Program: The 15th International Conference on Gambling & Risk Taking

Listing of presentations, events, and sponsor

Structural Coefficient for High Polymer Modified Asphalt Mixes [Summary]

BE321University of Nevada, Reno (UNR), researchers determined the structural coefficient for asphalt concrete mixes manufactured with a high polymer (HP) modified asphalt binder that contains approximately 7.5% Styrene-Butadiene-Styrene (SBS) polymer

Southern Great Basin seismic network operations

Subtasks 1. Record and archive data from the permanent seismic network. 2. Process seismic data into a preliminary earthquake bulletin. 3. Maintain the seismic stations, the strong-motion stations, the telemetry network, and the computing lab. 4. Prepare and submit a seismicity report on a yearly basis 5. Maintain and collect data from 3 north-portal boreholes. 6. Report on borehole accelerometers. 7. Estimate Kappa at network stations. 8. Implement a recording system at borehole UZ16. 9. Prepare and submit high-quality papers to peer-reviewed journals on seismic data and interpretations in the YM region. 10. Perform a multi-year telemetry and station upgrade

New Signal Timing Tool Helps Engineers Save User Costs and the Environment

In a case study conducted in October 2014 for the California Department of Transportation, Tian and his students helped retime a 1.7-mile segment of a signalized arterial using SMRT. The study revealed that the overall travel time savings per day is about 560 hours; fuel savings per day is about 600 gallons; the total annual savings in delay and fuel is then about $3.2 million; the average annual savings per traveler is about$170. This yields a benefit-cost ratio of about 130:1. Additionally, there is an estimated annual reduction of about 22 tons of emissions, including carbon monoxide, nitrogen oxides and volatile organic compounds, due to the improved signal coordination

SOLARIS Breaks New Ground in Tech Transfer with TranSync Tool

The University of Nevada, Reno\u2019s SOLARIS (Safety and Operations of Large-Area Rural/Urban Intermodal Systems) center has jointly developed the TranSync tool, in collaboration with Trans-Intelligence LLC. Built on an idea similar to the earlier SMRT (Signal Timing Management and Re-timing Tool), TranSync has evolved into a complete suite for traffic signal timing management, optimization, diagnosis, and evaluation that is expected to significantly improve arterial traffic flows and reduce urban congestion

Testing and Analysis of the Effects of Contamination of Friction Pendulum Bearings

HFHWY00181 FHWA 4000(197)Field contamination of friction pendulum system (FPS) isolation bearings (water, ice, dirt and other debris) has been observed in several Alaskan bridges during routine bridge inspections. Characterization testing was performed on four FPS bearings in clean/dry conditions as well as wet, frozen and soil-filled. Three of the four were double pendulum bearings (DPBs); two of these formerly in-service abutment bearings from the Susitna River Bridge and one new matching Susitna DPB. The fourth was a new single pendulum bearing (SPB) representing the Robertson River Bridge abutment bearing. The experimental configuration utilized could not constrain the bearing top plate against rotation, so dynamic behavior was influenced by bearing rotation. Evidence was presented to support the hypothesis that water/ice and bearing top plate rotation cause dynamic variation of the bearing friction, which can manifest as a change in the bearing post-yield stiffness. In addition, these same effects can constrain multi-pendulum bearings to slide unevenly on top and bottom surfaces, or constrain the bearing from sliding on one surface altogether, which effectively doubles the post-yield stiffness. Analysis of the Susitna River Bridge under several different contamination scenarios showed that peak bearing displacement and forces can be substantially affected by contamination, but the pier column forces to a lesser extent. Changes are proposed to some of the property modification factors used in bounding analysis procedures as part of the bearing design process

Performance of Transportation Infrastructure During Kumamoto Earthquakes of April 14 and 16, 2016\u2014 A Reconnaissance Report

DTFH61-07-00031This report described a reconnaissance effort to document bridge performance during the Kumamoto earthquakes in Japan in April 2016. More than 180 bridges were damaged by these earthquakes. Of particular interest is the performance of bridges that were relatively new (15\u201320 yr old) or recently retrofitted. Damage sustained was significant and included bearing and shear key failures, distortion and local buckling of the steel superstructures, and foundation movement. Most of the damage could be attributed to extensive slope failures and intense shaking close to the causative fault. Recommendations for improving bridge performance in future earthquakes are given

Governor Sawyer Proclaiming Negro History Week

https://scholars.law.unlv.edu/createdequalgallery/1005/thumbnail.jp