Assessment of the effect on traffic accidents of the lowering of the legal drinking age in Illinois /

On cover: Illinois traffic safety programs, report of evaluation or assessment.

Concentrated traffic enforcement program, Park Ridge : final report /

On cover: Illinois traffic safety programs, report of evaluation or assessment. Concentrated traffic enforcement program, Park Ridge, Illinois, final report.

Concentrated traffic enforcement program : Illinois State Police evaluation of second year /

Cover title: Illinois traffic safety programs.

Concentrated traffic enforcement program : comprehensive evaluation of local community projects /

"April 1983."

Concentrated traffic enforcement program : project specifications.

"June 1978."

Concentrated traffic enforcement program, Evanston : first year report /

On cover: Illinois traffic safety programs, report of evaluation or assessment. Selective traffic enforcement program, Evanston, first year report.

Evaluation of nine FY 96 Traffic Law Enforcement Program (TLEP) projects in Illinois /

"February 1998."

Evaluation of eight Traffic Law Enforcement Program (TLEP) projects in Illinois /

"June 1999."

Evaluation of the Traffic Law Enforcement Program (TLEP) and the Local Alcohol Program (LAP) projects in Illinois /

"May 2001."

Illinois Department of Transportation county highway and county traffic maps held by the Illinois State Library.

"April 2005."

Illinois supplement to the national manual on uniform traffic control devices.

"Adopted March 1990."

Illinois supplement to the national manual on uniform traffic control devices /

"March 10, 2011."--cover letter.

Optimization of traffic signal controls within equilibrium route choice models : final report to Illinois Department of Transpotation/

Cover title.

Physical changes associated with navigation traffic on the Illinois and upper Mississippi Rivers /

"Prepared for U.S. Geological Survey, Environmental Management Technical Center."

Quality standard for work zone traffic control devices, 1998.

These standards, covering highway work zone traffic control devices, were developed for suppliers and contractors doing work for the Illinois Dept. of Transportation.