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(1962) Iowa Study of No Passing Zone Signing, 1962. Transportation, Department of
(1970) Guidelines for the Inclusion of Left-Turn Lanes at Rural Highway Intersections, HR-147, 1970. Transportation, Department of
(1974) Iowa Highway Patrol Manpower Study prepared by the State Planning Agency of the Iowa Crime Commission, 1974. Public Safety, Department of
(2000) Evaluation of Work Zone Speed Reduction Measures, 2000. Transportation, Department of
(2001) Metric Training for the Transportation Industry Module V - Motor Vehicle Licensing and Enforcement, HR-376, 2001. Transportation, Department of
(2002) Temporary Speed Hump Impact Evaluation, 2002. Transportation, Department of
(2005) Guidelines for Removal of Traffic Control Devices in Rural Areas, TR-527, 2005. Transportation, Department of
(2015) Evaluation of the Confirmation Light System at Signalized Intersections in Medium to Large Iowa Communities to Reduce Red Light Running Violations”, TR-657, 2015. Transportation, Department of
(2016) Sign Effectiveness Guide TR-686, December 2016. Transportation, Department of
(2017) Iowa Motor Vehicle Enforcement FFY 2017 Annual Report. Transportation, Department of
(2018) Effect of Wind Induced Unsteady Vortex Shedding, Diurnal Temperature Changes, and Transit Conditions on Truss Structures Supporting Large Highway Signs TR-687, March 2018. Transportation, Department of
(2023) Unticketing: An Upside-Down Approach to Speed Compliance, TR-759, 2023. Transportation, Department of
