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Appendix / Examples of Stopping Sight Distance Values
In This Topic
    Examples of Stopping Sight Distance Values
    In This Topic

    Country

    Design or Operating Speed (km/h) Driver Eye Height (m)
    20 30 40 50 60 70 80 90 100 110 120 130 140 Passenger Car Truck Object Height
    Australia

    Stopping Sight Distance (m)

    1.15

    1.80

    0.20

    (Normal Design) 115 140 170 210 250 300
    (Normal Design) 45 65 85 105
    (Restricted Situations) 40 55 70
    Austria 35 50 70 90 120 185 275 380 1.00 0.00 - 0.19
    Britain 70 90 120 215 295 1.05 0.26
    Canada 45 65 85 110 140 170 200 220 240 1.05 0.38
    France 25 35 50 65 85 105 130 160 1.00 0.35
    Germany 65 85 110 140 170 210 255 1.00 2.50 0.00 - 0.45
    Greece 65 85 110 140 170 205 245 1.00 0.15 - 0.60
    South Africa 50 65 80 95 115 135 155 180 210 1.05 1.80
    Sweden 35 70 165 195 1.10 0.20
    Switzerland 35 50 95 120 150 195 230 280 1.00 2.50 0.15

    Source: Transportation Research Board of the International Academies - Transportation Research Circular, Issue E-C003, 1998, p. 32:1-23.

    United States Metric

    Design or Operating Speed (km/h)

    Driver Eye Height

    20 30 40 50 60 70 80 90 100 110 120 130

    Passenger Car

    Object Height

    Stopping Sight Distance Design (m)

    20 35 50 65 85 105 130 160 185 220 250 285

    1.08

    0.6

    United States Imperial

    Design or Operating Speed (mph)

    Driver Eye Height (ft)

    15 20 25 30 35 40 45 50 55 60 65 70 75 80

    Passenger Car

    Object Height

    Stopping Sight Distance Design (ft)

    80 115 155 200 250 305 360 425 495 570 645 730 820 910

    3.5

    2

    Source: American Association of State Highway and Transportation Officials - A Policy on Geometric Design of Highways and Streets 2004. Exhibit 3-1. Stopping Sight Distance, pp. 112, 113.