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CTRE  en route

Summer 2008

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CTRE en route is published twice a year to inform readers about CTRE's projects and programs.

Recently completed research

Below is a list of projects that were completed since summer of 2007. All links will take you out of this newsletter site. Each project page includes a link to the final report.

Bridges

• Investigation of Steel Stringer Bridges: Substructures and Superstructures (TR-522)
• Field Evaluation of Timber Preservation Treatments for Iowa Highway Applications (IHRB-05-10)

Concrete

• Development of Performance Properties of Ternary Mixes, Phase 1
• Concrete Pavement Surface Characteristics (Proj. 15, Part 2)

Design

• 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

Geotech

• Embankment Quality, Phase 4: Application to Unsuitable Soils (TR-492)

Safety

• Updated Rule on Safety and Mobility
• Evaluation of Iowa’s Graduated Driver’s Licensing Program

Training

• Developing an Effective Construction Training Program for Hispanic Supervisors and Craft Workers, Phase 4

Traffic

• Appropriate Traffic Calming Techniques for Small Iowa Communities (TR-523)
• The Effectiveness of Iowa's Automated Red Light Running Enforcement Programs (RLR, Phase 2)
• Temporary Traffic Control and Enforcement of Traffic Laws in Closed Road Sections
• Asset Management Strategies to Mitigate Freeway Work Zone Congestion

Winter Weather

• Performance Measures for Snow and Ice Control Operations