Honk would bet at least some are skid marks, which can be quite visible on concrete lanes. If he learns more from the Riverside County Transportation Commission about them, he will pass that along.

The sunset is pretty, but it can make it more difficult to see the lane markings on the 91 Express Lanes in Corona. (Photo by Tracy Phillips).

It’s unclear what those markings are — Honk would bet at least some are skid marks, which can be quite visible on concrete lanes. If he learns more from the Riverside County Transportation ...

Lane markings on concrete freeways can be hard to pick up The sunset is pretty, but it can make it more difficult to see the lane markings on the 91 Express Lanes in Corona. (Photo by Tracy Phillips).

It's a single-lane circle, but the paving markings indicate a double-lane circle, so it's easy to see the confusion. I used to think the same thing until I read one of your previous columns, which ...