Abstract
The mobile warning signs is the concept of placement of traffic signs board. The application of mobile warning signs is tested using two standards that consist of legibility distance and glance legibility. The procedure is begun by attaching a camera at the car observer to record the tested car installed with the mobile traffic warning sign. The result of observation will produce a documentation in a video file format. The video then comes into an editing process to trim the parts that point to the legibility distance and glance legibility. The trims of video are given to the respondents. This research uses a mobile phone equipped with Google Maps, iOnRoad Professional, Lollipop Screen Recording and VSDC Video Editor. The result confirms that the respondents’ standard of legibility is fulfilled by the requirement of mobile traffic warning signs which is designed (46x69) cm in board size, 5 cm in letter size and clearview font. This distance affirms the maximum legibility distance of 50 meters within 7 second and minimum legibility distance of 20 meters within any range of time interval. The glance legibility eventually will not affect significantly when the following car moves as the warning sign attached-car does.
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