Drivers could turn left on red only when moving from a one-way street to another one-way street. They must come to a complete stop, yield to pedestrians and oncoming traffic, and obey any signs ...

But Martinez says there’s no reason the state can’t put up signs in the 4-by-6 foot range with the very clear and specific message: Left Lane For Passing Only, Slow Traffic Keep Right.

Animation provided to FOX31 by Wheat Ridge shows how CFIs shift left-turn traffic across Wadsworth Boulevard ... on its website where residents can sign up for notifications.

Some locations prohibit a left turn and signs will be posted. If there are doubts it is safest to check the route or pull over to reassess your traveling plans.