HRS §291C-35
Lane direction control signals
This rule is about special traffic lights above individual lanes on a street or highway. A green light means you may drive in that lane. A red light means you must not enter or drive in that lane.
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The statute, as written — Lane-direction-control signals
When lane-direction-control signals are placed over the individual lanes of a street or highway, vehicular traffic may travel in any lane over which a green signal is shown, but shall not enter or travel in any lane over which a red signal is shown.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.