Turning On Red Signals

Q: I have been wondering for some time now why there are different red lights for left turn lanes. Why do some of them have signs that say turn on arrow only, no turn on red, etc.? Is it then okay to turn on one that is just a red light with no sign?

A: IC Code 9-21-3-7 (3) spells it out for you. In short:

(3) Steady red indication means the following:
(A) Except as provided in clause (B), vehicular traffic facing a steady circular red signal alone shall stop at a clearly marked stop line. However, if there is no clearly marked stop line, vehicular traffic shall stop before entering the crosswalk on the near side of the intersection. If there is no crosswalk, vehicular traffic shall stop before entering the intersection and shall remain standing until an indication to proceed is shown.
(B) Except when a sign is in place prohibiting a turn described in this subdivision, vehicular traffic facing a steady red signal, after coming to a complete stop, may cautiously enter the intersection to do the following:
(i) Make a right turn.
(ii) Make a left turn if turning from the left lane of a one-way street into another one-way street with the flow of traffic.

Turning with a red light displayed under any oter circumstance is a violation of this statute, is considered "disregarding a red signal", and if stopped in violation, you can be cited with a ticket and 6 points on your driver's license!