Research Article
Influences of Waiting Time on Driver Behaviors While Implementing In-Vehicle Traffic Light for Priority-Controlled Unsignalized Intersections
Figure 11
Scores of frustration evaluation in the minor-road experiment, ranging from 1 to 5: 1 = very low, 2 = low, 3 = average, 4 = high, and 5 = very high. and indicate a significant difference at and in statistical analysis, respectively.