Driver Sight Height in Vertical alignment Formulas

Driver Sight Height refers to the vertical distance between the driver’s eye level and the road surface while seated in a vehicle. And is denoted by h₁. Driver Sight Height is usually measured using the Meter for Length. Note that the value of Driver Sight Height is always positive.

Vertical alignment formulas that make use of Driver Sight Height

fxSight Distance given Length of Summit CurveGo

fxLength of Summit Curve given Deviation Angle and Sight DistanceGo

fxDeviation Angle given Length of Summit CurveGo

FAQ

What is the Driver Sight Height?

Driver Sight Height refers to the vertical distance between the driver’s eye level and the road surface while seated in a vehicle. Driver Sight Height is usually measured using the Meter for Length. Note that the value of Driver Sight Height is always positive.

Can the Driver Sight Height be negative?

No, the Driver Sight Height, measured in Length cannot be negative.

What unit is used to measure Driver Sight Height?

Driver Sight Height is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Driver Sight Height can be measured.

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