirable effects on comfort, we
built a full car model to describe vibration of sleeping coaches. The
full car model reflects roll and pitch motions. The full car model is
used to analyzethe effects of different type of speed humps to the
comfort of passengesr. The Model is solved by Matlab software to
determine acceleration value (RMS) reflecting the comfort of
passenger when travelling by sleep coach.