Conspicuity Research on the Highway Roadside Objects: A Simulator Study

Figure 6

Relationship between the mean legibility distance and the contour size under 100 km/h, where the relationship between the mean legibility distance and the contour size under 100 km/h was for triangle: 𝑦=122.5𝑥^0.51 and 𝑅²=0.902, for rectangle: 𝑦=120.2𝑥^0.507 and 𝑅²=0.903, and for round: 𝑦=114.2𝑥^0.507 and 𝑅²=0.904.