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 Reports

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Oct 2014 Development of Preliminary Load and Resistance Factor Design of Drilled Shafts in Iowa, 4.93 mb pdf Project details
Oct 2014 Concrete Pavement Mixture Design and Analysis (MDA): Factors Influencing Drying Shrinkage, 574.57 kb pdf Project details
Oct 2014 Development of Asphalt Dynamic Modulus Master Curve Using Falling Weight Deflectometer Measurements, 4.51 mb pdf Project details
Oct 2014 Statewide Heavy-Truck Crash Assessment, 10.75 mb pdf Project details
Sep 2014 Electronic Construction Collaboration System - Final Phase, 2.23 mb pdf Project details
Sep 2014 Structural Characterization of UHPC Waffle Bridge Deck and Connections, 6.88 mb pdf Project details
Aug 2014 Analysis of the SHRP 2 Naturalistic Driving Study Data, NA pdf Project details
Aug 2014 Project Management Strategies for Complex Projects, NA pdf Project details
Aug 2014 Electronic Construction Collaboration System - Phase II, 1.61 mb pdf Project details
Feb 2014 Iowa Mass Concrete for Bridge Foundations Study - Phase II, 15.05 mb pdf Project details
Jan 2014 Concrete Pavement Mixture Design and Analysis (MDA): Comparison of Setting Time Measured Using Ultrasonic Wave Propagation With Saw-Cutting Times on Pavements in Iowa, 948.09 kb pdf Project details
Jan 2014 Concrete Pavement Mixture Design and Analysis (MDA): Comparison of Setting Time Measured Using Ultrasonic Wave Propagation With Saw-Cutting Times on Pavements in Iowa, 948.09 kb pdf Project details
Jan 2014 Deicer Scaling Resistance of Concrete Mixtures Containing Slag Cement, 514.95 kb pdf Project details
Jan 2014 Field Monitoring of Curved Girder Bridges with Integral Abutments, 15.24 mb pdf Project details
Dec 2013 Low-Cost Rural Surface Alternatives: Literature Review and Recommendations Final Report, 6.16 mb pdf Project details
Dec 2013 RFID Tags for Detecting Concrete Degradation in Bridge Decks, 940.56 kb pdf Project details
Nov 2013 2013 Iowa DOT Engineering Intern Development and Management Program, 1.85 mb pdf Project details
Nov 2013 Investigation of Warm Mix Asphalt for Iowa Roadways - Phase II, 7.34 mb pdf Project details
Oct 2013 Evaluation of Low Cost Traffic Calming for Rural Communities  Phase II, 4.52 mb pdf Project details
Oct 2013 MnDOT Toolbox of Countermeasures for Rural Two-Lane Curves, NA pdf Project details
Oct 2013 Sequential Dynamic Curve Warning System (Traffic and Parking Control Company (TAPCO)), 6.50 mb pdf Project details
Oct 2013 Integration of Bridge Damage Detection Concepts and Components Volume III: Wireless Bridge Monitoring Hardware, 2.41 mb pdf Project details
Oct 2013 Toolbox of Countermeasures for Rural Two-Lane Curves, 4.00 mb pdf Project details
Sep 2013 Investigation into Shrinkage of High-Performance Concrete Used for Iowa Bridge Decks and Overlays, 9.19 mb pdf Project details
Sep 2013 Western Iowa Missouri River Flooding: Geo-Infrastructure Damage Assessment, Repair, and Mitigation Strategies, 17.91 mb pdf Project details
Sep 2013 Synthesis of Work-Zone Performance Measures, 2.44 mb pdf Project details
Sep 2013 Performance of Recycled Asphalt Shingles in Hot Mix Asphalt, 5.81 mb pdf Project details
Aug 2013 Demonstration of Load Rating Capabilities through Physical Load Testing: Johnson County Bridge Case Study, 1.64 mb pdf Project details
Aug 2013 Improving Traffic Safety Culture in Iowa - Phase II, 706.11 kb pdf Project details
Jun 2013 Iowa Calibration of MEPDG Performance Prediction Models, 4.81 mb pdf Project details
Jun 2013 Iowa DOT Engineering Intern Development and Management Program: 2012, 860.02 kb pdf Project details
Jun 2013 Design Guide for Precast UHPC Waffle Deck Panel System, including Connections, 6.69 mb pdf Project details
Jun 2013 Evaluating Roadway Subsurface Drainage Practices, 3.26 mb pdf Project details
Jun 2013 A Guidebook for Construction Manager-at-Risk Contracting for Highway Projects, NA pdf Project details
Jun 2013 Feasibility Study for Detection and Quantification of Corrosion in Bridge Barrier Rails, 5.36 mb pdf Project details
May 2013 Evaluation of Mitigation for Safety Concerns on Low-Volume, Unpaved Rural Roads, 2.99 mb pdf Project details
May 2013 De-Icing Agent Performance Evaluation, 1.00 mb pdf Project details
May 2013 Use of Chemical Admixtures in Roller-Compacted Concrete for Pavements, 1.31 mb pdf Project details
May 2013 Improving the Accuracy and Usability of Iowa Falling Weight Deflectometer Data, 2.84 mb pdf Project details
May 2013 Training Development for Pavement Preservation, 15.93 mb pdf Project details
May 2013 Speed Management Toolbox for Rural Communities, 4.06 mb pdf Project details
Apr 2013 Quality Control/Quality Assurance Testing for Joint Density and Segregation of Asphalt Mixtures, 1.77 mb pdf Project details
Apr 2013 Laboratory and Field Testing of an Accelerated Bridge Construction Demonstration Bridge: US Highway 6 Bridge over Keg Creek, 5.26 mb pdf Project details
Apr 2013 Overview of Foundation Stabilization Technologies, 9.47 mb pdf Project details
Mar 2013 Predicting the Initial Retroreflectivity of Pavement Markings from Glass Bead Quality, NA pdf Project details
Mar 2013 Innovative Bridge Designs for Rapid Renewal: ABC Toolkit, NA pdf Project details
Jan 2013 Evaluating the Effectiveness of the City of Des Moines LED and RRFB Pedestrian Crossing Treatments, 1.63 mb pdf Project details
Jan 2013 School Bus Safety Study - Kadyn's Law, 2.63 mb pdf Project details
Dec 2012 Compaction "Roadeo" Field Demonstration: Roller-Integrated Compaction Monitoring and Subgrade Geosynthetic Reinforcement, 10.68 mb pdf Project details
Dec 2012 Performance Assessment of Lime and Fly Ash Chemically Treated Subgrade, 14.90 mb pdf Project details
Dec 2012 Evaluation of In-Use Fuel Economy and On-Board Emissions for Hybrid and Regular CyRide Transit Buses, 2.44 mb pdf Project details
Dec 2012 Evaluation of the Safety Edge in Iowa: Phase II, 4.13 mb pdf Project details
Dec 2012 Visualization Resources for Iowa State University and the Iowa DOT: An Automated Design Model to Simulator Converter, 1.64 mb pdf Project details
Nov 2012 Iowa Mass Concrete for Bridge Foundation Study - Phase I, 4.56 mb pdf Project details
Nov 2012 Evaluating the Effectiveness of Temporary Work-Zone Pavement Marking Products, 2.32 mb pdf Project details
Nov 2012 Integrated Risk Management for Improving Internal Traffic Control, Work-Zone Safety, and Mobility during Major Construction, 2.53 mb pdf Project details
Nov 2012 Road Safety Audit for IA 28 from the South Corporate Limits of Norwalk in Warren County through the IA 5 Interchange in Polk County, Iowa, 10.72 mb pdf Project details
Nov 2012 Characterization of Unbound Materials (Soils/Aggregates) for Mechanistic-Empirical Pavement Design Guide, 2.06 mb pdf Project details
Nov 2012 Existing Pavement Input Information for the Mechanistic-Empirical Pavement Design Guide, 2.07 mb pdf Project details
Nov 2012 Non-Destructive Evaluation of Iowa Pavements Phase 2: Development of a Fully Automated Software System for Rapid Analysis/Processing of the Falling Weight Deflectometer Data, 1.95 mb pdf Project details
Nov 2012 Timber Abutment Piling and Back Wall Rehabilitation and Repair (TR-616), 7.72 mb pdf Project details
Nov 2012 Validation of Pavement Performance Models for the Mechanistic-Empirical Pavement Design Guide, 1.61 mb pdf Project details
Nov 2012 Development of a High Speed Rigid Pavement Analyzer - Phase I Feasibility and Need Study, 1.95 mb pdf Project details
Nov 2012 Concrete Pavement Mixture Design and Analysis (MDA) Guide Specification for Highway Concrete Pavements: Commentary, 830.14 kb pdf Project details
Oct 2012 Deicer Scaling Resistance of Concrete Pavements, Bridge Decks, and Other Structures Containing Slag Cement: Phase 2: Evaluation of Different Laboratory Scaling Test Methods, 1.24 mb pdf Project details
Oct 2012 Development of Performance Properties of Ternary Mixtures: Field Demonstrations and Project Summary, 14.91 mb pdf Project details
Oct 2012 Development of Performance Properties of Ternary Mixtures: Laboratory Study on Concrete, 4.54 mb pdf Project details
Oct 2012 Technology Demonstrations Project: Environmental Impact Benefits with, 4.77 mb pdf Project details
Oct 2012 Asset Management and Safety: A Performance Perspective, 3.18 mb pdf Project details
Oct 2012 Investigation of Deterioration of Joints in Concrete Pavements, 1.76 mb pdf Project details
Oct 2012 Relationship between Speed and Lateral Position on Curves, 594.18 kb pdf Project details
Sep 2012 Development of a Bridge Safety Information System for the Saylorville Reservoir Bridge, 1.84 mb pdf Project details
Sep 2012 Horizontal Curve Identification and Evaluation, 897.88 kb pdf Project details
Sep 2012 Roadway Alignments as Assets: Evaluating Alternatives for Valuing Major Highway Corridor Rights of Way, 701.54 kb pdf Project details
Sep 2012 Development of a Conflict Analysis Methodology Using SSAM, 2.73 mb pdf Project details
Aug 2012 Evaluation of Low-Cost Treatments on Rural Two-Lane Curves, 2.52 mb pdf Project details
Aug 2012 Concrete Pavement Surface Characteristics: Key Findings and Guide Specifications, 1.59 mb pdf Project details
Jul 2012 Concrete Overlay Field Application Program Final Report: Volume I, 5.02 mb pdf Project details
Jul 2012 Concrete Pavement Mixture Design and Analysis (MDA): Effect of Aggregate Systems on Concrete Mixture Properties, 1.07 mb pdf Project details
Jun 2012 Development of a Database for Drilled SHAft Foundation Testing (DSHAFT), 1.96 mb pdf Project details
Jun 2012 Report of the 2nd Workshop for Technology Transfer for Intelligent Compaction Consortium, 6.35 mb pdf Project details
Jun 2012 Debris Mitigation Methods for Bridge Piers, 2.20 mb pdf Project details
Jun 2012 Wind Monitoring of the Saylorville and Red Rock Reservoir Bridges with Remote, Cellular-Based Notifications, 1.56 mb pdf Project details
Jun 2012 Investigation of Improved Utility Cut Repair Techniques Phase II, 22.46 mb pdf Project details
Jun 2012 Revision to the SUDAS Traffic Signal Standards - Phase 2, 3.81 mb pdf Project details
Jun 2012 Utility Cut Repair Techniques to Reduce Settlement in Repaired Areas, Phase 2 (TR-566), 22.46 mb pdf Project details
Jun 2012 Concrete Pavement Mixture Design and Analysis (MDA): Assessment of Air Void System Requirements for Durable Concrete, 723.45 kb pdf Project details
Jun 2012 Motorcycle Conspicuity - What Factors Have the Greatest Impact, 3.24 mb pdf Project details
May 2012 Development of LRFD Procedures for Bridge Piles in Iowa - Volume IV: Design Guide and Track Examples, 3.83 mb pdf Project details
May 2012 Wind Monitoring of the Saylorville and Red Rock Reservoir Bridges with Remote, Cellular-Based Notifications, 1.56 mb pdf Project details
May 2012 Iowa Task Report: US 18 Concrete Overlay Construction Under Traffic, 4.86 mb pdf Project details
May 2012 Road Safety Audit for James Avenue NW and 250th Street NW, from the North Corporate Limits of Tiffin, 6.50 mb pdf Project details
May 2012 Development of LRFD Procedures for Bridge Piles in Iowa--Volume IV: Design Guide and Track Examples, 3.83 mb pdf Project details
May 2012 Self-Consolidating Concrete--Applications for Slip Form Paving, Phase 2, 2.71 mb pdf Project details
Apr 2012 Traffic Safety Analysis for Local Agencies, 5.77 mb pdf Project details
Apr 2012 Toolbox of Countermeasures to Reduce Red Light Running, 2.34 mb pdf Project details
Apr 2012 Risk Mitigation Strategies for Operations and Maintenance Activities, 5.89 mb pdf Project details
Apr 2012 Effects of Implements of Husbandry (Farm Equipment) on Pavement Performance, 12.59 mb pdf Project details
Apr 2012 Road Safety Audit for the Intersection of US 59 and IA 9 in Osceola County, Iowa, 3.74 mb pdf Project details
Apr 2012 Literature Review and Assessment of Nanotechnology for Sensing of Timber Transportation Structures, NA pdf Project details
Mar 2012 Development of LRFD Procedures for Bridge Pile Foundations in Iowa--Volume III: Recommended Resistance Factors with Consideration of Construction Control and Setup, 12.40 mb pdf Project details
Mar 2012 Concrete Pavement Mixture Design and Analysis (MDA): Application of a Portable X-Ray Fluorescence Technique to Assess Concrete Mix Proportions, 831.90 kb pdf Project details
Feb 2012 A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity, NA pdf Project details
Feb 2012 Optimizing Cementitious Content in Concrete Mixtures for Required Performance, 1.82 mb pdf Project details
Feb 2012 Field Testing and Evaluation of a Demonstration Timber Bridge, 2.64 mb pdf Project details
Feb 2012 Evaluation of the Buena Vista IBRD Bridge: A Furthering of Accelerated Bridge Construction in Iowa, 10.62 mb pdf Project details
Feb 2012 Final Report: Geosynthetic Reinforced Soil for Low Volume Bridge Abutments, 15.33 mb pdf Project details
Jan 2012 Utilization of Remote Traffic Monitoring Devices for Urban Freeway Work Zone Assessment, 5.83 mb pdf Project details
Jan 2012 Final Report: Modified Sheet Pile Abutments for Low Volume Bridges, 13.44 mb pdf Project details
Jan 2012 Wet Reflective Pavement Marking Demonstration Project, 4.39 mb pdf Project details
Dec 2011 Electronic Construction Collaboration System - Phase III, 4.40 mb pdf Project details
Dec 2011 Sensitivity Evaluation of MEPDG Performance Prediction, NA pdf Project details
Dec 2011 Evaluating the Effectiveness of Red Light Running Camera Enforcement in Cedar Rapids and Developing Guidelines for Selection and Use of Red Light Running Countermeasures, 3.32 mb pdf Project details
Nov 2011 Evaluation of Rumble Stripes on Low-Volume Rural Roads in Iowa--Phase II, 2.63 mb pdf Project details
Nov 2011 Roadway Lighting and Safety: Phase II-Monitoring Quality, Durability, and Efficiency, 1.13 mb pdf Project details
Nov 2011 Final Report: Innovative Solutions for Slope Stability Reinforcement and Characterization: Vol. 1, 1.2 mb pdf Project details
Oct 2011 An Integrated Study of Pervious Concrete Mixture Design for Wearing Course Applications, 7.12 mb pdf Project details
Oct 2011 Development of Non-Petroleum Based Binders for Use in Flexible Pavements (TR-594), 4.56 mb pdf Project details
Oct 2011 TRB 2008 Paper: Variable feedback control intelligent compaction to evaluate subgrade and granular pavement layers: Field study at MN US 14, NA pdf Project details
Oct 2011 Intl. Journal of Pavement Engineering 2011 Paper: In-situ mechanistic characterizations of granular pavement foundation layers, NA pdf Project details
Oct 2011 Final Report: Intelligent Soil Compaction Systems, NA pdf Project details
Sep 2011 Quarterly Progress Reports, NA pdf Project details
Sep 2011 Development of LRFD Design Procedures for Bridge Piles in Iowa-Volume II: Field Testing of Steel Piles in Clay, Sand, and Mixed Soils and Data Analysis, 8.02 mb pdf Project details
Sep 2011 Evaluation of Electronic Speed Limit Signs on US 30, 1.98 mb pdf Project details
Sep 2011 Final Report: Iowa DOT Roller Integrated Compaction Monitoring Research and Implementation, Phase II, 9.84 mb pdf Project details
Sep 2011 Public Employees Leadership Institute, 5.14 mb pdf Project details
Aug 2011 A Transportation Safety Planning Tool for the City of Ames, 3.35 mb pdf Project details
Aug 2011 A Transportation Safety Planning Tool for the City of Ames, 3.35 mb pdf Project details
Aug 2011 Safety and Mobility Impacts of Winter Weather - Phase I, 1.98 mb pdf Project details
Jul 2011 Final Report: Fly Ash Soil Stabilization for Non-Uniform Subgrade Soils, Volume II: Influence of Subgrade Non-Uniformity on PCC Pavement Performance, 1.60 mb pdf Project details
Jul 2011 Iowa DOT Intelligent Compaction Research and Implementation: Phase I, 11.93 mb pdf Project details
Jul 2011 Iowa DOT Roller Integrated Compaction Monitoring Technology Research and Implementation - Phase II, 9.84 mb pdf Project details
Jun 2011 Iowa DOT Roller Integrated Compaction Monitoring Technology Research and Implementation: Phase II (Hot Mix Asphalt), 9.84 mb pdf Project details
Jun 2011 Development of a Technology Deployment Plan for the Use of Recycled Concrete Aggregate in Concrete Paving Mixtures, 721.70 kb pdf Project details
Jun 2011 Behavior Study of Merge Practices for Drivers at Work Zone Closures, 2.99 mb pdf Project details
Jun 2011 Lane Departure Safety Countermeasures: Strategic Action Plan for the Iowa Department of Transportation, 31.30 mb pdf Project details
Jun 2011 Rural Expressway Intersection Safety Toolbox Desktop Reference, 14.02 mb pdf Project details
Jun 2011 A Feasibility Study of Embedded Micro-Electromechanical Sensors, 6.64 mb pdf Project details
May 2011 Investigation of Warm-Mix Asphalt Using Iowa Aggregates, 5.69 mb pdf Project details
May 2011 Road Safety Audit for Marion County Road T15, 11.82 mb pdf Project details
May 2011 Road Safety Audit for Prince of Wales Island, Alaska, 16.13 mb pdf Project details
May 2011 Road Safety Audit for US 151 from Amana to US 30 in Cedar Rapids, 11.74 mb pdf Project details
May 2011 Final Report: Stabilization Procedures to Mitigate Edge Rutting for Granular Shoulders - Phase II, 26.93 mb pdf Project details
May 2011 Development of Updated Specifications for Roadway Rehabilitation Techniques, 1.15 mb pdf Project details
May 2011 Development of a Presence Assessment Tool for Iowa's Pavement Marking Management System, 949.09 kb pdf Project details
Apr 2011 Indiana SR25 Field Study Final Report, 2.60 mb pdf Project details
Apr 2011 Improving Traffic Safety Culture in Iowa, 1.53 mb pdf Project details
Mar 2011 The Actual Cost of Food Systems on Roadway Infrastructure, 636.19 kb pdf Project details
Mar 2011 Evaluation of Safety Edge Benefits in Iowa, 7.04 mb pdf Project details
Mar 2011 Development of a Smart Timber Bridge--A Five-Year Plan, NA pdf Project details
Jan 2011 Final Report: Identification and Evaluation of Pavement - Bridge Interface Ride Quality Improvement and Corrective Strategies, 29.21 mb pdf Project details
Jan 2011 Development of LRFD Design Procedures for Bridge Piles in Iowa-Volume I: An Electronic Database for PIle LOad Tests (PILOT), 4.92 mb pdf Project details
Jan 2011 Design, Construction, and Field Testing of an Ultra-High Performance Concrete Pi-Girder Bridge, 17.40 mb pdf Project details
Jan 2011 Development of LRFD Procedures for Bridge Pile Foundations in Iowa--Volume III: Recommended Resistance Factors with Consideration of Construction Control and Setup, 12.40 mb pdf Project details
Dec 2010 Bridge Vulnerability Assessment and Mitigation Against Explosions, 2.39 mb pdf Project details
Dec 2010 An Experimental Validation of a Statistical-Based Damage Detection Approach, 6.53 mb pdf Project details
Dec 2010 Report of the 1st Workshop for Technology Transfer for Intelligent Compaction Consortium, 3.66 mb pdf Project details
Dec 2010 Evaluation of Iowa’s 70 mph Speed Limit: Four Years Later, 273 kb pdf Project details
Dec 2010 Safety Analysis of Low Volume Rural Roads in Iowa, 8.38 mb pdf Project details
Nov 2010 Evaluation of the 24th Street Bridge, 8.40 mb pdf Project details
Nov 2010 North Dakota US12 Field Study Final Report, 4.94 mb pdf Project details
Nov 2010 Pavement Markings and Safety, 2.05 mb pdf Project details
Oct 2010 Final Report: In-Situ Compaction Measurements for Geosynthetic Stabilized Subbase: Weirton, West Virgina, 32.48 mb pdf Project details
Oct 2010 Identification of Practices, Design, Construction, and Repair Using Trenchless Technology, 9.14 MB pdf Project details
Sep 2010 Investigation of the Impacts of Rural Development on Iowas Secondary Road Systems, 2.77 mb pdf Project details
Sep 2010 Enhancing Motorcycle Conspicuity Awareness in Iowa, 1.76 mb pdf Project details
Aug 2010 Final Report: Rapid, Self-Contained In-Situ Permeameter for Field QA/QC of Pavement Base/Subbase Materials, 2.26 mb pdf Project details
Aug 2010 Safety Benefits of Paved Shoulders in Iowa, 2.69 mb pdf Project details
Aug 2010 In-Use Fuel Economy and Emission Benefits of Hybrid-Electric School Buses in Iowa, 2.24 mb pdf Project details
Jul 2010 Local Agency Pavement Marking Plan, 22.80 mb pdf Project details
Jun 2010 Improving Concrete Overlay Construction (TR-600), 34.1 mb pdf Project details
Apr 2010 Instrumentation and Monitoring of Precast Bridge Approach Tied to an Integral Abutment in Bremer County, 2.61 mb pdf Project details
Apr 2010 Mississippi US84 Field Study Final Report, 7.71 mb pdf Project details
Apr 2010 Ethanol Plant By-Product Uses for Pavement GEO-Materials Stabilization, TR-582, 2.4 mb pdf Project details
Apr 2010 Iowa's Renewable Energy and Infrastructure Impacts, 20 mb pdf Project details
Apr 2010 Final Report: Optimization and Management of Materials in Earthwork Construction (TR-501), 2.29 mb pdf Project details
Mar 2010 Bridge Rails and Approach Railing for Low-Volume Roads in Iowa (TR-592), 24.1 mb pdf Project details
Mar 2010 Evaluation of Hot Mix Asphalt Moisture Sensitivity Using the Nottingham Asphalt Test Equipment, Phase II (TR-555), 3.91 mb pdf Project details
Feb 2010 Effectiveness of Special Deer Management Hunts on Deer-Vehicle Crash Reduction, 8.48 mb pdf Project details
Feb 2010 Remote Monitoring of Historic Covered Timber Bridges for the Prevention of Arson and Vandalism, NA pdf Project details
Jan 2010 New York US219 Field Study Final Report, 4.99 mb pdf Project details
Jan 2010 Road Safety Audit for County Road H-46 in Jefferson County, Iowa, 1.63 mb pdf Project details
Jan 2010 Road Safety Audit for County Roads X-23 and W-62 in Lee County, Iowa, 1.09 mb pdf Project details
Jan 2010 Application of Visualization and Simulation Program to Improve Work Zone Safety and Mobility, 407 kb pdf Project details
Dec 2009 Road Safety Audit for IA 150/US 52 from I-380 to the Minnesota Border, 6.65 mb pdf Project details
Dec 2009 Road Safety Audit for IA 150/US 52 from I-380 to the Minnesota Border, 6.65 mb pdf Project details
Dec 2009 Evaluation of the Iowa Driver Improvement Program, 2.14 mb pdf Project details
Nov 2009 Road Safety Assessment for Franklin County, Ohio, 2.15 mb pdf Project details
Nov 2009 Road Safety Assessment for the Intersection of Olentangy River Road and Linworth Road in Franklin County, Ohio, 2.13 mb pdf Project details
Nov 2009 Safety Benefits of Paved Shoulders, 1.69 mb pdf Project details
Oct 2009 Construction Project Administration and Management for Mitigating Work Zone Accidents and Fatalities: An Integrated Risk Management Model, 1.41 mb pdf Project details
Oct 2009 Management of Rural Expressways for Improved Safety and Operational Performance, 8.12 mb pdf Project details
Sep 2009 Design and Evaluation of a Single-Span Bridge Using Ultra-High Performance Concrete, 3.46 mb pdf Project details
Sep 2009 Road Safety Audit for Intersection of IA 1 and County Road F-67 in Johnson County, Iowa, 2.01 mb pdf Project details
Sep 2009 Road Safety Audit for Intersection of IA 1 and County Road F-67 in Johnson County, Iowa, 2.02 mb pdf Project details
Aug 2009 Road Safety Audit for Intersection of US 218 and County Road C-57 (West Cedar Wapsi Road) in Black Hawk County, Iowa, 1.91 mb pdf Project details
Aug 2009 Road Safety Audit for Intersection of US 218 and County Road C-57 in Black Hawk County, Iowa, 1.92 mb pdf Project details
Jul 2009 Final Report: Implementation of Intelligent Compaction Performance Based Specifications in Minnesota, 18.49 mb pdf Project details
Jul 2009 Electronic Construction Collaboration - Phase 1, 710 kb pdf Project details
Jul 2009 Evaluation of Rumble Stripes on Low-Volume Rural Roads in Iowa: Phase I, 5.04 mb pdf Project details
Jul 2009 Support by State Departments of Transportation for Local Agency Safety Initiatives, 133 kb pdf Project details
Jun 2009 Analysis of Safety Benefits for Shielding of Bridge Piers, 5.2 mb pdf Project details
Jun 2009 Investigation into Freezing-Thawing Durability of Low Permeability Concrete with and without Air Entraining Agent, 2.2 mb pdf Project details
Jun 2009 Road Safety Audit for County Road W-55 in Washington County, Iowa, 625.21 kb pdf Project details
Jun 2009 Road Safety Audit for County Road X-37 in Louisa County, Iowa, 668.61 kb pdf Project details
Jun 2009 Road Safety Audit for US 6 from Iowa City to West Liberty in Johnson and Muscatine Counties, Iowa, 28.23 mb pdf Project details
Jun 2009 Bridge Deck Integrity Measurements for Asset Management, 4.6 mb pdf Project details
May 2009 Kansas US69 Field Study Report, 3.39 mb pdf Project details
May 2009 Improving Safety for Slow Moving Vehicles on Iowa's High Speed Rural Roadways, 12.9 mb pdf Project details
Apr 2009 Evaluation Framework for the Creation and Analysis of Integrated Spatially-referenced Driver-Crash Databases, 366 kb pdf Project details
Apr 2009 Spatial Scale of Clustering of Motor Vehicle Crash Types and Appropriate Countermeasures, 4.29 mb pdf Project details
Mar 2009 Effectiveness of Dynamic Messaging on Driver Behavior for Late Merge Lane Road Closures, 7.4 mb pdf Project details
Mar 2009 Road Safety Audit for I-380 through the Cities of Cedar Rapids and Hiawatha in Linn County, Iowa, 22.5 mb pdf Project details
Mar 2009 Road Safety Audit for I-380 through the Cities of Cedar Rapids and Hiawatha in Linn County, Iowa, 22.57 mb pdf Project details
Feb 2009 Crack Development in Ternary Mix Concrete Utilizing Various Saw Depths, 3.5 mb pdf Project details
Feb 2009 Road Safety Audit for Marshall County Road E-35, 5.70 mb pdf Project details
Feb 2009 Precast Concrete Elements for Accelerated Bridge Constructionted Construction Practices, 11.25 mb pdf Project details
Feb 2009 Precast Concrete Elements for Accelerated Bridge Construction Volume 2, 5.26 mb pdf Project details
Feb 2009 Road Safety Audit for Marshall County Road E-35 (Main Street) from the ECL of Marshalltown, Iowa, to Zeller Avenue, 5.7 mb pdf Project details
Feb 2009 Precast Concrete Elements for Accelerated Bridge Construction Volume 3. Laboratory Testing, Field Testing, and Evaluation of a Precast Concrete Bridge: Black Hawk County, 5.82 mb pdf Project details
Jan 2009 Evaluation of Iowa’s 70 mph Speed Limit: 2.5 Year Update, 1.1 mb pdf Project details
Jan 2009 Investigating Factors Contributing to Large Truck Lane Departure Crashes Using the Federal Motor Carrier Safety Administration's Large Truck Crash Causation Study (LTCCS) Database, 1.8 mb pdf Project details
Jan 2009 Synthesis of Traffic Calming Techniques in Work Zones, 3.6 mb pdf Project details
Dec 2008 Phase I (Laboratory): Investigation of Soil Stabilization Alternatives  Texas SH 130, 4.03 mb pdf Project details
Dec 2008 Best Practices for Low-Cost Safety Improvements on Iowa's Local Roads, 17 mb pdf Project details
Nov 2008 Toolbox to Assess Tradeoffs between Safety, Operations, and Air Quality for Intersection and Access Management Strategies, 10.7 mb pdf Project details
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, 6.8 mb pdf Project details
Nov 2008 Road Safety Audit for US 6 from the ECL of Iowa City to the WCL of West Liberty in Johnson and Muscatine Counties, Iowa, 9.1 mb pdf Project details
Nov 2008 Design and Performance Verification of UHPC Piles for Deep Foundations, 9 mb pdf Project details
Nov 2008 Texas FM156 Field Study Final Report, 4.86 mb pdf Project details
Nov 2008 Integration of Asset Management Systems with Load and Resistance Factor Design, 303 kb pdf Project details
Oct 2008 Road Safety Audit for the US 61/Harrison Street and West Locust Street Intersection in Davenport-Scott County, Iowa, 1.9 mb pdf Project details
Oct 2008 Design and Evaluation of a Single-span Bridge Using Ultra-High Performance Concrete, 18.79 mb pdf Project details
Oct 2008 Road Safety Audit for the US 61/Harrison Street and West Locust Street Intersection in Davenport, 1.94 mb pdf Project details
Oct 2008 Assessing the Spatial and Temporal Differences in Midwestern Crashes Relative to National Data: Implications for Public Policy Decisions, 1.13 mb pdf Project details
Sep 2008 Deicer Scaling Resistance of Concrete Pavements, Bridge Decks, and Other Structures Containing Slag Cement: Phase 1: Site Selection and Analysis of Field Cores, 8 mb pdf Project details
Sep 2008 Final Report: Design Guide for Improved Quality of Roadway Subgrades and Subbases (TR-525), 2.7 mb pdf Project details
Sep 2008 Iowa DOT Bridge Asset Management Using Pontis: Data Integration, Performance, and Decision Support Tools, 3.7 mb pdf Project details
Aug 2008 Evaluation of On-Road and Laboratory Engine Dynamometer Emission Tests to Compare the Emission Reduction Potential of Different Biodiesel Blends, 2.6 mb pdf Project details
Aug 2008 Implementation of HERS-ST in Iowa and Development /Refinement of a National Training Program, 1.7 mb pdf Project details
Aug 2008 Final Report: Investigation of Dual Roller-Integrated MDP/CMV Compaction Monitoring Technologies and Measurement Influence Depth, 8.18 mb pdf Project details
Aug 2008 A Decision Support System for Optimal Depot and Fleet Management, 2 mb pdf Project details
Jul 2008 Road Safety Audit for Union County IA 25 from the WCL of Creston to North H- 24 Intersection, 2.5 mb pdf Project details
Jul 2008 Final Report: Performance Evaluation of Concrete Pavement Granular Subbase - Pavement Surface Condition Evaluation, 12.86 mb pdf Project details
Jul 2008 Synthesis Study: Effectiveness of Safety Corridor Programs, Report on Tasks 1-3, 718 kb pdf Project details
Jul 2008 Road Safety Audit for Union County IA 25 from the WCL of Creston to North H-24 Intersection, 2.59 mb pdf Project details
Jul 2008 How to Reduce Tire-Pavement Noise: Interim Better Practices for Constructing and Texturing Concrete Pavement Surfaces, 5.1 mb pdf Project details
Jul 2008 Remote Health Monitoring for Asset Management, 1.91 mb pdf Project details
Jun 2008 Minnesota Rt4 Field Study Final Report, 4.00 mb pdf Project details
Jun 2008 Road Safety Audit Report for US 61 from the ECL of Muscatine to the WCL of Davenport, 17.5 mb pdf Project details
Jun 2008 Improving Variability and Precision of AVA Test Results and Developing Rational Specification Limits, 1.6 mb pdf Project details
Jun 2008 Road Safety Audit for US 52 from IA 136 to the NCL of Dubuque, 13.66 mb pdf Project details
Jun 2008 Road Safety Audit Report for US 61 from the ECL of Muscatine to the WCL of Davenport, 16.76 mb pdf Project details
Jun 2008 Toolbox to Evaluate the Impacts of Roundabouts on a Corridor or Roadway Network, 4 mb pdf Project details
Jun 2008 Integral Bridge Abutment-to-Approach Slab Connections, 9.75 mb pdf Project details
Jun 2008 Integral Bridge Abutment-to-Approach Slab Connection, 9.7 mb pdf Project details
Jun 2008 Impact of Some Site-Specific Characteristics on the Success of the Signalization of High-Speed Intersections, 294 kb pdf Project details
Jun 2008 Task 6: Material Thermal Input for Iowa Materials, 4.6 mb pdf Project details
Jun 2008 Feasibility of Visualization and Simulation Applications to Improve Work Zone Safety and Mobility, 4.6 mb pdf Project details
May 2008 Final Report: Case Study of Seasonal Variation in the Subgrade and Subbase Layers of Highway US 20, 4.8 mb pdf Project details
May 2008 Field Evaluation of Elliptical Steel Dowel Performance--Final Report, 637 kb pdf Project details
May 2008 The Utilization of Agriculturally Derived Lignin as an Antioxidant in Asphalt Binder, 1.7 mb pdf Project details
Apr 2008 Rehabilitation of Concrete Pavements Utilizing Rubblization and Crack-and-Seat Methods: Phase II - Performance Evaluation of Rubblized Pavements in Iowa, 8 mb pdf Project details
Apr 2008 Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Laboratory and Field Applications, Phase 3, 3.41 mb pdf Project details
Mar 2008 Material and Construction Optimization for Prevention of Premature Pavement Distress in PCC Pavements: Final Report, 12.7 mb pdf Project details
Feb 2008 Developing a Rural and Urban Roadway Lighting Practical Design Guide for Iowa (TR 540), 893 kb pdf Project details
Feb 2008 Use of Functional Silos to Optimize Agency Decision Making, 1.18 mb pdf Project details
Jan 2008 Minnesota Interstate Truck Parking Study, 1 mb pdf Project details
Jan 2008 usRAP Pilot Program Phase 2, 4.3 mb pdf Project details
Dec 2007 Developing an Effective Construction Training Program for Hispanic Supervisors and Craft Workers, Phase 4, 290 kb pdf Project details
Dec 2007 The Effectiveness of Iowa's Automated Red Light Running Enforcement Programs (RLR, Phase 2), 6.4 mb pdf Project details
Dec 2007 Implementation of the Federal Highway Administration Final Rule on Work Zone Safety and Mobility, 437 kb pdf Project details
Dec 2007 Nondestructive Evaluation of Iowa Pavements, Phase 1, 4.5 mb pdf Project details
Dec 2007 Development of Performance Properties of Ternary Mixtures: Phase I Final Report, 4 mb pdf Project details
Dec 2007 Field Evaluation of Timber Preservation Treatments for Iowa Highway Applications (IHRB-05-10), 2 mb pdf Project details
Dec 2007 Evaluation of Steel Bridges (Volume II): Structural Health Monitoring System for Secondary Road Bridges, 14.7 mb pdf Project details
Nov 2007 Evaluation of Gateway and Low-Cost Traffic-Calming Treatments for Major Routes in Small Rural Communities, 7.9 mb pdf Project details
Nov 2007 Development of Fatigue Design Procedures for Slender, Tapered Support Structures for Highway Signs, Luminaries, and Traffic Signals Subjected to Wind-Induced Excitation from Vortex Shedding and Buffeting, 5.3 mb pdf Project details
Nov 2007 The Adoption of Technologies, Policies, and Systems for Improving Fleet Fuel Performance, 278 kb pdf Project details
Oct 2007 Final Report: Embankment Quality, Phase 4: Application to Unsuitable Soils (TR-492), 6.5 mb pdf Project details
Oct 2007 Final Report: Investigation of Steel-Stringer Bridges: Substructure and Superstructure, Volume II, 12.8 mb pdf Project details
Sep 2007 Evaluation of Iowa's Graduated Driver's Licensing Program, 454 kb pdf Project details
Sep 2007 Improving Portland Cement Concrete Mix Consistency and Production Rate through Two-Stage Mixing, 4.5 mb pdf Project details
Aug 2007 ISU-FHWA-ACPA Concrete Pavement Surface Characteristics Program Part 2: Preliminary Field Data Collection, 16.4 mb pdf Project details
Aug 2007 Investigation of Methodologies Used by Less-Than-Truckload (LTL) Motor Carriers to Determine Fuel Surcharges, 207 kb pdf Project details
Aug 2007 Field Testing of Railroad Flatcar Bridges Volume II: Multiple Spans, 5.6 mb pdf Project details
Jul 2007 Assessment of Channelizing Device Effectiveness on High Speed/High Volume Roadways, 929 kb pdf Project details
Jul 2007 Flexible Start/Fixed Duration Contracting for Construction of Transportation Projects: A Case Study of the Paseo Bridge, 710 kb pdf Project details
Jun 2007 Lane Closure Policy Development, Enforcement, and Exceptions: A Survey of Seven State Transportation Agencies, 987 kb pdf Project details
Jun 2007 Final Report: Effective Shoulder Design and Maintenance (TR-531), 12 mb pdf Project details
Jun 2007 Managing Early Adoption of Biodiesel by Commercial Fleets, 737 kb pdf Project details
Jun 2007 Prefabricated Elements Case Study, 566 kb pdf Project details
Jun 2007 Roadway Design Standards for Rural and Suburban Subdivisions (TR-549), 1.2 mb pdf Project details
Jun 2007 Synthesis of Practices for Mitigating the Impact of Work Zones on Traffic, 947 kb pdf Project details
Jun 2007 Temporary Traffic Control and Enforcement of Traffic Laws in Closed Road Sections, 563 kb pdf Project details
May 2007 Evaluation of Long Term Field Performance of Cold In-Place Recycled Roads (TR-502)--Field and Laboratory Testing, 7.3 mb pdf Project details
May 2007 An Integral Abutment Bridge with Precast Concrete Piles (TR-438), 7.5 mb pdf Project details
May 2007 Investigation of Electromagnetic Gauges for Determining In-Place HMA Density, 1.7 mb pdf Project details
May 2007 Comparison of Disaster Logistics Planning and Execution for 2005 Hurricane Season, 399 kb pdf Project details
May 2007 Thin Maintenance Surfaces for Municipalities, 3.6 mb pdf Project details
May 2007 Task 4: Testing Iowa Portland Cement Concrete Mixtures for the AASHTO Mechanistic-Empirical Pavement Design Procedure, 1.8 mb pdf Project details
Apr 2007 Development of a New Process for Determining Design Year Traffic Demands (TR-528), 1.4 mb pdf Project details
Apr 2007 Final Report: Field Study of Compaction Monitoring Systems: Self-Propelled Non-Vibratory 825G and Vibratory Smooth Drum CS-533E Rollers, 13.85 mb pdf Project details
Mar 2007 Final Report: Field Validation of Intelligent Compaction Monitoring Technology for Unbound Materials and HMA, 14 mb pdf Project details
Mar 2007 Secondary Accident Data Fusion for Assessing Long-Term Performance of Transportation Systems, 537 kb pdf Project details
Feb 2007 Crash data validation: An Iowa case study, 390 kb pdf Project details
Jan 2007 Evaluation of Virtual Reality Snowplow Simulator Training: Final Report, 1.2 mb pdf Project details
Jan 2007 Impact of Curling, Warping, and Other Early-Age Behavior on Concrete Pavement Smoothness: Early, Frequent, and Detailed (EFD) Study, 9 mb pdf Project details
Jan 2007 Developing a Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Both Laboratory and Field Applications, 738 kb pdf Project details
Dec 2006 Field Evaluation of Elliptical Steel Dowel Performance--Interim Report, 1.1 mb pdf Project details
Nov 2006 Algona Mill Truck Dispatching Automation, 3.2 mb pdf Project details
Nov 2006 Smart Wetlands Mitigation for Iowa Department of Transportation Projects, 2.4 mb pdf Project details
Nov 2006 Using Digital Video Analysis to Monitor Driver Behavior at Intersections, 786 kb pdf Project details
Nov 2006 An Integrated Systems Approach to the Development of Winter Maintenance / Management Systems, 495 kb pdf Project details
Sep 2006 Evaluation of Virtual Reality Snowplow Simulator Training: A Literature Review, 348 kb pdf Project details
Sep 2006 Planning, Developing, and Implementing the Iowa Pavement Marking Management System (IPMMS): Phases I and II, 12 mb pdf Project details
Sep 2006 Final Report, 1.14 mb pdf Project details
Aug 2006 Evaluation of Composite Pavement Unbonded Overlays: Phase III (TR-478, HR-1093, Proj. 2), 2 mb pdf Project details
Aug 2006 Safety Impacts of Pavement Edge Dropoffs, 2.8 mb pdf Project details
Aug 2006 Toolbox to Address Safety and Operations on School Grounds and Public Streets Adjacent to Elementary and Middle Schools in Iowa, 8 mb pdf Project details
Jul 2006 Evaluation of U.S. and European Concrete Pavement Noise Reduction Methods, 2.5 mb pdf Project details
Jul 2006 Design Guide and Construction Specifications for NPDES Site Runoff Control (TR-508), 5.1 mb pdf Project details
Jul 2006 Southeast Michigan Local Road Concrete Road Durability Study, 1.8 mb pdf Project details
Jun 2006 Evaluation of Unbonded Ultrathin Whitetopping of Brick Streets (TR-466), 1.5 mb pdf Project details
Jun 2006 Local Roads Maintenance Workers' Manual Project details
Jun 2006 Using Scanning Lasers for Real-Time Pavement Thickness Measurement, Phase I (TR-538), 2.1 mb pdf Project details
May 2006 Developing an Effective Construction Training Program for Hispanic Supervisors and Craft Workers, Phase 3, 5.8 mb pdf Project details
May 2006 Remote Continuous Evaluation of a Bridge Constructed Using High-Performance Steel, 4 mb pdf Project details
May 2006 Evaluation of Corrosion Resistance of Different Steel Reinforcement Types, 2.5 mb pdf Project details
May 2006 usRAP Feasibility Assessment and Pilot Program, 6.2 mb pdf Project details
Apr 2006 Laboratory Study of Structural Behavior of Alternative Dowel Bars (Proj. 7), 2.5 mb pdf Project details
Mar 2006 Final Report: Field Evaluation of Compaction Monitoring Technology: Phase 2, 13.2 mb pdf Project details
Mar 2006 Materials and Mix Optimization Procedures for PCC Pavements (TR-484, Proj. 3), 1.7 mb pdf Project details
Feb 2006 Performance Measures for Iowa Transportation Systems, 934 kb pdf Project details
Feb 2006 Mix Design Development for Pervious Concrete in Cold Weather Climates, 3.2 mb pdf Project details
Feb 2006 Mix Design Development for Pervious Concrete in Cold Weather Climates, 3.2 mb pdf Project details
Jan 2006 Evaluation of Transverse Joint Forming Methods in PCC Pavement (TR-532), 3.9 mb pdf Project details
Jan 2006 Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Laboratory and Field Applications, Phase I (Proj. 17), 1.1 mb pdf Project details
Dec 2005 Impact to Concrete Pavement Smoothness from Curling, Warping, and Other Early-Age Behavior: Early, Frequent, and Detailed (Proj. 16), 2.1 mb pdf Project details
Dec 2005 Utility Cut Repair Techniques--Investigation of Improved Cut Repair Techniques to Reduce Settlement in Repaired Areas, 3.1 mb pdf Project details
Dec 2005 Field Experiments of Current Concrete Pavement Surface Characteristics Practices: Iowa Data Collection and Analysis, 901 kb pdf Project details
Nov 2005 Final Report: Self-Consolidating Concrete: Applications for Slip Form Paving, Phase 1, 9 mb pdf Project details
Nov 2005 Synthesis of Procedures to Forecast and Monitor Work Zone Safety and Mobility Impacts, 2 mb pdf Project details
Nov 2005 Management Systems for Inland Waterway Traffic Control, Volume I: Identification and Evaluation of Alternatives for Managing Lock Traffic on the Upper Mississippi River, 2 mb pdf Project details
Oct 2005 Guidelines for Removal of Traffic Control Devices in Rural Areas, 1.7 mb pdf Project details
Sep 2005 Design and Construction Procedures for Concrete Overlay and Widening of Existing Pavements (TR-511, Proj. 6), 5.3 mb pdf Project details
Aug 2005 In Situ Detection Methods for Materials-Related Distress in Concrete Pavements: Phase II (HR-1081, Proj. 1), 524 kb pdf Project details
Aug 2005 Impact of Weather on Urban Freeway Traffic Flow Characteristics and Facility Capacity (technical report), 461 kb pdf Project details
Aug 2005 Safety Effectiveness of High-Speed Expressway Signals, 428 kb pdf Project details
Jul 2005 Evaluation of Hot Mix Asphalt Moisture Sensitivity Using the Nottingham Asphalt Test Equipment (TR-483), 627 kb pdf Project details
Jul 2005 Applications for Reuse of Lime Sludge from Water Softening, 1.10 mb pdf Project details
Jun 2005 Spanish as a Second Language Survival Course and Concrete Pavement Basics Course, 21.3 mb pdf Project details
Jun 2005 Field Testing of Integral Abutments (HR-399), 7.8 mb pdf Project details
Jun 2005 Implementing the Mechanistic-Empirical Pavement Design Guide (TR-509), Implementation Plan, 1.3 mb pdf Project details
Jun 2005 Rehabilitation of Concrete Pavements Utilizing Rubblization and Crack and Seat Methods (TR-473), 13 mb pdf Project details
Jun 2005 Review of Stability Berm Alternatives for Environmentally Sensitive Areas, 1.2 mb pdf Project details
Jun 2005 Field Evaluation of Elliptical Fiber Reinforced Polymer Dowel Performance (Proj. 5), 2 mb pdf Project details
Jun 2005 Investigation of User Costs and Benefits of Winter Road Closures, 1.3M pdf Project details
Jun 2005 The Concrete Pavement Road Map: Long Term Plan for Concrete Pavement Research and Technology Project details
Jun 2005 Trucks and Twin Cities Traffic Management, 3 mb pdf Project details
May 2005 Developing an Effective Construction Training Program for American Supervisors and Hispanic Craft Workers, 1.4 mb pdf Project details
May 2005 Synthesis of Non-Destructive Testing Technologies for Geomaterial Applications, 1.8 mb pdf Project details
May 2005 Measuring Pavement Profile at the Slip-Form Paver (TR-512, Proj. 12), 1.96M pdf Project details
May 2005 A Web-Based Implementation of Winter Maintenance Decision Support System (WMDSS) Using GIS and Remote Sensing, 1.2 mb pdf Project details
Apr 2005 Final Report: Fly Ash Soil Stabilization for Non-Uniform Subgrade Soils, Volume I: Engineering Properties and Construction Guidelines, 7.25 mb pdf Project details
Apr 2005 Development of a Method to Determine Pavement Damage Due to Detours (TR-470), 283 kb pdf Project details
Apr 2005 Volume II: Influence of Subgrade Non-Uniformity on PCC Pavement Performance, 1.3 mb pdf Project details
Mar 2005 Iowa Drainage Law Manual (TR-497), 308 kb pdf Project details
Jan 2005 Health Monitoring of Bridge Structures and Components Using Smart-Structure Technology, Volume 2, 1.8 mb pdf Project details
Jan 2005 Final Report: Identification of the Best Practices for the Design, Construction, and Repair of Bridge Approach Sections (TR-481), 9.7 mb pdf Project details
Jan 2005 Cost Comparison of Treatments Used to Maintain or Upgrade Aggregate Roads, 500 kb pdf Project details
Dec 2004 Evaluation of Different Methods to Calculate Heavy-Truck VMT, 806 kb pdf Project details
Dec 2004 Impacts of Overweight Implements of Husbandry on Minnesota Roads and Bridges, 308 kb pdf Project details
Dec 2004 Interim Report, 2 mb pdf Project details
Dec 2004 Attributes of Good In-Service Concrete Pavements (Proj. 9), 1.2 mb pdf Project details
Oct 2004 Development of Object-Oriented Specifications for Iowa DOT and Urban Standards (TR-487), 3.9 mb pdf Project details
Oct 2004 Rural Expressway Intersection Synthesis of Practice and Crash Analysis, 3 mb pdf Project details
Sep 2004 Final Report: Field Evaluation of Compaction Monitoring Technology, Phase 1 (TR-495), 7 mb pdf Project details
Sep 2004 Steel Diaphragms in Prestressed Concrete Girder Bridges (TR-424), 1.9 mb pdf Project details
Sep 2004 Two-Lift Concrete Pavements to Meet Public Needs (Proj. 8), 286 kb pdf Project details
Sep 2004 Access Management Plan for Des Moines MPO, 5 mb pdf Project details
Sep 2004 Identification and Development of User Requirements to Support Robust Corridor Investment Models, 1.86 mb pdf Project details
Sep 2004 Material and Construction Optimization for Prevention of Premature Pavement Distress in PCC Pavements, Phases I and II, 2.6 mb pdf Project details
Aug 2004 Impact of Left-Turn Phasing on Older and Younger Drivers at High-Speed Signalized Intersections, 2.4 mb pdf Project details
Jul 2004 Corridor Management Pilot Project, Phase I, 16.9 mb pdf Project details
Jul 2004 Evaluating Speed Differences between Passenger Vehicles and Heavy Trucks for Transportation-related Emissions Modeling, 1.2 mb pdf Project details
Jun 2004 Alternatives to Truck Engine Idling, 1.3 mb pdf Project details
Jun 2004 Performance Properties of Ternary Mixtures for Concrete Pavements: Scoping Study (Proj. 13), 369 kb pdf Project details
Jun 2004 Research and Training of Private Transportation Providers for the Efficient and Effective Provision of Public Transportation Services, 984 kb pdf Project details
Jun 2004 Traffic Monitoring Program Planning with Remote Sensing, Phase 2, 2 MB pdf Project details
Jun 2004 Traffic Monitoring Program Plannning with Remote Sensing, Phase II, 2 mb pdf Project details
May 2004 Final Report: Determination of the Optimum Base Characteristics for Pavements (TR-482), 11.9 mb pdf Project details
May 2004 Effectiveness of All-Red Clearance Time on Intersection Accidents and Violation Trends Project details
Apr 2004 In-Pavement Pedestrian Flasher Evaluation, Cedar Rapids, Iowa, 428 kb pdf Project details
Mar 2004 Monitoring and Evaluation of the Westbound Roadway of the Iowa River Bridge, 4.1 mb pdf Project details
Mar 2004 Smooth, Quiet, Safe Concrete Pavements: Scoping Study (Proj. 14), 234 kb pdf Project details
Feb 2004 Decision-Support System for Management of Slope Construction and Repair Activities: An Asset Management Building Block, 365 kb pdf Project details
Feb 2004 Stringless Concrete Paving (TR-490), 1.2 mb pdf Project details
Jan 2004 Portland Cement Concrete Patching Techniques vs. Performance and Traffic Delay, 1.8 mb pdf Project details
Jan 2004 Developing an Effective Construction Training Program for Hispanic Supervisors and Craft Workers, Phase 1, 2.7 mb pdf Project details
Jan 2004 Evaluation of Racial Differences in Seat Belt and Child Restraint Use: A Review of Current Literature, 564 kb pdf Project details
Dec 2003 Coordination of Transit and School Busing in Iowa, 1.3 mb pdf Project details
Dec 2003 GIS-Based Integrated Rural and Small Urban Transit Asset Management System, 345 kb pdf Project details
Dec 2003 Properties of Blended Cements for Concrete Pavements, 1.2 mb pdf Project details
Nov 2003 Deploying the Maintenance Decision Support System (MDSS) in Iowa, 739 kb pdf Project details
Nov 2003 Evaluation of a Post-tension Strengthened Steel Girder Bridge Using FRP Rods/Strands, 1.5 mb pdf Project details
Oct 2003 Remote Sensing (LIDAR) for Management of Highway Assets for Safety, 1.4 mb pdf Project details
Oct 2003 Guidelines for a Roadway Management System (RMS) for Local Governments, 1.07 mb pdf Project details
Sep 2003 Development of a Comprehensive Access Management Plan and Training Program for Missouri, 1.2M pdf Project details
Sep 2003 Statistical Analysis of Highway Needs Condition Data: Manual vs Automated, 157 kb pdf Project details
Jul 2003 In Situ Detection Methods for Materials-Related Distress in Concrete Pavements, Phase I (Proj. 1), 5.2 MB pdf Project details
Jul 2003 Traffic Monitoring Program Planning with Remote Sensing, Phase I, 2.2 MB pdf Project details
Jun 2003 Pedestrian Crossing Safety Technology Assessment, 146KB pdf Project details
May 2003 Effectiveness of Extra Enforcement in Construction and Maintenance Work Zones--Midwest States Smart Work Zone Deployment Initiative: Year 4, 665k pdf Project details
Apr 2003 Detailed Planning for Research on Accelerating the Renewal of America's Highways, 4 mb pdf Project details
Apr 2003 Development of Bridge Load Testing for Load Evaluation (TR-445), 2.9 MB pdf Project details
Apr 2003 Evaluation of Composite Pavement Unbonded Overlays, Phases I and II (TR-478, Proj. 2), 2.1 mb pdf Project details
Apr 2003 Final Report: Evaluation of Rammed Aggregate Piers for Highway Applications in Iowa Soils (TR-443), 3.4MB pdf Project details
Apr 2003 Plan for the Mississippi River Trail in Iowa, 1.9MB pdf Project details
Mar 2003 Improved Pavement Curing Materials and Techniques: Part 2 (Phase III) (TR-479), 677KB pdf Project details
Jan 2003 Thin Maintenance Surfaces, Phase 2 with Guidelines for Winter Maintenance on Thin Maintenance Surfaces (TR-435), 3.3 mb pdf Project details
Jan 2003 Angle Parking on Iowa's Low Volume Primary Extensions in Small Towns, 253 kb pdf Project details
Jan 2003 Improving Efficiency of Transportation Projects Using Laser Scanning, 2.14MB pdf Project details
Jan 2003 Retrofit Methods of Distortion Cracking Problems in Plate Girder Bridges (TR-436), 2.5MB pdf Project details
Dec 2002 Process to Identify High Priority Corridors for Access Management Near Large Urban Areas in Iowa, 2 MB pdf Project details
Nov 2002 Handbook of Simplified Practice for Traffic Studies (TR-455) Project details
Oct 2002 Artificial Intelligence-Based Optimization of Management of Snow Removal, 1.45 mb pdf Project details
Oct 2002 Comparison of LIDAR and Conventional Mapping Methods for Highway Corridor Studies, 1.63MB pdf Project details
Oct 2002 Road Equipment Procurement and Utilization Study, 1.62MB pdf Project details
Aug 2002 Synthesis of Best Practices for Increasing Protection and Visibility of Highway Maintenance Vehicles and Workers (TR-475), 241KB pdf Project details
Aug 2002 Synthesis of Dowel Bar Research (HR-1080), 1.02MB pdf Project details
Aug 2002 Traffic Control Strategies in Work Zones with Edge Drop-Offs, 887KB pdf Project details
Jul 2002 Temporary Speed Hump Impact Evaluation, 8.1MB pdf Project details
Jun 2002 Comparison of LIDAR and Photogrammetry for Highway Planning and Design, 1.4 mb pdf Project details
Jun 2002 Embankment Quality, Phase 3 (TR-401), 1.3MB pdf Project details
Jun 2002 Evaluation of the Iowa DOT's Safety Improvement Candidate List Process, 540KB pdf Project details
Jun 2002 Highway Maintenance Concept Vehicle, Phase IV, 3.77MB pdf Project details
Jun 2002 MN/DOT Office of Research Services Web Site Upgrades, 638k pdf Project details
May 2002 Technology Transfer of As-Built and Preliminary Surveys by Total Station GPS, Video Logging, and Laser Scanning (TR-446), 1.07MB pdf Project details
Apr 2002 Improved Pavement Curing Materials and Techniques: Part 1 (Phases I and II) (TR-451), 705KB pdf Project details
Mar 2002 Methods to Reduce Traffic Speed in High Pedestrian Areas, 1.1MB pdf Project details
Feb 2002 Communicating Highway Safety: What Works, 587KB pdf Project details
Feb 2002 Iowa Tribal Consultation Process: State of Iowa Tribal Summit and Field Workshop, 141KB pdf Project details
Dec 2001 Low Water Stream Crossings in Iowa (TR-453), 1.07MB pdf Project details
Nov 2001 Paved Shoulders on Primary Highways in Iowa: An Analysis of Shoulder Surfacing Criteria, Costs, and Benefits, Final report, 326 kb pdf Project details
Oct 2001 Addressing Integration Issues and Developing a Protocol for Integration of Global Positioning Systems Data With Linear Referenced Data in an Asset Management System, 1.13 mb pdf Project details
Oct 2001 Dowel Bar Optimization, Phases I and II, 285k pdf Project details
Oct 2001 Fluorescent Yellow-green Backing/border for Work Zone Signs--Midwest States Smart Work Zone Deployment Initiative Year 3:, 457 kb pdf Project details
Oct 2001 GPS to LRM: Integration of Spatial Point Features with Linear Referencing Methods, 1.13MB pdf Project details
Sep 2001 Remote Sensing to Support Linear Referencing Systems, 3.5 mb pdf Project details
Jun 2001 Durable, Cost Effective Pavement Marking Materials, Phase I (TR-454), 268KB pdf Project details
Jun 2001 Traffic Signal Inventory Project, 1.39MB pdf Project details
May 2001 Systematic Identification of High Crash Locations (TR-442), 2.46MB pdf Project details
May 2001 Use of Remote Sensing to Identify Access Elements for Safety Analysis (Remote Sensing in Transportation Yr 1, Project 2), 242KB pdf Project details
May 2001 Use of Remote Sensing to Identify Access Elements for Safety Analysis, 242 KB pdf Project details
Apr 2001 Guidelines for the Conversion of 4-lane Undivided Roadways to 3-lane 2-way Left-turn Lane Facilities, 626KB pdf Project details
Apr 2001 Iowa Guide and Reference Manual for Traffic Control Devices and Pavement Markings (TR-441), 669KB pdf Project details
Mar 2001 Effectiveness of Roadway Safety Improvements, 298KB pdf Project details
Mar 2001 Highway Maintenance Concept Vehicle, Phase III Project details
Mar 2001 HWYNEEDS: Methodology, Analysis and Evaluation (TR-433), 139KB pdf Project details
Dec 2000 Evaluation of Automated Enforcement of Traffic Signal Violations in Iowa, 1.7MB pdf Project details
Dec 2000 Response of Iowa Pavements to Heavy Agricultural Loads (HR-1075), 306KB pdf Project details
Nov 2000 Traffic Safety & Engineering Informational Series Project details
Oct 2000 Determine Initial Cause for Current Premature PCC Pavement Deterioration (TR-406), 1.02MB pdf Project details
Jun 2000 A Laboratory Investigation into the Effects of Aggregate-Related Factors of Critical VMA in Asphalt Paving Mixtures (TR-415), 720KB pdf Project details
Apr 2000 Evaluation of Work Zone Speed Reduction Measures, 548KB pdf Project details
Mar 2000 Impact of Deck Cracking, Phase II (TR-405), 2.62MB pdf Project details
Feb 2000 Mobility and Safety Impacts of Winter Storm Events in a Freeway Environment (TR-426), 813KB pdf Project details
Dec 1999 Commercial Vehicle Parking, 173KB pdf Project details
Dec 1999 Embankment Quality, Phase 2 (TR-401), 1.52MB pdf Project details
Nov 1999 Access Management Research and Awareness Program Phase IV, 955KB pdf Project details
Nov 1999 Field Demonstration Project: Reclaimed Fly Ash as Select Fill Under P.C.C. Pavements (TR-425), 366KB pdf Project details
Sep 1999 Work Zone Simulation Model, 430KB pdf Project details
Aug 1999 Electronic Reference Library, Phase 1, 883KB pdf Project details
Jul 1999 Traffic Management Strategies for Merge Areas in Rural Interstate Work Zones, 764KB pdf Project details
May 1999 Crash Outcome Data Evaluation System (CODES): An Evaluation of Medical Crash Costs, 328 kb pdf Project details
Apr 1999 Geographic Information System-Based Accident Location and Analysis System (GIS-ALAS), Phase 2, 344 kb pdf Project details
Apr 1999 Thin Maintenance Surfaces (Amendment 14), 1.5 mb pdf Project details
Dec 1998 Iowa DOT Request for Proposals for the Development of a Linear Referencing System, 71 kb pdf Project details
Dec 1998 Evaluation of Information Technology to Support Distance Sharing and Learning, 521KB pdf Project details
Dec 1998 Feasibility of Using Automated Distress Data in the County Need Study (TR-418), 328KB pdf Project details
Dec 1998 Geographic Information System (GIS) Database Development, Integration, and Maintenance for the Iowa Department of Transportation Maintenance Division, 84 kb pdf Project details
Oct 1998 Midwest ITS/CVO Mainstreaming, 1.6 mb pdf Project details
Oct 1998 Improved Employment Data For Transportation Planning, 1.5MB pdf Project details
Oct 1998 Iowa Infrastructure Management Information System Pilot Project, 681KB pdf Project details
Oct 1998 Simulation and Analysis of Arterial Traffic Operations Along the US 61 Corridor in Burlington, Iowa, 403KB pdf Project details
Aug 1998 Advantage I-75 Mainline Automated Clearance System Final Evaluation Report Project details
Aug 1998 Multimodal Investment Analysis Methodology, Phase I Project details
Jul 1998 Coordination of Data Elements to support ISTEA Management Systems, Phase II, Statewide Implementation, 190 kb pdf Project details
Jul 1998 GIS Traffic Planning Tools, 1.49 mb pdf Project details
Jun 1998 Preventing Cracking at Diaphragm/Plate Girder Connections in Steel Bridges (TR-393), 1.4MB pdf Project details
May 1998 Iowa DOT GIS Implementation Plan (Strategic Plan Update), 396 kb pdf Project details
Apr 1998 Development of GIS Accident Location and Analysis Systems (GIS-ALAS), Phase I, 301KB pdf Project details
Apr 1998 Geographic Information System-Based Accident Location and Analysis System (GIS-ALAS), Phase 1, 302 kb pdf Project details
Jan 1998 Location Referencing System Team Report, 1.3 mb pdf Project details
Dec 1997 Access Management Awareness Program Work Plan for Phase II (Amendment 1) (TR-402), 5.01MB pdf Project details
Dec 1997 Des Moines ITS Early Deployment, 1.4MB pdf Project details
Dec 1997 Validation of Relationship of Cognitive Skills Losses to Driving Performance, 516KB pdf Project details
Dec 1997 Weigh-in-Motion Project and Handbook Project details
Oct 1997 Guidelines for County Engineering Decisions (TR-369), 263KB pdf Project details
Sep 1997 A Study on Speed Humps Project details
Jul 1997 Alternative Approaches to Providing Passenger Transportation in Low Density Cities: The Case of Council Bluffs, 6 mb pdf Project details
Jul 1997 Environmental Justice & Transportation Investment Policy, 8.2 mb pdf Project details
Jul 1997 Greenhouse Gas Action Plan for the Transportation Sector in Iowa, 4 mb pdf Project details
Jul 1997 Planning for Parking, 4.2 mb pdf Project details
Jul 1997 Spatial Data Systems for Transportation Planning, 3.6 mb pdf Project details
Jul 1997 Travel Time Estimation on Urban Arterials Using Loop Detector Data, 4.8 mb pdf Project details
Jun 1997 Collision Diagram Software Evaluation, 86KB pdf Project details
May 1997 Coordination of Data Elements from the ISTEA Management Systems: Phase I, 417 kb pdf Project details
Apr 1997 Highway Maintenance Concept Vehicle, Phase I, 438k pdf Project details
Feb 1997 GIS Technology Transfer of Transportation Modeling Environment to Local Agencies, Priority Technology Program of the FHWA, 112KB pdf Project details
Jan 1997 GIS Special Studies and Pilot Projects for Iowa DOT, 855 kb pdf Project details
Dec 1996 Iowa Access Management Awareness Project details
Nov 1996 Statewide Transportation Planning Model and Methodology Development Program, Phase 1, 443 kb pdf Project details
Sep 1996 Choosing Smart Technologies: A Guide for Busy Rural Paratransit Operators, 4.8 mb pdf Project details
Sep 1996 Efficient Distribution of Grain to Meet the Quality Needs of End-Users, 306KB pdf Project details
Sep 1996 Linking Real Time and Location in Scheduling Demand-Responsive Transit, 472KB pdf Project details
Sep 1996 The Potential of Steering Wheel Information to Detect Driver Drowsiness and Associated Lane Departure, 2.7 mb pdf Project details
Aug 1996 The Potential for Performance-Based Standards as the Basis for Truck Size and Weight Regulation in the United States, 461 kb pdf Project details
May 1996 AMASCOT: Automated Mileage and Stateline Crossing Operational Test, NA pdf Project details
May 1996 Development of Applications for Interactive Transportation Planning GIS, 646 kb pdf Project details
Mar 1996 Interstate Cooperation for Implementation of ITS/CVO Functions: Institutional Opportunities and Barriers, Executive summary, 2.8 mb pdf Project details
Jan 1996 Strategies for Winter Highway Maintenance, 3.4 mb pdf Project details
Jun 1995 Growth Management Strategies to Reduce Transportation Capital Costs In and Near Midwestern Urban Areas, 6 mb pdf Project details
Jun 1995 Improving Interbus Transfer with Automatic Vehicle Location, Year Two Report, 4.2 mb pdf Project details
Jun 1995 Intelligent Transportation Systems (ITS) and Commercial Vehicle Operations (CVO). Interstate Cooperation for Implementation of ITS-CVO Functions; Institutional Opportunities and Barriers Project details
Jun 1995 Interstate Cooperation for Implementation of ITS/CVO Functions: Institutional Opportunities and Barriers, Final report, 8.1 mb pdf Project details
May 1995 An Economic Investigation into Railroad Pricing and Car Allocation Programs, 2.5 mb pdf Project details
Apr 1995 GIS Strategic Plan for the Iowa Department of Transportation, 323 kb pdf Project details
Mar 1995 Recruiting and Retaining Women and Minorities in Public Sector Engineering Positions, 5.7 mb pdf Project details
Feb 1995 Transportation of Rural Elders and Access to Health Care, 4.7 mb pdf Project details
Jan 1995 The Economic Impact of Rural Highway Bypasses: Iowa and Minnesota Case Studies, 4.7 mb pdf Project details
Nov 1994 Policy Issues of an Iowa Longer Combination Vehicle Network, 6.4 mb pdf Project details
Oct 1994 Analysis of Policies for Highway Safety Improvements on Low-Volume Rural Roadways, 2.6 mb pdf Project details
Sep 1994 High-Speed Computing to Facilitate Real Time Analysis of Transportation Planning Alternatives, 230 kb pdf Project details
Sep 1994 Assessing the Independence, Mobility and Safety of Older Drivers, 4.2 mb pdf Project details
Aug 1994 Final report, 12.4 mb pdf Project details
Aug 1994 Value of County Engineers and Their Counterparts: Strategies to Expand the Shrinking Employment Pool, 5.2 mb pdf Project details
Jul 1994 Safety Impact of the Increased 65 MPH Speed Limit on Iowa Rural Interstates, 1.7 mb pdf Project details
Jun 1994 Estimating Pavement Damage from Longer and Heavier Combination Vehicles, 6.8 mb pdf Project details
Jun 1994 Safety and Highway Investment, 6.8 mb pdf Project details
Jan 1994 Impacts on Safety of Left-Turn Treatment at High Speed Signalized Intersections (HR-347), 7 mb pdf Project details
Jan 1994 Loading and Unloading Practices Related to Lumping: Status and Implications for Motor Carriers, Shippers, and Other Parties, Executive Summary and Final Report, 2.3 mb pdf Project details
Dec 1993 A GIS-Based Travel Demand Modeling System for Supercomputing, 76 kb pdf Project details
Sep 1993 Interacting Vehicles and Roadways with Elderly Drivers on Missouri Highways, 7.7 mb pdf Project details
Aug 1993 Improving Interbus Transfer with Automatic Vehicle Location, Year One Report, 4.3 mb pdf Project details
Jul 1993 Employment and Commuting by Rural Women on the Metropolitan Periphery, 6.7 mb pdf Project details
Jul 1993 Transportation and Iowa's Economic Future, 10 mb pdf Project details
Jun 1993 State Short Line Railroads and the Rural Economy, 7.8 mb pdf Project details
Jan 1993 Needs Assessment: Traffic Data Storage, Processing, and Dissemination, 1.2 mb pdf Project details
Nov 1992 Scenic Byways: Their Selection, Designation, Protection and Safety, 7.9 mb pdf Project details
Sep 1992 Microcomputer Transportation Planning Models to Develop Key Highway Commodity Flows and Estimate ESAL Values, 5.4 mb pdf Project details
Aug 1992 Economic Regulation of Intrastate Trucking: An In-Depth Examination of Iowa, Kansas, Missouri, and Nebraska, 6.6 mb pdf Project details
Aug 1992 Economic, Operating, and Infrastructure Impacts of Concentrated Truck Transport Service and Designated Commercial Highway Networks, 3.3 mb pdf Project details
Jun 1992 Public Sector Participation in Local Rail Service Projects with an Economic Development focus, 9.2 mb pdf Project details
Jun 1992 Strategies for Improving the Safety of Elderly Drivers, Year two, 8.6 mb pdf Project details
Feb 1992 Institutional Barriers and Opportunities for IVHS in Commercial Vehicle Operations: An Iowa Case Study, 6.1 mb pdf Project details
Nov 1991 Coordinated Paratransit in the Era of ADA, 13.5 mb pdf Project details
Aug 1991 Economic Analysis of Scenic Byways in Iowa, Kansas, Missouri, and Nebraska, 6.2 mb pdf Project details
Aug 1991 Essential Parameters for an Iowa Bridge Management System, 7 mb pdf Project details
Jul 1991 Dynamic Simulation Methods for Evaluating Vehicle Configuration and Roadway Design, 4.7 mb pdf Project details
Jun 1991 Strategies for Improving the Safety of Elderly Drivers, Year one, 10.4 mb pdf Project details
Mar 1991 Alternative investments in the Rural Branch Railroad and County Road Systems, 4.9 mb pdf Project details
Oct 1990 Changing Role of Freight Transportation Modes and Intermodal Freight, Final report, 17.9 mb pdf Project details
Oct 1990 Need for Transportation Alternatives for the Rural Elderly, 7.2 mb pdf Project details
Jul 1990 Computer-Aided Decision Support for Making Locational Decisions, 2 mb pdf Project details
Jul 1990 Transit-Related Joint Development in Small Cities: An Appriaisal of Opprtunities and Practice, 6.4 mb pdf Project details
May 1990 Emission Control in Diesel Engines by Alcohol Fumigation, 2.3 mb pdf Project details
Jan 1990 Dynamic Simulation Methods for Evaluating Motor Vehicle and Roadway Design and Resolving Policy Issues, 3 mb pdf Project details
Jan 1990 Road Investment to Foster Local Economic Development, 7.3 mb pdf Project details
Dec 1989 Changing Role of Freight Transportation Modes and Intermodal Freight, Summary of workshop, 1.2 mb pdf Project details
Road Safety Audits for County Road X-23 from IA 2 to the South Corporate Limits of West Point and for County Road W-62 from US 218 to IA 27 in Lee County, Iowa Project details