Principles and Guidance for Presenting Active Traffic Management Information to Drivers (2021) / Chapter Skim
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Pages 101-106
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92 • Survey data o Comparison of DMS, overhead signs, and pictograms o Comparison of presentation styles o Preferred ATM medium Road layout The simulated road layout was designed to require drivers to change their speed according to dynamic speed limit information. For each experimental condition, a total of four overhead ATM signs were presented (i.e., four gantries within one block)
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93 Figure 80. Sample image of dynamic speed limit information presented on gantries for Experiment 2.
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94 A linear mixed-effect model was applied to examine differences across the experimental conditions. The drivers were set to a random effect and the experimental conditions were set to a fixed effect.
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95 Figure 82. Speed exceedance.
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96 Table 22. Summary glance statistics for Experiment 2.
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97 o In addition, there was no significant difference between the two AV modes (p < .9)
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