March 16, 2009 - After doing a detailed analysis of Peek’s AxleLight^® non-intrusive laser axle sensors last year, the Iowa Department of Transportation has selected the Peek product to be installed in a permanent site along Interstate 35/80 in Des Moines. This is the first time that the AxleLight sensors, normally designed as a temporary study tool, have been installed in permanent roadside cabinets. AxleLight sensors shoot a beam of non-visible laser light across the roadway, just a few inches above the pavement. Using these sensors, and the ADR family of Automatic Data Recorders from Peek Traffic, state and municipal governments can count, classify, and analyze traffic flow.