The ‘Idaho Stop’ is a law in Idaho where a bicyclist, when coming to a stop sign, must slow down. However, if there is no traffic, they do NOT have to come to a complete stop and can continue through the stop sign. If there is other traffic, they must yield as usual.
In the case of red lights, they must still come to a brief stop. However, if there is no traffic, they can then continue through the red light as if it was a stop sign.
Whether it’s a stop sign or a red light, it’s still usually a good idea to come to a stop so that you can properly survey the road. Unseen hazards can be especially dangerous to bicyclists, who have very little protection in the case of an accident. Just because you didn’t see a car coming from a side road doesn’t mean it isn’t there, and accidents for cyclists are likely to come with severe injuries.