Effectiveness of roadway safety improvements
By: Gary B. Thomas.
Contributors: Iowa. Dept. of Transportation.; Iowa State University. Center for Transportation Research and Education.
Publisher: Center for Transportation Research and Education, Iowa State University
Published: 2001
Place of publication: Ames, Iowa
Language: eng
Number of pages: 29
Subjects: Roads -- Iowa -- Safety measures -- Evaluation.
Notes: Sponsored by the Iowa Dept. of Transportation. CTRE management project 00-61
Includes bibliographical references (leaf 28).
Final report.
"March 2001."