The ITSDS is a program of the
Center for Transportation Research and Education
ISU Research Park
2711 S. Loop Dr., Suite 4700
Ames, IA 50010

Phone: 515-294-8103
Fax: 515-294-0467

What's new

The Iowa DOT Office of Traffic and Safety has recently updated the Crash Analysis Resources website (  The site includes a variety of valuable crash data and resources, including

Data requests

Before you request a new study, please check our completed projects for similar studies and locations. Completed studies are easily repeatable in new areas, and updated reports may be available.

ITSDS fulfills requests three ways:

  1. Original and new studies
  2. Repeated studies for more current data
  3. Repeated formats in new areas