Of deviation. Together with the radius of curvature it is a specific geometric characteristic of the tournout. The lines suitable to be traveled at high speed have curves with a wide bending radius and therefore “low tangent”, while the low-speed passable lines have limited bending radii and therefore “high tangent”. Typical values are: 0.015, 0.022, 0.028, 0.034, 0.040, 0.055, 0.074, 0.092, 0.094, 0.10 and 0.12
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