![Horizontal Curve Design 1 Horizontal Curve Design](https://excel.civilmdc.com/wp-content/uploads/2021/10/Horizontal-Curve-Design.png)
A horizontal curve provides a transition between two tangent strips of roadway, allowing a vehicle to negotiate a turn at a gradual rate rather than a sharp cut. The design of the curve is dependent on the intended design speed for the roadway, as well as other factors including drainage and friction