Improving Traffic Safety Culture in Iowa – Phase II, July 2013

Phase II of Improving Traffic Safety Culture in Iowa focuses on producing actions that will improve the traffic safety culture across the state, and involves collaboration among the three large public universities in Iowa: Iowa State University, University of Northern Iowa, and University of Iowa. More specifically, this second phase synthesizes the expert opinions solicited in Phase I with prevailing public views and/or opinions gathered from a follow-up survey on Iowa’s 2000 public opinion survey, which the University of Northern Iowa, Center for Social and Behavioral Research, administered. More recent data on the opinions of Iowans and of people nationally contrasted with past data will help better define the public’s position on top safety culture issues. This, in turn, will provide a better basis for developing actionable, fundable, and ultimately successful strategies that will make a tangible difference in improving traffic safety in Iowa.

Development of an Expert System for Forecasting Frost on Bridges and Roadways in Iowa, HR-305, 1991

An expert system has been developed that provides 24 hour forecasts of roadway and bridge frost for locations in Iowa. The system is based on analysis of frost observations taken by highway maintenance personnel, analysis of conditions leading to frost as obtained from meteorologists with experience in forecasting bridge and roadway frost, and from fundamental physical principles of frost processes. The expert system requires the forecaster to enter information on recent maximum and minimum temperatures and forecasts of maximum and minimum air temperatures, dew point temperatures, precipitation, cloudiness, and wind speed. The system has been used operationally for the last two frost seasons by Freese-Notis Associates, who have been under contract with the Iowa DOT to supply frost forecasts. The operational meteorologists give the system their strong endorsement. They always consult the system before making a frost forecast unless conditions clearly indicate frost is not likely. In operational use, the system is run several times with different input values to test the sensitivity of frost formation on a particular day to various meteorological parameters. The users comment. that the system helps them to consider all the factors relevant to frost formation and is regarded as an office companion for making frost forecasts.

Development and Implementation of an Expert System for Forecasting Fog on US Highway 30 in Cedar Rapids, Iowa, HR-357, 1996

Several accidents, some involving fatalities, have occurred on U.S. Highway 30 near the Archer Daniels Midland Company (ADM) Corn Sweeteners plant in Cedar Rapids, Iowa. A contributing factor to many of these accidents has been the large amounts of water (vapor and liquid) emitted from multiple sources at ADM's facility located along the south side of the highway. Weather and road closure data acquired from IDOT have been used to develop a database of meteorological conditions preceding and accompanying closure of Highway 30 in Cedar Rapids. An expert system and a FORTRAN program were developed as aids in decision making with regard to closure of Highway 30 near the plant. The computer programs were used for testing, evaluation, and final deployment. Reports indicate the decision tools have been successfully implemented and were judged to be helpful in forecasting road closures and in reducing costs and personnel time in monitoring the roadway.

Summary of the opinions of the Attorney General, 2015

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2014

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2012

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2011

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2009

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2007

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2008

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2006

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2005

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2004

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2003

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.

Summary of the opinions of the Attorney General, 2002

Compiled biennially as Official opinions of the Attorney General in the Report of the Attorney General. Report year ends December 31. Slip opinions of the Attorney General.