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Toll tellers working at toll plaza have potential of exposure to high noise from the vehicles especially for the peak level of sound emitted by the heavy vehicles. However, occupational exposures in this workplace have not been adequately characterized and identified. Occupational noise exposure among toll tellers at toll plaza was assessed using Sound Level Meter, Noise Dosimeter and through questionnaire survey. These data were combined to estimate the work shift exposure level and health impacts to the toll tellers by using statistical analysis. Noise Dosimeter microphone was located at the hearing zone of the toll teller which working inside the toll booth and full-period measurements were collected for each work shift. The measurements were taken at 20 toll booths from 6.00am to 2.00pm for 5 days. 71 respondents participated in the survey to identify the symptoms of noise induced hearing loss and other health related problems among toll tellers. Results of this study indicated that occupational noise exposure among toll tellers for Mean Continuous Equivalent Level, L eq was 79.2 ± 1.4 dB(A), Mean Maximum Level, L max was 107.8 ± 3.6 dB(A) and Mean Peak Level, L peak was 136.6 ± 9.9 dB. The Peak Level reported statistically significantly at 140 dB, the level of TLV recommended by ACGIH. The research findings indicated that the primary risk exposure to toll tellers comes from noise that emitted from heavy vehicles. Most of the toll tellers show symptoms of noise induced hearing loss and annoyed by the sources of noise at the toll plaza.

Kansei Engineering method is the process of linking the customers' emotional responses, also known as affective values, which includes the physical touch and psychological feelings, to the properties of a product or service. This method is significant in being the first to introduce a systematic investigation to translate customers' feelings and demands into design elements [1], [2], [3]. The Kansei approach is essential for automotive design because nowadays production that based on satisfying consumer's affective needs is the driving factor for increasing sales and profit margins [4]. If customers are having high acceptance on the product, the products will likely champion the market.