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All Publications about Design

Quality Control/Quality Assurance Testing for Joint Density and Segregation of Asphalt Mixtures
May 22, 2013
The Institute for Transportation at Iowa State University has released a report that evaluates the level of compaction at the longitudinal joint to determine the effects of segregation on joint performance.

Recommendations for Yield-to-Bus Traffic Control Devices and Bus Pullout Bays Design Characteristics
May 22, 2013
The Florida Department of Transportation has released a report that discusses critical design features and conditions affecting the safety of buses’ merging maneuvers and traffic control devices around bus pullout bays.

Evaluation of the Smart Cushion Innovations 100GM Crash Attenuator
May 13, 2013
The Montana State Department of Transportation has released a report that documents the installation process and site visits for recording the physical condition of bi-directional crash attenuators which have a reverse-tapered design.

Structural Performance of Texas U-Beams at Prestress Transfer and Under Shear Critical Loads
May 13, 2013
The Center for Transportation Research at the University of Texas-Austin has released a report that evaluates Texas U-Beams including measurements of their concrete curing temperatures in square and skewed end blocks and establishment of the vertical shear capacity of their standard section loads.

Evaluating Standards and Practices for Facilitating Visually Impaired People’s Mobility in the Built Environment
May 2, 2013
The Institute of Transport Economics in the Norwegian Centre for Transport Research has released a report that reviews wayfinding and makes recommendations for its improvement in transport systems, with an emphasis on inclusive design and tactile paving.

Daytime Color Appearance of Retroreflective Traffic Control Sign MaterialsDaytime Color Appearance of Retroreflective Traffic Control Sign Materials
May 2, 2013
The U.S. Federal Highway Administration has released a report that describes processes used to determine physical measurements of the chromaticity and luminance of retroreflective sign materials.

Developing Safety Performance Measures for Roundabout Applications in the State of Oregon
April 29, 2013
The Oregon State Department of Transportation has released a report that documents efforts to quantify the safety performance functions of roundabouts in order to evaluate the safety performance of single-lane, four-leg roundabouts.

End Region Detailing of Pretensioned Concrete Bridge Girders
April 29, 2013
The Florida Department of Transportation has released a report that discusses research programs that evaluate and quantify the effects of serviceability, behavior, and capacity of pretensioned concrete girders in different end region detailing schemes.

Performance Analysis of Centerline and Shoulder Rumble Strips Installed in Combination in Washington State
April 24, 2013
The Washington State Department of Transportation has released a report that examines the combined effects of centerline and shoulder rumble strips and compares installation scenarios with shoulder and centerline rumble strip installation.

Comprehensive Highway Corridor Planning with Sustainability Indicators
April 22, 2013
The Maryland State Highway Administration has released a report that defines sustainability indicators for major geometric improvement options and proposes additional multimodal corridor improvement options.