Iowa Code § 321.327: Pedestrians’ and bicyclists’ right-of-way.

1. Where traffic-control signals are not in place or in operation, the driver of a vehicle shall yield the right-of-way, slowing down or stopping if need be to so yield, to a pedestrian or a person riding a bicycle crossing the roadway within any marked crosswalk or within any unmarked crosswalk at an intersection, except as otherwise provided in this chapter.

2. A person convicted of a violation of this section is guilty of a simple misdemeanor punishable as a scheduled violation under section 805.8A, subsection 7.