How much fall in a 2 degree road over 1meter?

For a 2-degree slope, the vertical fall over a distance of 1 meter can be calculated using the tangent of the angle. The fall is approximately equal to the sine of the angle in radians, which for 2 degrees is about 0.0349. Thus, the vertical fall over 1 meter would be approximately 0.0349 meters, or about 3.49 centimeters.