321.288  Control of vehicle — reduced speed.
  1.  A person operating a motor vehicle shall have the vehicle under control at all times.
  2.  A person operating a motor vehicle shall reduce the speed to a reasonable and proper rate:
  a.  When approaching and passing a person walking in the traveled portion of the public highway.
  b.  When approaching and passing an animal which is being led, ridden, or driven upon a public highway.
  c.  When approaching and traversing a crossing or intersection of public highways, or a sharp turn, curve, or steep descent in a public highway.
  d.  When approaching and passing an emergency warning device displayed in accordance with rules adopted under section 321.449, or an emergency vehicle displaying a revolving or flashing light.
  e.  When approaching and passing a slow moving vehicle displaying a reflective device or alternative reflective device as provided by section 321.383.
  f.  When approaching and passing through a road work zone.
[S13, §1571-m18; C24, 27, 31, 35, §5031; C39, §5023.04; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §321.288]
85 Acts, ch 167, §2; 87 Acts, ch 170, §7; 89 Acts, ch 296, §33; 97 Acts, ch 104, §20; 99 Acts, ch 102, §1; 2012 Acts, ch 1083, §2
Referred to in §321.285, §805.8A(6)(d)
For applicable scheduled fine, see §805.8A, subsection 6