| Description |
xi, 129 leaves : illustrations ; 28 cm |
| Summary |
"This research work sought to validate the driving simulator at Missouri University of Science and Technology and to evaluate the vehicle mounted attenuator (VMA) markings for various times of day. For comprehensive validation of the driving simulator, a framework is proposed which is demonstrated using a fixed-base driving simulator. Objective and subjective evaluations were conducted, and validation of the driving simulator was performed at specific locations and along the highway. Field data were collected for a partial lane closure using a global positioning system (GPS) along the work zone and supplemented with video recordings of traffic data at specific locations in the work zone. The work zone scenario was reconstructed in a driving simulator and analyzed with 46 participants. The results of objective evaluation established the absolute and relative validity of the driving simulator. The results of subjective evaluation of the simulator indicated realistic experience by the participants. Evaluation of four VMAs used by departments of transportation (DOTs) in work zones determined the effectiveness of specific striping patterns and color combinations. The survey of DOTs indicate that the yellow and black inverted 'V' pattern is the most widely used since it is the one most often provided by VMA suppliers. A driving simulator study was then conducted to evaluate each VMA for use during the day, at dusk, and at night. By driving through virtual highway work zones, 120 participants of various ages evaluated the VMA markings. Additionally, the drivers completed a detailed subjective survey. The results of the objective and subjective evaluations indicate that, overall, the red and white checkerboard pattern is most effective"--Abstract, leaf iv. |
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