Stop Signs and Signals

• At a stop sign, a driver stops at the first opportunity: the stop line, before the crosswalk, before the intersection, or where approaching traffic can be seen.
• Before going on, the driver yields to any vehicle in the intersection or close enough to be an immediate hazard.
• At a yield sign, the driver slows, stops if safety requires, and yields the same way.

• Iowa Code § 321.322StatuteVehicles entering stop or yield intersectionOpens legis.iowa.gov ↗

At a steady red light, traffic stops and waits, but unless a sign prohibits it may cautiously turn right from the right lane, or left from a one way street onto another one way street, without interfering with other traffic.

• Iowa Code § 321.257StatuteOfficial traffic-control signalOpens legis.iowa.gov ↗