On a divided highway, the median width is measured between which points?

The median width on a divided highway is measured between profile grade points. Profile grade points refer to the elevation of the roadway at specific locations, allowing for a consistent measurement of the roadway geometry. This is crucial for understanding the design and safety of the highway, as it helps determine clearances and sight distances necessary for safe vehicle operation.

By measuring between profile grade points, the width can be accurately assessed in relation to the overall highway design, ensuring that the median fulfills its intended purpose, such as providing a buffer space between opposing lanes of traffic. This measurement methodology ensures that the functional aspects of the highway design are taken into account, promoting safety and effective traffic flow.