Beam Angle in Highway Geometric Design Formulas

Beam angle is the angle between the two directions for which the intensity is 50% of the maximum intensity as measured in a plane through the nominal beam centerline. And is denoted by α. Beam Angle is usually measured using the Degree for Angle. Note that the value of Beam Angle is always positive.

Highway Geometric Design formulas that make use of Beam Angle

fxLength of Valley Curve for Head Light Sight Distance when Length is more than SSDGo

fxLength of Valley Curve for Head Light Sight Distance when Length is less than SSDGo

FAQ

What is the Beam Angle?

Beam angle is the angle between the two directions for which the intensity is 50% of the maximum intensity as measured in a plane through the nominal beam centerline. Beam Angle is usually measured using the Degree for Angle. Note that the value of Beam Angle is always positive.

Can the Beam Angle be negative?

No, the Beam Angle, measured in Angle cannot be negative.

What unit is used to measure Beam Angle?

Beam Angle is usually measured using the Degree[°] for Angle. Radian[°], Minute[°], Second[°] are the few other units in which Beam Angle can be measured.

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