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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/11705
Title: Influence of mono-axis random vibration on reading activity
Authors: Bhiwapurkar M.K.
Saran, V. Huzur
Harsha, Suraj Prakash
Goel V.K.
Berg M.
Published in: Industrial Health
Abstract: Recent studies on train passengers' activities found that many passengers were engaged in some form of work, e.g., reading and writing, while traveling by train. A majority of the passengers reported that their activities were disturbed by vibrations or motions during traveling. A laboratory study was therefore set up to study how low-frequency random vibrations influence the difficulty to read. The study involved 18 healthy male subjects of 23 to 32 yr of age group. Random vibrations were applied in the frequency range (1-10 Hz) at 0.5, 1.0 and 1.5 m/s2 rms amplitude along three directions (longitudinal, lateral and vertical). The effect of vibration on reading activity was investigated by giving a word chain in two different font types (Times New Roman and Arial) and three different sizes (10, 12 and 14 points) of font for each type. Subjects performed reading tasks under two sitting positions (with backrest support and leaning over a table). The judgments of perceived difficulty to read were rated using 7-point discomfort judging scale. The result shows that reading difficulty increases with increasing vibration magnitudes and found to be maximum in longitudinal direction, but with leaning over a table position. In comparison with Times New Roman type and sizes of font, subjects perceived less difficulty with Arial type for all font sizes under all vibration magnitude.
Citation: Industrial Health (2010), 48(5): 675-681
URI: https://doi.org/10.2486/indhealth.MSWBVI-09
http://repository.iitr.ac.in/handle/123456789/11705
Issue Date: 2010
Keywords: Font type
Random vibration
Reading activity
Reading difficulty
Word chain
ISSN: 198366
Author Scopus IDs: 36633921800
6507475582
6603548398
56269524700
7202002535
Author Affiliations: Bhiwapurkar, M.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Roorkee-247667 (Uttarakhand), India
Saran, V.H., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Roorkee-247667 (Uttarakhand), India
Harsha, S.P., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Roorkee-247667 (Uttarakhand), India
Goel, V.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Roorkee-247667 (Uttarakhand), India
Berg, M., Department of Vehicle Engineering, Royal Institute of Technology, Stockholm, Sweden
Corresponding Author: Goel, V. K.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Roorkee-247667 (Uttarakhand), India; email: goelvfme@iitr.ernet.in
Appears in Collections:Journal Publications [ME]

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