The
data acquisitions were halted when the subway was stopped
in the stations. Then, the acceleration levels were weighted
according to the ISO 2631-1 standard2). In addition to the
vibration measurements, each operator was asked if he had experienced discomfort related to vibration during the previous
interstation (i.e. the track section between two adjacent stations).
Pictures of the old seat (with no suspension), and of
the operator cab with the cab dimensions are shown in Fig. 6.
Two additional set of tests have been realized on the subway
orange line (between the stations Montmorency and Côte-
Vertu): the first one with 13 operators using the new suspension
seat, and the second one with 3 operators using the
current old seat. For these additional tests, each operator performed
a one-way displacement of about 47 min.