Conspicuity Research on the Highway Roadside Objects: A Simulator Study

Figure 5

Relationship between the mean legibility distance and the contour size under 80 km/h, where the relationship between the mean legibility distance and the contour size under 80 km/h was for triangle: 𝑦=121.1𝑥^0.515 and 𝑅²=0.892, and for round: 𝑦=110.2𝑥^0.509 and 𝑅²=0.902.