Conspicuity Research on the Highway Roadside Objects: A Simulator Study

Table 2

The mean legibility distance under 60 km/h.

Contour	Sizes of the roadside objects (m^2)
	1	16	49	100	169
Triangle	136.58	529.10	846.98	1225.88	1761.12
Rectangle	123.93	514.48	762.77	1129.70	1606.03
Round	103.63	493.01	647.66	1128.78	1559.14