CTRE

Center for Transportation Research and Education

CTRE|Research|In-Progress

In-Progress Research

SORT PROJECTS BY
Oct, 2026

Evaluation of Service Life Design of Bridges

Sep, 2024

Infrastructure Research and Technology Deployment Program

Feb, 2024

Partially Grouted Revetment for Low-Volume Road Bridges

Oct, 2023

Feasibility of Granular Road and Shoulder Recycling Phase II: Gradation Optimization for Improved Performance

Jun, 2023

Designing and Implementing Maintainable Pedestrian Safety Countermeasures

Feb, 2023

Increase Service Life at Bridge Ends through Improved Abutment and Approach Slab Details and Water Management Practices

Feb, 2023

Evaluate, Modify, and Adapt the ConcreteWorks Software for Iowa’s Use – Phase II

Jan, 2023

Base Stabilization Additives Effect on Granular Equivalency

Dec, 2022

Development of a Deck Overlay Method for Post Tensioned Box Girder Bridges using Ultra-High Performance Concrete (UHPC)

Dec, 2022

Evaluation of Messaging Techniques to Increase Vehicle Spacing at Work Zones

Nov, 2022

Building Information Modeling (BIM) for Bridges and Structures

Nov, 2022

Evaluation of Iowa Truck Parking Information and Management System

Oct, 2022

Development of Approaches to Quantify Superloads and their Impacts on the Iowa Road Infrastructure System

Sep, 2022

Guide for Standardized Modular Orthotropic Steel Deck

Sep, 2022

Traffic Signal Change and Clearance Interval Pooled Fund Study Synthesis Report

Aug, 2022

Deep Insight – Deep Extraction of Behavioral Intuition from Camera Sight inside Vehicles

Jul, 2022

Transverse Rumble Strips at Rural Intersections

Jul, 2022

Applying the Transportation Asset Management Plan (TAMP) System Performance Requirements to Pavement and Bridge Conditions

Jun, 2022

Iowa DOT Operations Division Cooperative Autonomous Transportation (CAT) Research Support

Jun, 2022

Work Zone Data Exchange Committee Participation and Data Feed

Jun, 2022

Improved Work Zone Data Feed

Jun, 2022

Cold In-Place Recycling Project Selection and Guidance for Iowa Roadways

Jun, 2022

Environmental Field Evaluation of Potassium Acetate

Jun, 2022

Iowa’s Pavement Preservation Guide

Jun, 2022

A Riverine Infrastructure Database (RIDB) for Rapid Assessment of Asset Vulnerability and Incorporating Resiliency into Agency Practices

Jun, 2022

Smart Arrow Board Evaluation Supporting Iowa DOTs QPL

Jun, 2022

Audible Attenuator

Jun, 2022

Development of Effective Accelerated Bridge Construction (ABC) Methods for Pile-Footing-Column Systems

Jun, 2022

Development of Effective Accelerated Bridge Construction (ABC) Methods for Bridge Abutment Design and Construction

Jun, 2022

Evaluating the Performance of Right-Turn-On-Red Operation at Signalized Intersections (With Single and Dual Right Turn Lanes)

Jun, 2022

Developing Guidance Documents and Training Workshops to Support Enhancement of the State DOTs Transportation Asset Management Plans

May, 2022

Road Safety Calculator Improvement and Expansion

Apr, 2022

Work Zone Activity Data Logging – Phase II

Apr, 2022

Advancing Bridge Load Rating: Best Practices and Model Frameworks

Mar, 2022

Un-Ticketing: An Upside-Down Approach to Speed Compliance

Jan, 2022

Determining the Impact of Connected and Automated Vehicle Technology on State DOT Maintenance Programs

Dec, 2021

Groundwater System Impacts on the US 63 Railway Underpass Near Waterloo, Iowa – Phase I–IV

Dec, 2021

Field Testing of Non-Motorized Road User Accommodations for Work Zones

Dec, 2021

Development of a Smartphone-Based Road Performance Data Collection Tool

Dec, 2021

Unreported Deer Crashes On Major Iowa Highways

Dec, 2021

Iowa Automated Permitting System Report to Legislature

Dec, 2021

Development of In-Situ Cyclic Borehole Shear Soil Test Device

Dec, 2021

Creation of an Expanded Three-lane Database for the State of Iowa

Dec, 2021

Iowa DOT Synthesis of Transverse Rumble Stripes at Rural Stop Controlled Intersections

Nov, 2021

Evaluation of Road Weather Messages on DMS Based on Roadside Pavement Sensors

Nov, 2021

Influence of Infrastructure Design on Distracted Driving

Oct, 2021

Self-Heating Electrically Conductive Concrete Demonstration Project

Oct, 2021

Low-Cost Rural Surface Alternatives Phase IV: Frost Depth Monitoring and Prediction

Sep, 2021

Evaluation of Performance of a Short-Span T-Beam Bridge in Buchanan County

Sep, 2021

Evaluation of RePLAY for Mainline, Shoulders, and Rumbles: Pilot Study in Clinton County

Sep, 2021

Fatigue Evaluation of Reinforced and Unreinforced Hand Holes in Light Poles

Sep, 2021

Coarse Aggregate Deterioration in Granular Surfaces and Shoulders

Sep, 2021

Impact of Pavement Friction on Traffic Safety, Phase 1: Pavement Friction Evaluation

Sep, 2021

ICAT Dashboards

Aug, 2021

Iowa’s Work Zone Data Exchange (WZDX) Demonstration Project

Jul, 2021

Evaluation of Work Zone Safety Using SHRP2 Naturalistic Driving Study Data

Jul, 2021

Covid-19 Impacts on Speed and Safety for Rural Roads and Work Zones

Jun, 2021

Develop Statewide Urban Design Standards and Specifications Manuals for Public Improvements

Jun, 2021

Development of a Comprehensive Access Management Policy and Guidelines

Jun, 2021

Low-Cost Rural Surface Alternatives Phase III: Demonstration Project

Jun, 2021

High Friction Surface Treatment for High Crash Locations Phase II: Performance Assessment

Jun, 2021

Utilizing Interactive Virtual Reality Simulation as a Tool for Enhancing Safe Driving through Workzones

Jun, 2021

Data-Driven Identification of Candidates for Operational Improvement

Jun, 2021

Statewide Pavement Marking

Jun, 2021

Iowa DOT Operations Division Cooperative Autonomous Transportation (CAT) Research Support

Mar, 2021

Modeling Multidimensional Risk in Real-World Drivers with Diabetes

Feb, 2021

Utilizing Virtual Reality Technology for Increasing Public Awareness for Safe Driving Engagements and Traffic Situational Awareness

Feb, 2021

Document Use of Wider Edgelines in Iowa

Oct, 2020

Use of Innovative Technology to Deter Bat Bridge Use Prior to and During Construction

Sep, 2020

SAVER/ICAT Tutorial Phase II

Sep, 2020

Accelerated Innovation Deployment (AID) – Safety Impact

Aug, 2020

TIMELI: Traffic Incident Management Enabled by Large-data Innovations

Jul, 2020

Virtual Reality Implementation for Public Engagement: Display 1—Work Zone Safety

Jun, 2020

Identifying the Performance Potential for Intersection Control Using Advanced Infrastructure Sensing

Jan, 2020

Objectives and Performance-Based Management of Traffic Signal Operations

Dec, 2019

Use of SHRP2 NDS Data to Evaluate Roadway Departure Characteristics

Dec, 2019

Iowa Traffic Safety Improvement Program (TSIP) Process Improvement, Phase II

Sep, 2019

High Friction Surface Treatment for High Crash Locations

Sep, 2019

Iowa Local Road Safety Plans: Project 3, Phase II

Aug, 2019

Research Utilizing the SHRP2 Safety Data to Support Highway Safety

Jul, 2019

Deep-Learning Based Approach for Scene Analysis and Trajectory Tracking

Jun, 2019

Evaluating All-Weather Pavement Markings & Lab Methods to Simulate Field Exposure

Jun, 2019

Data Standards for Connected Autonomous Vehicles

Jun, 2019

Automated Traffic Signal Performance Measures (ATSPMs) Pilot Implementation

Jun, 2019

Iowa Signal Phasing and Timing (SPaT) and MAP Demonstration Project: Phase I

Jun, 2019

Assessing the Impact of Game Day Schedule and Opponents on Travel Patterns and Route Choice using Big Data Analytics

Jun, 2019

Pikalert CAV Demonstration

May, 2019

Performance and Load Response of Rigid Pavement Systems

May, 2019

Predictions of Driver Safety in Advancing Age: Real-World Recorders

Jan, 2019

SHRP2 (R02) – GeoTechTools Deployment Support

Dec, 2018

Can Missouri Gravel Beds Function as a Year-Round Production System to Improve Tree Root Structure and Fine Biomass vs. Traditional Pot in Pot Production Methods

Dec, 2018

Pavement Management Support for the Iowa DOT and Local Agencies

Sep, 2018

Go! Magazine

Aug, 2018

Autonomous Sensing Skin for Detection and Localization of Fatigue Cracks

Jun, 2018

Cost-Competitive Timber Bridge Designs for Long-Term Performance

Jun, 2018

Safety and Performance Criteria for Retroreflective Pavement Markers

Jun, 2018

Buchanan County Smart Timber GRS Abutment Bridge

May, 2018

Development of Quality Standards for Inclusion of High Recycled Asphalt Pavement Content in Asphalt Mixtures-Phase III

Mar, 2018

Michigan Rural Safety Performance Function (SPFs) Development and Support

Dec, 2017

AASHTOWare BrM Bridge Management System Implementation and Operation

Dec, 2017

Cement Changes and Solutions to the Industry

Dec, 2017

Highway Safety Improvement Program Implementation Process

Dec, 2017

Implementation of the Iowa DOT Pavement Management Optimization Model

Dec, 2017

Intermodal Gantry Crane Pavement and Foundation Design Improvement

Dec, 2017

NDOR Evaluation of Opportunities and Challenges of Using INRIX Data for Real-Time Performance Monitoring and Historical Trend Assessment

Oct, 2017

MnDOT LRRB Minnesota Local Agency Pavement Marking: Mining Existing Data

Sep, 2017

Accelerated Bridge Construction Approaches for Bridge Rehabilitation

Sep, 2017

Condition Assessment Tools for Post-Tensioned Bridges

Sep, 2017

Reliability of Element-Level Bridge Inspections

Sep, 2017

SHRP2 Implementation Assistance Program

Sep, 2017

Stream and Watershed Delineations using LiDAR Data

Aug, 2017

Bridges for Life: Better Data in Support of Performance Management Analysis

Aug, 2017

Developing Risk-Based Bridge Inspection Practices

Aug, 2017

I-74 Mississippi River Bridge VR Simulation

Aug, 2017

NCHRP Standard Definitions for Comparable Pavement Cracking Data

Jul, 2017

Cost-Effective Field Test Methods for LRFD Resistance Factors of Drilled Shafts

Jun, 2017

Culvert Lateral Earth Pressure Sensors: Instrumentation of a Box Culvert During and After Construction

Jun, 2017

Improved Analytical Techniques for Historic Covered Bridges-Phase II

Jun, 2017

Improved Ratings for Covered Bridges through Load Testing – Phase II

Jun, 2017

Development of a Smart Timber Bridge-Phase V: Development of a Vehicle Characterization

May, 2017

A Multidisciplinary Approach to Investigate Work Zone Safety using SHRP 2 Safety Data

Mar, 2017

Road-Based Accessibility to Essential Services

Feb, 2017

MnDOT Evaluation of Workzone Safety Using the SHRP2 Naturalistic Driving Study Data

Dec, 2016

Effect of Wind-Induced Unsteady Vortex Shedding, Diurnal Temperature Changes, and Transit Conditions on Truss Structures Supporting Large Highway Signs

Dec, 2016

Experimental Evaluation of Existing and Retrofit Designs of Bridge Finger Joints

Dec, 2016

Improved Sheet Pile Systems for Transportation Infrastructure

Dec, 2016

Optimizing Performance Characteristics of Steel Fiber-Reinforced Lightweight Concrete (SFRLWC) for Wearing Surface Application on Orthotropic Steel Decks

Dec, 2016

Roadway Infrastructure in Various 3D Visualization Modes

Nov, 2016

Networks Subject to Extreme Flood Events

Oct, 2016

Development of a Mix Formation and Pavement Design Using Asphalt-Rubber Binders and Biobased Additives

Aug, 2016

Technical Analysis to Support the Bridge Condition Performance Measure

Jun, 2016

Improving Adaptive/Responsive Signal Control Performance: Implications of Non-Invasive Detection and Legacy Timing Practices

Jun, 2016

Marketing Plan Implementation for Delineation of Curves: A Proven Safety Countermeasure

Dec, 2015

Active Traffic Management Case-Study: Phase 1

Dec, 2015

Development of Renewable Polymers for Use in Asphalt Pavements

Nov, 2015

Impact of Lower Asphalt Binder for Coarse HMA Mixes

Aug, 2015

Implementation of Thin Bonded Concrete Overlays of Asphalt Pavements (BCOAs)

Jun, 2015

Measuring Project Complexity and Its Impact

Jan, 2015

Development of a Smart Timber Bridge-Development of Data Processing Techniques for Determining Changes in Structural Stiffness

Sep, 2014

Evaluation of Thermal Integrity Profiling for Deep Foundations

Jun, 2014

Work Plan for the Bridge Center and Bridge Engineer Program FY2014-Dynamic Sensor

May, 2014

SEISMIC: Development and Verification of Concrete Models for Pier Walls and Hollow Columns

Mar, 2014

Static Load Test of a Steel Pile at a Sand Site for Adopting a Higher Resistance Factor

Sep, 2013

Charging Infrastructure Planning and Impact Assessment for Plug-in Electric Vehicles

Dec, 2012

Performance of Lightweight Foam Concrete Fill and Post-Grouted Drilled Shafts in Broadway Viaduct Replacement

Sep, 2010

Development and Field Evaluation of a Prototype Tool to Detect and Identify Left Turning Vehicles

Aug, 2010

A Demonstration Project for the Illinois Tollway Utilizing Post-Consumer Asphalt Roofing Shingles

Jun, 2010

Iowa Traffic Safety Data Service

Jun, 2010

Pavement Markings Concept

May, 2010

Go! Using an Online Magazine to Convey Real-World Math and Science Concepts Related to Transportation

Apr, 2010

Development of Stormwater Quality BMP Specifications

Feb, 2010

Application of Visualization and Simulation Program to Improve Work Zone Safety and Mobility

Dec, 2009

Enhancements to the Incident Mapping and Analysis Tools (IMAT)

Dec, 2009

Location Tool Support for TraCS Location Tool States

Dec, 2009

Minnesota Local Agency Pavement Marking Practices-Phase I

Dec, 2009

New Implementation of the Incident Location Tool

Sep, 2009

Incident Location Tool Support for Iowa DOT

Sep, 2009

Incident Location Tool Support for the Iowa Department of Transportation

Jun, 2009

CARS Location Database Creation, Update and Validation

Jun, 2009

CARS Location Database Update and Validation

Jun, 2009

Pavement Marking Demonstration Project

Apr, 2009

Intelligent Compaction for Evaluation of Geogrid Reinforced Base Material

Feb, 2009

Safety Data Improvement

Dec, 2008

Weatherview: XML Data Structure & Maintenance

Sep, 2008

Development of New Test Procedures for Measuring Fine and Coarse Aggregate

Aug, 2008

Geospatial safety analysis for highway curves and resurfacing projects

Aug, 2008

Laboratory Testing on HMA and Asphalt

Aug, 2008

Roadway Departure: Marketing, Outreach, and Education

Jul, 2008

Sign Management System for Iowa DOT

May, 2008

Iowa DOT Pavement Marking Management System: Research and Field Evaluation Assistance

Dec, 2007

Development and Demonstration of Fleet Management Strategies for Timber Bridges

Dec, 2007

National Training for Integrating Materials and Construction Practices in Concrete Pavements: A State-of-the-Practice Manual

Dec, 2007

Bridge Construction Practices Using Incremental Launching, NCHRP Project 20-07/Task 229

Nov, 2007

Assessment of Iowa Climatic Data and Its Integration into the AASHTO Mechanistic-Empirical Pavement Design Procedure

Nov, 2007

Testing Iowa Asphalt Mixtures for the AASHTO Mechanistic-Empirical Pavement Design Procedure

Nov, 2007

Concrete Pavement Preservation and Rehabilitation

Jul, 2007

Work Zone Forecasting Service

Jun, 2007

Development of a 5 Year Research Plan for the Development of a Smart Glued-Laminated Timber Bridge

Jun, 2007

Needs Assessment for Advancing Timber Utilization in Mainline and Shortline Railroad Applications

Jun, 2007

Older Driver Demonstration Study, City of Des Moines

Dec, 2006

County Non-FAE Paved Road Condition: Data Collection, Summary, and Delivery, Phase II

Nov, 2006

Evaluation of a Precast, Post-Tensioned Bridge Paving Notch

Nov, 2006

Investigation of the Impact of Rural Develoment on Secondary Road Systems (TR-548)

Oct, 2006

Safety and Operational Effectiveness of One-lane Roundabouts at High Speed Highways

Sep, 2006

Crash Mapping Analysis Tool for Minnesota DOT

Aug, 2006

Iowa Event Operations

Aug, 2006

Impact of Increased Freight Traffic on Pavement Maintenance Costs

Aug, 2006

Snow and Ice Operations Cost Analysis

Jul, 2006

Cooperative Intersection Collision Avoidance System Benefit/Cost Analysis Tool

Jun, 2006

Evaluation of Fine Aggregate Characteristics Tests and Their Relationship to HMA Performance

Jun, 2006

High-Speed Expressway Intersections Study of Crash Risk Factors

Jun, 2006

Testing Iowa Portland Cement Concrete Mixtures for the Mechanistic-Empirical Pavement Design Guide

Dec, 2005

Minnesota Mapping Analysis Tool (MnMAT) Enhancements

Dec, 2005

Winter Weather Crash Trends on Iowa Primary Roads

Burdine, Nick

bird@iastate.edu | View Profile

Systems Analyst, InTrans , Institute for Transportation

Affiliate Researcher, Center for Weather Impacts on Mobility and Safety

Day, Christopher

cmday@iastate.edu | View Profile

Affiliate Researcher , Institute for Transportation

Assistant Professor, Department of Civil, Construction, and Environmental Engineering

Dong, Jing

jingdong@iastate.edu | View Profile

Transportation Engineer, CTRE , Institute for Transportation

Associate Professor, Department of Civil, Construction, and Environmental Engineering

Hallmark, Shauna

shallmar@iastate.edu | View Profile

Director, InTrans , Institute for Transportation

Professor, Department of Civil, Construction, and Environmental Engineering

Director, Midwest Transportation Consortium

Hans, Zachary

zhans@iastate.edu | View Profile

Director, CWIMS , Institute for Transportation

Director, Center for Weather Impacts on Mobility and Safety

Hawkins, Neal

hawkins@iastate.edu | View Profile

Associate Director, InTrans , Institute for Transportation

Adjunct Lecturer, Department of Civil, Construction, and Environmental Engineering

Co-Director, REACTOR

Knickerbocker, Skylar

sknick@iastate.edu | View Profile

Research Engineer, REACTOR , Institute for Transportation

Co-Director, REACTOR Laboratory

Naraghi, Hossein

hnaraghi@iastate.edu | View Profile

Research Engineer, CTRE , Institute for Transportation

Nlenanya, Inya

inya@iastate.edu | View Profile

Transportation Research Specialist/GIS Specialist, CTRE , Institute for Transportation

Program Coordinator, Iowa Pavement Management Program

Oneyear, Nicole

noneyear@iastate.edu | View Profile

Associate Scientist, CTRE , Institute for Transportation

Sharma, Anuj

anujs@iastate.edu | View Profile

Research Scientist and Leader, REACTOR , Institute for Transportation

Co-Director, REACTOR Laboratory

Associate Professor, Department of Civil, Construction, and Environmental Engineering

Shaw, John

jwshaw@iastate.edu | View Profile

Researcher, CTRE , Institute for Transportation

Affiliate Researcher, Center for Transportation Research and Education

Smadi, Omar

smadi@iastate.edu | View Profile

Director, CTRE , Institute for Transportation

Associate Professor, Department of Civil, Construction, and Environmental Engineering

Wood, Jonathan

jwood2@iastate.edu | View Profile

Faculty Affiliate, CTRE , Institute for Transportation

Assistant Professor, Department of Civil, Construction, and Environmental Engineering

TOP