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Research Reports
Filter by Keyword135 report(s) found with roads in the keywords field Over the last two decades, the use of advanced scientific and data-driven statistical methods has been continuously evolving to reduce the frequency and severity of crashes on our roadways. The American Association of State Highway and Transportation Officials (AASHTO) Highway Safety Manual (HSM) was... Roadside barriers are the primary structural safety devices on surface roads. They can be made from any material as long as they can absorb the energy involved in an impact scenario. One material that has that potential is Ipe, which is a hardwood material that has relatively high strength compared with... 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... Due to the recent oil boom, the Fort Berthold Reservation has experienced a dramatic increase in highway and local traffic. To support energy transportation and provide safe roads, the reservation needs cost-efficient and effective transportation planning for present and future needs. A quality road... Alan Dybing, Pan Lu, Dale Heglund, Tim Horner, Michal Jaroszynski, Tom Jirik, Bradley Wentz, Andrew Wrucke, Luke Holt, Christopher DeHaan, Yong Shin Park, Poyraz Kayabas, Yuan Xu, Osama Khan, Fangzheng Yuan, Ali Rahim Taleqani, Zijian Zheng, and Chijioke Ifepe This report the response to the North Dakota Legislature's request for a study of the transportation infrastructure needs of all county and township roads in the state. In this report, infrastructure needs are estimated using the most current production forecasts, traffic estimates, and roadway inventory... This paper outlines historical circumstances, changes to labor law and negotiations between unions and railroads that have led to reductions in train crews. The author suggests that, in the wake of a fatal Amtrak derailment in Philadelphia, Amtrak and commuter passenger authorities should err on the... For more than a decade, the Bureau of Labor Statistics has cited "railroad operations" as one of the best-paying careers for high school graduates. The author suggests economic circumstances that have kept railroads profitable and a legal environment that favors predictability and limits conflict with... Andrew Bratlien, Alan Dybing, Luke Holt, Tim Horner, Yasaman Kazemi, EunSu Lee, Pan Lu, Jon Mielke, Denver Tolliver, Brad Wentz, Vu Dang, Christopher DeHaan, Nimish Dharmadhikari, Chijioke Ifepe, Yong Shin Park, Fangzheng Yuan, and Zijian Zheng This report responds to the North Dakota legislature's request for a study of the transportation infrastructure needs of all county and township roads in the state. In this report, infrastructure needs are estimated using the most current production forecasts, traffic estimates, and roadway condition... Converse, Goshen, Laramie, and Platte counties were selected in accordance with a legislative directive as part of a project to determine the impact of the oil and gas industry on county infrastructure. This thesis takes into account the impact of county gravel roads and strategies used to help develop... This document presents the application of the Highway Safety Manual (HSM) for rural local two-lane two-way highway segments in South Dakota. The calibration was based on three-year (2009-2011) crash data from 657 roadway segments constituting more than 750 miles of roadways. The calibration process includes... |
