CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

Iowa State University--Becoming the Best

Research Projects Sponsored By

Iowa Highway Research Board

In Progress

Project end date More information
Sep 2011 Evaluation of Rumble Stripes on Low-Volume Rural Roads in Iowa
Jul 2011 Wet Reflective Pavement Marking Demonstration Project (TR-597)
Oct 2010 Concrete Overlay Field Application Program
Sep 2010 Improving Concrete Overlay Construction (TR-600)
Aug 2010 Investigation of Warm-Mix Asphalt Using Iowa Aggregate (TR-599)
Feb 2010 Ethanol Plant By-Product Uses for Pavement GEO-Materials, TR-582 Stabilization
Jan 2010 Infrastructure Impacts of Iowa's Changing Economy (TR-593)
Nov 2009 Development of an Improved Agriculturally Based Deicing Product
Jul 2009 Development of Non-Petroleum Based Binders for Use in Flexible Pavements (TR-594)
Jul 2009 Bridge Rails and Approach Railing for Low-Volume Roads in Iowa (TR-592)
Jun 2009 Establishing a Dynamic Formula for Pile Design and Construction Control of Pile Driving
Jun 2009 Pavement Markings and Safety
Jun 2008 Development of LRFD Design Procedures for Bridge Piles in Iowa, TR-573
Apr 2008 Performance Evaluation of Concrete Pavement Granular Subbase (TR-554)
Dec 2007 Instrumentation of Precast, Post-tensioned Bridge Approach Pavement
Jul 2006 Evaluation of Hot Mix Asphalt Moisture Sensitivity, Phase II
Dec 2005 Optimization and Management of Materials in Earthwork Construction
Apr 2004 Economics of Using Calcium Chloride vs Sodium Chloride for Deicing/Anti-icing

Complete

Project end date More information
Feb 2009 Impact of Low-Shrinkage Mixes on Late-Age Random Cracking in Pavements with Use of Early-Entry Sawing (TR-587)
Nov 2008 Clear Zone - A Synthesis of Practice and an Evaluation of the Benefits of Meeting the 10 ft Clear Zone Goal on Urban Streets
Nov 2008 Use of Ultra-High Performance Concrete in Geotechnical
Sep 2008 Design Guide for Improved Quality of Roadway Subgrades and Subbases (TR-525)
May 2008 Measurements of Seasonal Changes and Spatial Variation in Pavement Subgrade Support Properties
Dec 2007 Appropriate Traffic Calming Techniques for Small Iowa Communities (TR-523)
Oct 2007 Investigation of Steel Stringer Bridges
Oct 2007 Field Evaluation of Timber Preservation Treatments
Oct 2007 Embankment Quality Phase 4: Application to Unsuitable Soils
May 2007 Thin Maintenance Surfaces, Phase 3
May 2007 Evaluation of Long Term Field Performance of Cold In-Place Recycled Roads
May 2007 Integral Abutment Bridge with Precast Concrete Piles (TR-438)
Oct 2006 Performance Evaluation of Rubblized Pavements in Iowa
Aug 2006 Composite Pavement Unbonded Overlays
Jun 2006 Evaluation of Unbonded Ultrathin Whitetopping of Brick Streets TR-466
Apr 2006 Laboratory Study of Structural Behavior of Alternative Dowel Bars
Apr 2006 Performance Evaluation of Steel Bridges: Phase II
Mar 2006 Iowa Data Collection and Analysis for the 2005-2006 National Surface Characteristics Field Experiment Plan
Mar 2006 Field Evaluation of Compaction Monitoring Phase 2
Mar 2006 Materials & Mix Optimization Procedures
Dec 2005 Innovative Solutions for Slope Stability Reinforcement and Characterization in Iowa Soils
Nov 2005 Design Guide and Construction Specifications for NPDES Site Runoff Control
Oct 2005 Guidelines for Removal of Traffic Control Devices in Rural Areas
Oct 2005 Rehabilitation of Concrete Pavements Utilizing Rubblization
Sep 2005 Design and Construction Procedures for Concrete Overlay and Widening of Existing Pavements
Sep 2005 Improving PCC Mix Consistency and Production by Mixing Improvements (TR-505)
Aug 2005 In-Situ Detection Methods for Material Related Distress (MRD) in Concrete Pavements
Jun 2005 Field Testing of Integral Abutments HR-399
Jun 2005 Implementing the Mechanistic-Empirical Pavement Design Guide (TR-509)
May 2005 Measuring Pavement Profile at the Slipform Paver
Apr 2005 Soil Stabilization of Non-Uniform Subgrade Soils TR461
Jan 2005 Evaluation of Hot Mix Asphalt Moisture Sensitivity
Dec 2004 Identification of the Best Practices for the Design, Construction, and Repair of Bridge Approach Sections
Sep 2004 Iowa Drainage Law Manual (TR-497)
May 2004 Development of Object-Oriented Specifications for Iowa DOT and Urban Standards
Apr 2004 Steel Diaphragms in Prestressed Concrete Girder Bridges TR-424
Apr 2004 Evaluation of Using Non-Corrosive Deicing Materials and Corrosion Reducing Treatments for Deicing Salts
Mar 2004 Development of a Method to Determine Pavement
Feb 2004 Field Eval of Compaction Monitoring Technology
Feb 2004 Determination of the Optimum Base Characteristics for Pavements
Dec 2003 Conducting Literature Searches for the HRB
Dec 2003 Stringless Concrete Paving TR490
Sep 2003 Statistical Analysis of Highway Needs Condition Data: Manual vs Automated
Oct 2002 Synthesis of Best Practices for Increasing Protection and Visibility of Highway Maintenance Protection
Sep 2002 Investigation into Improved Pavement Curing Materials & Techniques Phase 3, TR-479
Sep 2002 Investigation into Improved Pavement Curing Materials and Techniques: Part 1 (Phases 1 and 2), TR-451
Aug 2002 Retrofit Methods of Distortion Cracking Problems in Plate Girder Bridges TR436
Aug 2002 Development of Bridge Load Testing for Load Evaluation TR-445
Aug 2002 Synthesis of Dowel Bar Research HR1080
Jun 2002 Evaluation of Composite Pavement Unbonded Overlays
Jun 2002 Evaluation of Rammed Aggregate Piers for Highway Applications in Iowa Soils TR 443
May 2002 Technology Transfer of As Built and Prelimary Surveys by Total Station GPS, Video Logging, and Laser Scanning TR446
Mar 2002 Handbook of Simplified Practice for Traffic Studies TR 455
Mar 2002 Embankment Quality Phase 3, TR-401
Dec 2001 Low Water Stream Crossings in Iowa TR-453
Jun 2001 Durable, Cost Effective Pavement Marking Materials Phase 1, TR-454
Jun 2001 Systematic Identification of High Crash Locations, TR-442
Apr 2001 Iowa Guide and Reference Manual for Traffic Control Devices and Pavement Markings TR-441
Nov 2000 Development of Materials Training Course for Technicians TR-416
Nov 2000 Determine Initial Cause for Current Premature PCC Pavement Deterioration (TR-406)
Oct 2000 HWYNEEDS: Methodology, Analysis and Evaluation TR-433
Sep 2000 Impact of Deck Cracking Phase II, TR-405
Aug 2000 Laboratory Investigation into the Effects of Aggregate-Related Factors of Critical VMA in Asphalt Paving Mixtures TR-415
May 2000 Mobility and Safety Impacts of Winter Storm Events in a Freeway Environment TR-426
Feb 2000 Field Demonstration Project: Reclaimed Fly Ash as Select Fill Under P.C.C. Pavements TR 425
Jan 2000 Embankment Quality Phase 2, TR-401
Dec 1999 Response of Iowa Pavements to Heavy Agricultural Loads HR-1075
Aug 1999 Commemorative History of the Iowa Highway Research Board
Oct 1998 Feasibility of Using Automated Distress Data
Jun 1998 Preventing Cracking
Apr 1998 Embankment Quality Phase 1, TR-401
Apr 1998 Comprehensive Quality Incentive Program for Portland Cement Concrete Paving TR403
Apr 1998 Impact of Deck Cracking on Durability TR-405 (Phase 1)
Dec 1997 Access Management Awareness
Jul 1997 Guidelines for County Engineering Decisions
Jan 1994 Impacts on Safety of Left Turn Treatment