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Table 1 Utilized and control design values in the SSD adequacy investigation (Vd = 130 km/h)

From: Three-dimensional stopping sight distance control on passing lanes of divided highways

 

Utilized value

Control value

R (m) (e = 6 %)

L (m)

K (m)

s (%)

1000

111

200

4

950

72

124

4

  1. Legend: R horizontal radius, L spiral length (desirable, in AASHTO), K rate of vertical curve, s grade, e superelevation rate