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http://dx.doi.org/10.12815/kits.2016.15.5.083

Evaluation of the Feasibility of a Voice Alarm in a Highway Work Zone  

Moon, Jae-Pil (Korea Institute of Civil Engineering and Building Technology)
Park, Hyun-jin (Hanyang University)
Oh, Cheol (Hanyang University)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.15, no.5, 2016 , pp. 83-94 More about this Journal
Abstract
Providing a voice alarm to drivers approaching a work zone could be an effective alternative to mitigate the potential safety problems of the work zone. This study conceived a voice alarm with a direction sound speaker and a field test was conducted that evaluated the feasibility of the voice alarm at a highway work zone. During the field study, we carried out on-site driver surveys to obtain drivers' perception and preference, collected approaching speeds, and measured sound level during the off-peak 2-hour for two days, respectively. The results showed that while the voice alarm has the potential to be an effective tool in improving safety, the alternative appeared to have the negative effect of noise. Further refinement to a voice alarm with a directional speaker is required to improve feasibility, and the results are expected to be utilized as basic data useful for the refinement.
Keywords
Work Zone; Voice Alarm; Directional Sound Speaker; Regression analysis; Kriging analysis;
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