Department of Civil, Construction, and Environmental Engineering

Completed Research

Please note that not all completed projects are listed on this page yet or do all have online, final reports. To see only projects with final reports, please see research with final reports.

December 31, 2007

• Appropriate Traffic Calming Techniques for Small Iowa Communities
  
  
• Developing an Effective Construction Training Program for Hispanic Supervisors and Craft Workers, Phase 4
  
  
• The Effectiveness of Iowa's Automated Red Light Running Enforcement Programs (RLR, Phase 2)
  
  
• Asset Management Strategies to Mitigate Freeway Work Zone Congestion
  
  

November 30, 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
  
  

October 31, 2007

• Embankment Quality, Phase 4: Application to Unsuitable Soils (TR-492)
  
  
• Investigation of Steel Stringer Bridges: Substructures and Superstructures (TR-522)
  
  

August 28, 2007

• Temporary Traffic Control and Enforcement of Traffic Laws in Closed Road Sections
  
  

July 31, 2007

• Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Laboratory and Field Applications, Phase 2
  
  
• Flexible Start/Fixed Duration Contracting for Construction of Transportation Projects: A Case Study of the Paseo Bridge
  
  

July 30, 2007

• Assessment of Channelizing Device Effectiveness on High Speed/High Volume Roadways
  
  

June 30, 2007

• Effective Shoulder Design and Maintenance (TR-531)
  
  
• Synthesis of Practices for Mitigating the Impact of Work Zones on Traffic
  
  
• Prefabricated Elements Case Study
  
  

May 31, 2007

• Thin Maintenance Surfaces, Phase 3: Municipal Streets and Low-Volume Rural Roads (TR-507)
  
  
• An Integral Abutment Bridge with Precast Concrete Piles (TR-438)
  
  
• Evaluation of Long Term Field Performance of Cold In-Place Recycled Roads (TR-502)
  
  
• Investigation of Electromagnetic Gauges for Determination of In-Place Density of HMA Pavements (TR-547)
  
  

April 30, 2007

• Evaluation of Intelligent Compaction Systems
  
  
• Development of a New Process for Determining Design Year Traffic Demands (TR-528)
  
  

March 31, 2007

• State Traffic Safety Engineers List
  
  

February 28, 2007

• Field Validation of Intelligent Compaction Monitoring Technology for Unbound Materials and HMA
  
  

January 31, 2007

• Impact of Curling, Warping, and Other Early-Age Behavior on Concrete Pavement Smoothness: Early, Frequent, and Detailed (EFD) Study
  
  

November 30, 2006

• Smart Wetlands Mitigation for Iowa Department of Transportation Projects
  
  
• Algona Mill Truck Dispatching Automation
  
  

August 31, 2006

• Crash Record Validation Study
  
  
• Evaluation of Composite Pavement Unbonded Overlays: Phase III (TR-478, HR-1093, Proj. 2)
  
  

August 1, 2006

• Safety Impacts of Pavement Edge Dropoffs
  
  

July 31, 2006

• Concrete Pavement Surface Characteristics (Proj. 15, Part 1)
  
  

June 30, 2006

• Manual of Practice for Roadway Maintenance Workers (TR-514)
  
  
• Evaluation of Unbonded Ultrathin Whitetopping of Brick Streets (TR-466)
  
  

June 1, 2006

• Using Scanning Lasers for Real-Time Pavement Thickness Measurement, Phase I (TR-538)
  
  

May 31, 2006

• Evaluation of Corrosion Resistant Steel Reinforcing in the Deck Slab of a Three Span Prestressed Girder Bridge
  
  
• Evaluation of a Bridge Constructed Using High Peformance Steel
  
  
• Enhancements to the Iowa DOT Crash Mapping Analysis Tool (CMAT) Software
  
  
• Developing an Effective Construction Training Program for Hispanic Supervisors and Craft Workers, Phase 3
  
  

May 1, 2006

• US Road Assessment Program
  
  

April 30, 2006

• Laboratory Study of Structural Behavior of Alternative Dowel Bars (Proj. 7)
  
  

March 31, 2006

• Iowa Data Collection and Analysis for the 2005-2006 National Surface Characteristics Field Experiment Plan (TR-537)
  
  
• Field Evaluation of Compaction Monitoring Technology: Phase 2
  
  

March 28, 2006

• SHRP-II Revision, NCHRP Project 20-58(04)A
  
  

March 1, 2006

• Materials and Mix Optimization Procedures for PCC Pavements (TR-484, Proj. 3)
  
  

February 28, 2006

• Evaluation of Transverse Joint Forming Methods in PCC Pavement (TR-532)
  
  

February 1, 2006

• Mix Design Development for Pervious Concrete in Cold Weather Climates
  
  

January 31, 2006

• Synthesis of Procedures to Forecast and Monitor Work Zone Safety and Mobility Impacts
  
  
• Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Laboratory and Field Applications, Phase I (Proj. 17)
  
  

December 31, 2005

• Impact to Concrete Pavement Smoothness from Curling, Warping, and Other Early-Age Behavior: Early, Frequent, and Detailed (Proj. 16)
  
  
• Investigation of Improved Utility Cut Repair Techniques to Reduce Settlement in Repaired Areas (TR-503)
  
  
• Innovative Solutions for Slope Stability Reinforcement and Characterization in Iowa Soils (TR-489)
  
  
• County Non-FAE Paved Road Condition: Data Collection, Summary, and Delivery, Phase I 2003-2005
  
  
• PONTIS, Phase 4
  
  
• Ozonation of liquor: improvements in taste and practical implementation
  
  

December 30, 2005

• Ozone assisted Biological Treatment of Pesticide Wash water
  
  

November 30, 2005

• Self-Consolidating Concrete--Applications for Slip Form Paving, Phase 1
  
  

October 31, 2005

• Guidelines for Removal of Traffic Control Devices in Rural Areas
  
  
• School Zone Safety Handbook
  
  
• Rehabilitation of Concrete Pavements Utilizing Rubblization and Crack and Seat Methods (TR-473)
  
  
• Iowa Produce Market Potential Calculator
  
  

September 30, 2005

• Design and Construction Procedures for Concrete Overlay and Widening of Existing Pavements (TR-511, Proj. 6)
  
  

August 31, 2005

• Safety Effectiveness of High-Speed Expressway Signals
  
  
• In Situ Detection Methods for Materials-Related Distress in Concrete Pavements: Phase II (HR-1081, Proj. 1)
  
  
• Incident Mapping Analysis Tool: Oracle Database Interface
  
  

August 30, 2005

• Development of Sorbent for Cleaning Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier
  
  

August 15, 2005

• Access Management and Corridor Management Training
  
  

July 31, 2005

• Integration of Road Weather Information with Traffic Data
  
  
• Incident Location Tool (ILT)
  
  

June 30, 2005

• Implementing the Mechanistic-Empirical Pavement Design Guide (TR-509)
  
  
• Field Testing of Integral Abutments (HR-399)
  
  
• Development of Internet-based RWIS (Road Weather Information System) AWOS (Airport Weather Observation System) Information Delivery Tools (AKA Weatherview)
  
  
• Four-Lane to Three-Lane Analysis
  
  
• Field Evaluation of Elliptical Fiber Reinforced Polymer Dowel Performance (Proj. 5)
  
  

June 15, 2005

• Review of Stability Berm Alternatives for Environmentally Sensitive Areas
  
  

June 1, 2005

• Determination and Evaluation of Alternate Methods for Managing and Controlling Highway-Related Dust, Phase II (TR-506)
  
  
• Investigation of User Costs and Benefits of Winter Road Closures
  
  
• Trucks and Twin Cities Traffic Management
  
  

May 31, 2005

• Developing an Effective Construction Training Program for American Supervisors and Hispanic Craft Workers, Phase 2
  
  
• Safety Impacts of Street Lighting at Isolated Rural Intersections, Part II
  
  
• Synthesis of Non-Destructive Testing Technologies for Geomaterial Applications
  
  

May 1, 2005

• Measuring Pavement Profile at the Slip-Form Paver (TR-512, Proj. 12)
  
  

April 30, 2005

• Soil Stabilization of Non-Uniform Subgrade Soils (TR-461, Proj. 4)
  
  

April 1, 2005

• International Workshop on Sustainable Development and Concrete Technology
  
  

March 31, 2005

• Iowa's Pervious Pavement Water Quality Project
  
  

February 28, 2005

• Incident Mapping and Analysis Tool (IMAT)
  
  

January 31, 2005

• Evaluation of Hot Mix Asphalt Moisture Sensitivity Using the Nottingham Asphalt Test Equipment (TR-483)
  
  

December 31, 2004

• Crash Mapping Analysis Tool (CMAT)
  
  
• In-Pavement Pedestrian Flasher Evaluation, Cedar Rapids, Iowa
  
  
• Reuse of Lime Sludge from Water Softening in Road Construction and Other Applications
  
  
• Identification of the Best Practices for the Design, Construction, and Repair of Bridge Approach Sections (TR-481)
  
  
• Evaluation of Different Methods to Calculate Heavy-Truck VMT
  
  
• Impacts of Overweight Implements of Husbandry on Minnesota Roads and Bridges
  
  
• Improved Nitrate Removal from Drinking Water by Ion Exchange
  
  

November 30, 2004

• Safety Data Collection and Analysis Software Support for New York State Police
  
  

September 30, 2004

• Two-Lift Concrete Pavements to Meet Public Needs (Proj. 8)
  
  
• Development of New Strategies for Locating Safety Improvements Candidate Locations
  
  
• PONTIS Implementation and Operation, Phase II: Implementation
  
  
• Health Monitoring of Bridge Structures and Components Using Smart-Structure Technology
  
  
• Cost Comparison of Treatments Used to Maintain or Upgrade Aggregate Roads
  
  

August 31, 2004

• Improvement to Backwashing Procedures of Sand Filters
  
  

August 30, 2004

• Impact of Left-Turn Phasing on Older and Younger Drivers at High-Speed Signalized Intersections
  
  

June 30, 2004

• Implementation of Iowa DOT Pavement Management Optimization Model, 2004
  
  
• Review of Selected FMGP Sites for Potential Monitored Natural Attenuation Applicability
  
  

May 31, 2004

• Traffic Monitoring Program Planning with Remote Sensing
  
  
• Development of Object-Oriented Specifications for Iowa DOT and Urban Standards (TR-487)
  
  
• Planning, Implementation and Operation of the IPMP, Phase IX
  
  

May 14, 2004

• Traffic Monitoring Program Plannning with Remote Sensing, Phase II
  
  

April 30, 2004

• Steel Diaphragms in Prestressed Concrete Girder Bridges (TR-424)
  
  
• Software Enhancements for the Crash Mapping and Analysis Tool
  
  
• Evaluation of Using Non-Corrosive Deicing Materials and Corrosion Reducing Treatments for Deicing Salts (TR-471)
  
  

March 31, 2004

• Attributes of Good In-Service Concrete Pavements (Proj. 9)
  
  
• Rural Expressway Intersection Synthesis of Practice and Crash Analysis
  
  
• Smooth, Quiet, Safe Concrete Pavements: Scoping Study (Proj. 14)
  
  
• City of West Des Moines Subarea Model
  
  
• Performance Properties of Ternary Mixtures for Concrete Pavements: Scoping Study (Proj. 13)
  
  

March 3, 2004

• Development of a Method to Determine Pavement Damage Due to Detours (TR-470)
  
  

February 28, 2004

• Effectiveness of All-Red Clearance Time on Intersection Accidents and Violation Trends
  
  
• Field Evaluation of Compaction Monitoring Technology, Phase 1 (TR-495)
  
  

February 14, 2004

• Determination of the Optimum Base Characteristics for Pavements (TR-482)
  
  

January 31, 2004

• Evaluating Speed Differences between Passenger Vehicles and Heavy Trucks for Transportation-related Emissions Modeling
  
  
• Ameliorating Activated Sludge Biomass Bulking and Wastewater Septicity - Preliminary Investigation
  
  

January 15, 2004

• Portland Cement Concrete Patching Techniques vs. Performance and Traffic Delay
  
  

December 31, 2003

• Development of a Sequencing Batch Biofilm Reactor for the Treatment of Pesticide Rinsewater
  
  
• Evaluation of a Complex Coagulant Produced from Coal Combustion Byproducts in Waste Water Treatment
  
  
• Ameliorating Activated Sludge Biomass Bulking
  
  
• Hybrid Precast Buildings - Developing Design Tools and Performance Base Seismic Assessment
  
  
• Conducting Introductory Literature Searches for the Iowa Highway Research Board (TR-468)
  
  
• Monitoring and Evaluation of the Westbound Roadway of the Iowa River Bridge
  
  
• Developing an Effective Construction Training Program for Hispanic Supervisors and Craft Workers, Phase 1
  
  
• Stringless Concrete Paving (TR-490)
  
  
• Evaluation of Racial Differences in Seat Belt and Child Restraint Use: A Review of Current Literature
  
  
• MENA Research and Demonstration Site, Cherokee, IA
  
  
• Coordination of Transit and School Busing in Iowa
  
  

October 31, 2003

• Evaluation of a Post-tension Strengthened Steel Girder Bridge Using FRP Rods/Strands
  
  

September 30, 2003

• Anaerobic Bioconversion of Organic Wastes to Energy and Plant Nutrients
  
  
• Statistical Analysis of Highway Needs Condition Data: Manual vs Automated
  
  
• Properties of Blended Cements for Concrete Pavements
  
  

August 31, 2003

• Deploying the Maintenance Decision Support System (MDSS) in Iowa
  
  

August 30, 2003

• Reuse of Lime Sludges from Water Softening
  
  

August 15, 2003

• An Investigation of Business Opportunites in Mexico
  
  

August 1, 2003

• Numerical Analysis of Geosynthetic-Reinforced Rammed Aggregate Pier-Supported Embankments
  
  

July 31, 2003

• Determination of Biodegradation Rates for Ethanol Production Wastewater
  
  
• Application of Advanced Remote Sensing Technology to Asset Management
  
  
• Design of Jointed Precast Building Systems for High Seismic Zones, Phase I
  
  

July 15, 2003

• Application of Biological Aerated Filters to Meet NPDES Ammonia Limits for Small Communities
  
  

June 30, 2003

• Demonstration and Field Evaluation of Alternative Portland Cement Concrete Pavement Reinforcement Materials (HR-1069)
  
  
• Highway Maintenance Concept Vehicle: A Business Case for Winter Maintenance Technology Applications
  
  
• Anaerobic Treatment of Packing Plant Wastewater: A comparison study of the Anaerobic Sequencing Batch Reactor and the Static Granular Bed Reactor
  
  

May 31, 2003

• Planning, Implementation and Operation of the IPMP, Phase VIII
  
  

April 30, 2003

• Implementation of Iowa DOT Pavement Management Optimization Model, 2002
  
  

March 30, 2003

• NCHRP Report 527: Integral Steel Box-Beam Pier Caps
  
  

January 31, 2003

• Thin Maintenance Surfaces, Phase 2 with Guidelines for Winter Maintenance on Thin Maintenance Surfaces (TR-435)
  
  

January 15, 2003

• Targeted Collaborative Research on Upset Early Warning Systems Phase I.
  
  

January 1, 2003

• Angle Parking on Iowa's Low Volume Primary Extensions in Small Towns
  
  

December 31, 2002

• Optimized Groundwater Monitoring for MENA and Site Closure
  
  
• Preparation of Ferrate, a Multifunctional Water and Wastewater Treatment
  
  
• Urban Air Pollution Control in China
  
  
• Iowa DOT Internet-Based Road Work Report
  
  
• Road Equipment Procurement and Utilization Study
  
  
• 3R Safety Course and Handbook
  
  
• Improving Efficiency of Transportation Projects Using Laser Scanning
  
  
• Pedestrian Crossing Safety Technology Assessment
  
  

December 14, 2002

• Temporary Speed Hump Impact Evaluation
  
  

October 31, 2002

• Improving Activated Sludge Treatment of Pasta Wastewater
  
  
• Vendor Weather Forecast
  
  

October 30, 2002

• Integration of Existing and Identification of Future Data Sources for Improved Intersection Safety Analysis
  
  

September 30, 2002

• Biohydrogen Production from Renewable Organic Waste Streams
  
  
• Improved Pavement Curing Materials and Techniques: Part 1 (Phases I and II) (TR-451)
  
  
• Development of an Advanced Traveler Information: Weatherview, Phase II: Enhancements; Phase III: Support
  
  
• GIS-ALAS TraCS Conversion Software
  
  
• Improved Pavement Curing Materials and Techniques: Part 2 (Phase III) (TR-479)
  
  

September 1, 2002

• Constitutive modeling parameters of compacted aggregates
  
  

August 31, 2002

• Traffic Control Strategies in Work Zones with Edge Drop-Offs
  
  
• Retrofit Methods of Distortion Cracking Problems in Plate Girder Bridges (TR-436)
  
  
• Development of Bridge Load Testing for Load Evaluation (TR-445)
  
  

August 15, 2002

• Synthesis of Dowel Bar Research (HR-1080)
  
  

July 31, 2002

• Iowa DOT Linear Referencing System: Preliminary Linear Data Creation
  
  

June 30, 2002

• Evaluation of Rammed Aggregate Piers for Highway Applications in Iowa Soils (TR-443)
  
  
• Planning, Implementation and Operation of the IPMP, Phase VII
  
  
• Implementation of Iowa DOT Pavement Management Optimization Model, 2001
  
  
• Evaluation of Composite Pavement Unbonded Overlays, Phases I and II (TR-478, Proj. 2)
  
  
• In Situ Detection Methods for Materials-Related Distress in Concrete Pavements, Phase I (Proj. 1)
  
  

June 1, 2002

• Nitrifying Trickling Filter Study
  
  

May 31, 2002

• Highway Maintenance Concept Vehicle, Phase IV
  
  
• Technology Transfer of As-Built and Preliminary Surveys by Total Station GPS, Video Logging, and Laser Scanning (TR-446)
  
  
• Iowa Flagger Handbook and Training Video
  
  

May 20, 2002

• Evaluation of the Iowa DOT's Safety Improvement Candidate List Process
  
  

May 15, 2002

• Comparison of LIDAR and Photogrammetry for Highway Planning and Design
  
  

May 14, 2002

• Comparison of LIDAR and Conventional Mapping Methods for Highway Corridor Studies
  
  

March 31, 2002

• Development of a Multifunctional Flue Gas Cleaning System
  
  
• Embankment Quality, Phase 3 (TR-401)
  
  
• Handbook of Simplified Practice for Traffic Studies (TR-455)
  
  
• Process to Identify High Priority Corridors for Access Management Near Large Urban Areas in Iowa
  
  

December 31, 2001

• Swine Waste Treatment Using On-Farm, Full-Scale Anaerobic Batch Reactors
  
  
• PONTIS Implementation and Operation: Iowa DOT and Counties
  
  
• Low Water Stream Crossings in Iowa (TR-453)
  
  
• Development of a Winter Road Conditions Reporting System
  
  

October 1, 2001

• Dowel Bar Optimization, Phases I and II
  
  

September 30, 2001

• Emergency Response Information System (ERIS)
  
  

June 30, 2001

• Remote Sensing to Support Linear Referencing Systems
  
  
• Geographic Information System-Based Accident Location and Analysis System (GIS-ALAS)
  
  
• Access Management Research and Awareness Program Phase IV
  
  
• Systematic Identification of High Crash Locations (TR-442)
  
  
• GPS to LRM: Integration of Spatial Point Features with Linear Referencing Methods
  
  
• Use of Remotely Sensed Data for Infrastructure Management, Access Management, and Inventory
  
  
• Origin Destination Model Estimation for I-235 Traffic Simulation Study
  
  
• Paved Shoulders on Primary Highways in Iowa: An Analysis of Shoulder Surfacing Criteria, Costs, and Benefits
  
  

June 20, 2001

• Use of Remote Sensing to Identify Access Elements for Safety Analysis (Remote Sensing in Transportation Yr 1, Project 2)
  
  

April 30, 2001

• Implementation of Iowa DOT Pavement Management Optimization Model, 2000
  
  
• Evaluation of Biofilm Growth in Water Dispenser System
  
  

March 16, 2001

• Construction, Operation, Maintenance and Research Evaluation of the Demonstration Anaerobic Sequencing Batch Reactor System to be Located at the Steve and Audrey Crawford Farm
  
  

January 31, 2001

• Waste Characterization and Methane Potential of Dairy Wastes
  
  

December 31, 2000

• Metro Park East Sanitary Landfill Water Quality Monitoring and Evaluation
  
  
• Planning, Implementation, and Operation of the IPMP, Phase VI: Proposal to develop the Implementation and Operation of the IPMP
  
  
• Field Validation of Biokinetic Coefficients for Predicting Degradation of Organic Compounds
  
  

November 30, 2000

• Determine Initial Cause for Current Premature PCC Pavement Deterioration (TR-406)
  
  
• Development of Materials Training Course for Technicians (TR-416)
  
  

October 31, 2000

• HWYNEEDS: Methodology, Analysis and Evaluation (TR-433)
  
  
• Analysis of Test Data from the Press Five-Story Precast Concrete Building
  
  

September 30, 2000

• Crash Outcome Data Evaluation System (CODES): An Evaluation of Medical Crash Costs
  
  
• Impact of Deck Cracking, Phase II (TR-405)
  
  

August 31, 2000

• Performance on Strip Seals in Iowa Bridges
  
  
• Development of a Comprehensive Access Management Plan and Training Program for Missouri
  
  
• A Laboratory Investigation into the Effects of Aggregate-Related Factors of Critical VMA in Asphalt Paving Mixtures (TR-415)
  
  

July 31, 2000

• Austin, Minnesota Wastewater Treatment Facility - Industrial Section Research Study
  
  
• Effects of Household Chemical Products on Septic Tank Systems
  
  

June 30, 2000

• Weigh-in-Motion Project and Handbook
  
  
• GIS/TRANPLAN Enhancement Project
  
  

May 31, 2000

• Ethanol-Enhanced Bioremediation of Coal Tar-Contaminated Soil
  
  
• Local Agency Pavement Management System
  
  

April 30, 2000

• Valuable By-Products Recovery from Livestock Wastes Using Temperature-Phased Anaerobic Digestion Process
  
  

February 29, 2000

• Evaluation of Work Zone Speed Reduction Measures
  
  

January 31, 2000

• Embankment Quality, Phase 2 (TR-401)
  
  

December 31, 1999

• Implementation of GIS at the Iowa Department of Transportation
  
  
• Implementation of Iowa DOT Pavement Management Optimization Model, 1999
  
  
• Planning, Implementation, and Operation of the Iowa DOT Pavement Management Program, Phase V: Proposal to Develop the Implementation and Operation of the IPMP
  
  
• Commercial Vehicle Parking
  
  
• Response of Iowa Pavements to Heavy Agricultural Loads (HR-1075)
  
  
• Integrated Intelligent Transportation Systems and Services Deployment Plan
  
  
• The Development of a GIS-Based Crash Location Tool, Phase II
  
  

December 30, 1999

• Development of a GIS-based Crash location tool: Intelligent Crash Location Tool, Phase III
  
  

December 1, 1999

• GIS Support for the Iowa Department of Transportation (1999)
  
  

November 1, 1999

• Prepare a Project Plan for Joplin East Bound Weigh Station Electronic Screening Prototype and Prototype Test,Task Order 7
  
  

October 31, 1999

• Research Support for the Missouri Legislative Forum on Transportation
  
  

October 1, 1999

• Missouri Legislative Forum Transportation Issues Report
  
  

September 30, 1999

• Stormwater Reuse
  
  

September 1, 1999

• Work Zone Simulation Model
  
  

August 1, 1999

• Electronic Reference Library, Phase 1
  
  

July 1, 1999

• Traffic Management Strategies for Merge Areas in Rural Interstate Work Zones
  
  

February 28, 1999

• Thin Maintenance Surfaces (Amendment 14)
  
  

December 31, 1998

• Development of Training Materials for Federal Data Workbooks
  
  
• Geographic Information System (GIS) Database Development, Integration, and Maintenance for the Iowa Department of Transportation Maintenance Division
  
  
• Planning, Implementation, and Operation of a Statewide Pavement Management System, Phase IV
  
  

December 1, 1998

• GIS 1996-1998
  
  
• Statewide Transportation Planning Model and Methodology Development Program
  
  
• Coordination of Data Elements to support ISTEA Management Systems, Phase II, Statewide Implementation
  
  

October 31, 1998

• Feasibility of Using Automated Distress Data in the County Need Study (TR-418)
  
  
• Simulation and Analysis of Arterial Traffic Operations Along the US 61 Corridor in Burlington, Iowa
  
  
• Commercial Concepts for New Interstate Rest Areas,Task Order 6
  
  

October 1, 1998

• Iowa Infrastructure Management Information System Pilot Project
  
  

August 31, 1998

• GIS Traffic Planning Tools
  
  

July 31, 1998

• Traffic Management Strategies for Merge Areas in Construction Detours (Addendum 12)
  
  

June 30, 1998

• Improved Employment Data For Transportation Planning
  
  
• Highway Maintenance Concept Vehicle, Phase I
  
  
• Upper Mississippi River/Illinois Waterway Navigation Study
  
  

June 1, 1998

• Preventing Cracking at Diaphragm/Plate Girder Connections in Steel Bridges (TR-393)
  
  

May 31, 1998

• Midwest Multi-state One-Stop Electronic Purchase of Motor Carrier Credentials
  
  
• Access Management Awareness Program: Phase III
  
  

April 30, 1998

• Embankment Quality, Phase 1 (TR-401)
  
  
• Regional Champion for the Midwest Region Mainstreaming Program (Task Order 3)
  
  

April 15, 1998

• Comprehensive Quality Incentive Program for Portland Cement Concrete Paving (TR-403)
  
  

April 14, 1998

• Impact of Deck Cracking on Durability, Phase I (TR-405)
  
  

March 31, 1998

• Evaluation of Information Technology to Support Distance Sharing and Learning
  
  

December 31, 1997

• Access Management Awareness Program Work Plan for Phase II (Amendment 1) (TR-402)
  
  
• Development of GIS Accident Location and Analysis Systems (GIS-ALAS), Phase I
  
  

September 30, 1997

• Des Moines ITS Early Deployment
  
  

September 1, 1997

• A Study on Speed Humps
  
  

July 31, 1997

• Iowa Access Management Awareness
  
  

June 30, 1997

• Intersection Collision Diagram Software
  
  

June 1, 1997

• Coordination of Data Elements from the ISTEA Management Systems: Phase I
  
  

May 31, 1997

• National Governors' Association Study of Public Sector Costs and Benefits of ITS/CVO
  
  

February 28, 1997

• Support for High Accuracy Referencing Network
  
  

December 1, 1996

• GIS Technology Transfer of Transportation Modeling Environment to Local Agencies, Priority Technology Program of the FHWA
  
  

October 31, 1996

• Performance-Based Standards for Potential Size and Weight Regulation in the United States
  
  

September 30, 1996

• Interstate Cooperation for Implementation of ITS/CVO Functions: Institutional Opportunities and Barriers
  
  

July 31, 1996

• Development of a Systems Architecture for Nationwide IVHS, Phase II
  
  

June 30, 1996

• Development of Applications for Interactive Transportation Planning GIS
  
  
• On-Board Automated Mileage and Stateline Crossing System for Apportioning Commerical Vehicle Fuel Taxes and Mileage and Automatic Submission to IFTA and IRP Base Jurisdiction
  
  

May 31, 1996

• Congestion Management System Development Support (an ISTEA management task)
  
  
• Intermodal System Support Scope of Work and Tasks (an ISTEA management task)
  
  
• Intercity Bus Terminal Study for the Des Moines International Airport
  
  

April 30, 1996

• Review and Update Accident Loss Reduction Factors
  
  

June 1, 1995

• Intelligent Transportation Systems (ITS) and Commercial Vehicle Operations (CVO). Interstate Cooperation for Implementation of ITS-CVO Functions; Institutional Opportunities and Barriers
  
  

November 30, 1994

• Transportation Project Development Process Management System; and Amendment, "Analysis of Contractor Submitted CPM Schedules.
  
  

November 1, 1994

• Policy Issues of an Iowa Longer Combination Vehicle Network
  
  

September 30, 1994

• High-Speed Computing to Facilitate Real Time Analysis of Transportation Planning Alternatives
  
  
• Field Data Acquisition Technologies for Iowa Transportation Agencies (HR-366)
  
  

January 31, 1994

• Impacts on Safety of Left-Turn Treatment at High Speed Signalized Intersections (HR-347)
  
  

December 31, 1993

• A GIS-Based Travel Demand Modeling System for Supercomputing
  
  

December 31, 1992

• Needs Assessment: Traffic Data Storage, Processing, and Dissemination
  
  

August 1, 1992

• Economic Regulation of Intrastate Trucking: An In-Depth Examination of Iowa, Kansas, Missouri, and Nebraska
  
  

June 1, 1992

• Public Sector Participation in Local Rail Service Projects with an Economic Development focus
  
  

February 1, 1992

• Institutional Barriers and Opportunities for IVHS in Commercial Vehicle Operations: An Iowa Case Study
  
  

August 1, 1991

• Essential Parameters for an Iowa Bridge Management System
  
  

November 1, 1990

• Changing Role of Freight Transportation Modes and Intermodal Freight
  
  

December ,

• Midwest ITS/CVO Mainstreaming
  
  
• Statewide, Non-NHS Federal Aid Eligible System, Pavement Management Program, Phases I-III