Can’t find what you're looking for? See also the Institute for Transportation, CTRE’s administrative home at Iowa State University.



Download full-text reports of research conducted by CTRE staff and CTRE-affiliated staff; older reports are listed but are not available as full-text, online documents.

Focus Group on Environmental Research and Technology Transfer Needs Related to Transportation: Summary and Problem Statements, August 2004 (650k *pdf)

Technology transfer summaries

Download short (2–4 pages) documents that present research in a brief, accessible format for practitioners.

Conference papers

Download conference papers presented by CTRE staff at various conferences.

Traffic safety-related

CTRE has published numerous reports and several manuals and brochures related to traffic safety. The reports are grouped by topic for quick reference.

Handbooks, manuals, and other helpful references

Access managment


Traffic safety

CTRE en Route newsletter

CTRE's biannual e-newsletter describing current research projects, events, and people, last published in the summer of 2008

CTRE annual reports

Between 1997 and 2005, CTRE published a biennial (every 2 years) report rather an annual report. View the list.


CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467


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