Research Publications

Iowa DOT wanted to understand the best ways to prioritize efforts to reduce negative impacts of roads on protected wildlife.

This project will provide a comprehensive overview of best practices and innovative solutions for accommodating vulnerable road users in work zones.

This project will identify the methods used and the cost differences of ABC and compare them to a regular construction timeline.

This project will collect friction measurements to compare with concurrent weather conditions and use with artificial intelligence to develop a predictive roadway friction model.

In this project, researchers collaborated with three Iowa law enforcement agencies to investigate the impacts of rewards and positive reinforcement on driver behavior.

A sampling of the nearly 200 research projects that are in process or recently completed grouped by the four focus areas.

This project will quantify the impact of heavier loads on bridge service life.

The primary objective of this project is to develop specifications for the product mix, shoulder construction, and maintenance of completed RCC road shoulders.

The purpose of this project is to create BrR input models for standard bridges to help bridge owners rate the over 24,000 standard bridges currently in Iowa.

This project aims to develop a cost-effective UHPC using materials that are readily available in Iowa.

This project is evaluating existing Iowa DOT rock check dam standards along with proposed modifications to determine and develop the most efficient, cost-
effective designs and installation methods.

This project will extend the algorithms developed in earlier research using connected vehicle data to design a more advanced work zone management system.

Developing a standard design for single span concrete slab bridges.

This project will create a comprehensive, updated reference document for identifying which Iowa law code sections and case law apply to county and district projects.

The research team will develop an analytical tool for work zones to effectively visualize key performance indicators and measurements.

Investigators demonstrated successful implementation of a surfacing method using locally available aggregate and developed construction specifications to guide its use on Iowa roads.

New mapping methods will support Iowa DOT in providing more accurate and actionable flood warnings.

A new research project developed tools that transportation agencies can use to help local engineers determine when weight
restrictions can safely be lifted.

This research will identify problems and survey the industry to identify the best methods and equipment for successful joint sawing of different mix types.