Q: The last time I drove on Coast Highway from Laguna Beach to Corona del Mar I noticed orangish-yellow dividers preventing you from making U-turns; I have never seen people doing that in all the years I have traveled that route. Why the orange dividers?

– Jim Stedt, San Clemente

A: To further keep motorists from making illegal — and dangerous — U-turns over double-yellow lines.

Those channelizers — flexible, plastic poles — are “a preventative measure to highlight the painted median (double yellow lines) to motorists, especially at night, and deter cross-over collisions,” said Nathan Abler , a Caltrans spokesperson.

The project that installed them was finished in May 2024, a temporary fix.

In the spring, Caltrans intends to remove the channelizers and put in what are called rumbl

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