What does camber in drainage facilities help to adjust?

Camber in drainage facilities refers to the slight upward curvature or slope of the channel profile, primarily designed to ensure proper water flow. By adjusting the profile of the drainage facility, camber enhances the efficiency of water movement within the system, minimizing the risk of sediment buildup and ensuring that water can easily travel to its intended outfall. This curvature allows for effective gravitational flow, reducing potential pooling and promoting proper drainage.

In contrast, the other options do not directly relate to the function of camber. While the width of the channel, length of the embankment, and discharge rate are all important aspects of drainage design, they are not influenced by the camber itself. Instead, they are determined by other design parameters and engineering decisions aimed at effectively managing stormwater runoff.