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Posted: Mar 26 This research will document the early performance of selected asphalt pavements in the state of Utah and correlate their performance to the Flexibility Index (FI) values obtained in the lab.Posted: Mar 25 The Utah Department of Transportation (UDOT) has implemented a Variable Speed Limit (VSL) zone on a section of I-80 using regulatory hybrid Changeable Message Signs (CMSs). By collecting historical crash locations in the VSL zones, our research team will further discuss how the new CMS can help to prevent crashes in various geometric design scenarios.Posted: Mar 18 Researchers at North Dakota State University's Upper Great Plains Transportation Institute developed a new modeling approach to more accurately predict the likelihood of accidents at highway-rail grade crossings, locations where a highway and railroad cross at the same elevation. The approach performs well with far fewer false positive estimates compared to decision tree model and can help agencies allocate safety resources to where they can do the most good.Posted: Mar 17 The objective of this project is to investigate alternative methods for constructing bridge columns in high seismic regions using longitudinal Glass Fiber Reinforced Polymer (GFRP) bars and GFRP spirals; in addition, self-centering in terms of Carbon Fiber Reinforced Polymer (CFRP) post-tensioning of bridge columns and damage-resistant end joints as rocking devices will be utilized.
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