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Research Reports
View AllThe American population continues to mature with an impending "aging tsunami" just a few years away. It is projected that by 2050, the number of Americans 65 years old or older will increase to more than 83 million, nearly double its current population of 43 million (U.S. Census 2014). Public transportation... The statewide driver traffic safety survey provides baseline metrics for the North Dakota Department of Transportation Safety Division and others to use in understanding perceptions and self-reported behaviors related to focus issues. A core set of questions addresses nationally agreed upon priorities... Redundancy is vital for transportation networks to provide utility to users during disastrous events. In this project, we develop two network-based measures for systematically characterizing the redundancy of transportation networks: travel alternative diversity and network spare capacity. The travel... This study investigates the effectiveness of the Great Rides Bike Share program that was launched in 2015 in the small urban area of Fargo, North Dakota. Eleven bike share stations were installed in Fargo with 101 bikes. Stations were primarily concentrated on the North Dakota State University (NDSU)... This report presents a two-phase research program studying i) galvanic current influencing deterioration of carbon fiber reinforced polymer (CFRP) sheets bonded to a steel substrate and ii) electrochemical reaction for steel beams strengthened with CFRP. The first phase of the research presents an experimental... Transportation systems generate certain health-promoting benefits such as access to social, economic, and cultural resources, but they also are a source of air pollution, noise, safety hazards, and barriers that diminish social cohesion in neighborhoods. Streets, in particular, are among the most important... Previous field studies suggested that macro-fibers incorporated in thin overlay pavements will result in reduced crack opening widths, vertical deflections, and debonding rates compared to that of unreinforced overlays. A simple finite element (FE) model was developed and utilized in this study to investigate... Connections between precast concrete elements must be able to withstand significant stresses and deformations in earthquakes. The grouted splice sleeve (GSS) connector is being considered for connecting footing, column, and cap beam elements in accelerated bridge construction (ABC). There are limited... With over 90,000 miles of roadway classified as local roadways (county and township) in the state of North Dakota, local road quality has a large impact on commodity movement, safety, and the quality of life for its residents and visitors. Local road managers have long faced the difficulties of properly... A study was conducted to investigate why people talk on a cell phone while driving and why they also support legislation to restrict this practice. Participants completed a survey about their driving attitudes, abilities, and behaviors, and performed the OSPAN task. They reported using cell phones for... |
