The Iowa Department of Transportation (Iowa DOT) is trialing a new audible warning system on its fleet of Impact Protection Vehicles (IPVs) that act as mobile crash barriers to protect workers and equipment in highway work zones.
New Iowa DOT attenuator trucks in action
Rachelle Harry
Rachelle joined Traffic Technology International in early 2016 after having worked for an HR magazine and prior to that, as a freelance sub editor for various lifestyle consumer magazines. As deputy editor, she supports the editor in making each issue and updating the website. Outside of work, she enjoys tap dancing, playing the piano and video games, and eating spicy food.