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Articles 1 - 17 of 17
Full-Text Articles in Engineering
Evaluation Of The Environmental Impacts Of Bridge Deck Runoff, Shannon L. Bartelt-Hunt, Lauren Swadener, Ekizabeth G. Jones
Evaluation Of The Environmental Impacts Of Bridge Deck Runoff, Shannon L. Bartelt-Hunt, Lauren Swadener, Ekizabeth G. Jones
Nebraska Department of Transportation: Research Reports
Bridges are located in very close proximity to receiving waters, and regulatory agencies often require specific stormwater control measures for bridge deck runoff. While there is some information available on roadway runoff, few studies have focused on bridge deck runoff. Currently, there is no information available regarding the impacts of bridge deck runoff on receiving waters in Nebraska. Due to the cost, maintenance, and design issues associated with implementing structural controls for bridge deck runoff, it is important to develop a better understanding of the relationship between bridge deck runoff and potential impacts to receiving streams. The objectives of this …
Characteristics Of Fatigued Commercial Motor Vehicle Drivers -- A Preliminary Investigation, Aemal Khattak, Carrie Mohlman
Characteristics Of Fatigued Commercial Motor Vehicle Drivers -- A Preliminary Investigation, Aemal Khattak, Carrie Mohlman
Nebraska Department of Transportation: Research Reports
The goal of this research was to identify and correlate easily observable characteristics of drivers to different levels of fatigue, thus enabling state patrol officers to make more judicious decisions related to driver fatigue. A literature review was conducted pertaining to the characteristics of fatigued drivers. Next, a nationwide survey was administered to state patrol agencies to assess their practices regarding fatigue-involved driving. To explore relationships between state patrol agency practices and vehicular safety, data collected from the telephone survey were merged with data from different states on fatigue-involved vehicle fatalities and vehicle miles traveled. Analysis revealed that states with …
Cable Median Barrier Failure Analysis And Prevention, Dean L. Sicking, Cody S. Stolle
Cable Median Barrier Failure Analysis And Prevention, Dean L. Sicking, Cody S. Stolle
Nebraska Department of Transportation: Research Reports
Cross-median crashes have been identified as one of the highest injury or fatality risk crash types. Although crossmedian crashes account for only 2% to 5% of all median crash events, they are disproportionately represented in the number and frequency of fatalities on interstate roadways. Many states have utilized cable median barriers to reduce the risk of cross-median crashes, frequently with great success. However, cable median barriers are also fixed obstacles to errant vehicles. Cable median barriers can place occupants at increased risk of severe injury or fatality if the barrier fails to adequately contain and redirect errant vehicles, resulting in …
Dynamic Testing Of Mgs W6x8.5 Posts At Decreased Embedment, Robert W. Bielenberg, Karla A. Lechtenberg, Ronald K. Faller, John D. Reid, Tyler L. Schmidt, Mario Mongiardini
Dynamic Testing Of Mgs W6x8.5 Posts At Decreased Embedment, Robert W. Bielenberg, Karla A. Lechtenberg, Ronald K. Faller, John D. Reid, Tyler L. Schmidt, Mario Mongiardini
Nebraska Department of Transportation: Research Reports
No abstract provided.
Determination Of The Maximum Mgs Mounting Height Phase Ii Detailed Analysis, Ramen D. Julin, Ronald K. Faller, John D. Reid, Mario Mongiardini
Determination Of The Maximum Mgs Mounting Height Phase Ii Detailed Analysis, Ramen D. Julin, Ronald K. Faller, John D. Reid, Mario Mongiardini
Nebraska Department of Transportation: Research Reports
No abstract provided.
Evaluation Of A Non-Proprietary, High-Tension, Four-Cable Median Barrier On Level Terrain, Karla A. Lechtenberg, Robert W. Bielenberg, Ronald K. Faller, Dean L. Sicking, Scott K. Rosenbaugh, Daniel M. Homan, Leah R. Kampschnieder, John D. Reid
Evaluation Of A Non-Proprietary, High-Tension, Four-Cable Median Barrier On Level Terrain, Karla A. Lechtenberg, Robert W. Bielenberg, Ronald K. Faller, Dean L. Sicking, Scott K. Rosenbaugh, Daniel M. Homan, Leah R. Kampschnieder, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Cost-Effective Safety Treatments For Low-Volume Roads, Kevin D Schrum, Karla A. Lechtenberg, Cody S. Stolle, Ronald K. Faller, Dean L. Sicking
Cost-Effective Safety Treatments For Low-Volume Roads, Kevin D Schrum, Karla A. Lechtenberg, Cody S. Stolle, Ronald K. Faller, Dean L. Sicking
Nebraska Department of Transportation: Research Reports
No abstract provided.
Test Matrices For Evaluating Cable Median Barriers Placed In V-Ditches, Ronald K. Faller, Scott K. Rosenbaugh, Mario Mongiardini, John D. Reid
Test Matrices For Evaluating Cable Median Barriers Placed In V-Ditches, Ronald K. Faller, Scott K. Rosenbaugh, Mario Mongiardini, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Development And Recommendation For A Non-Proprietary, High-Tension, Cable End Terminal System, Ryan J. Terpsma, Ronald K. Faller, Dean L. Sicking, John D. Reid
Development And Recommendation For A Non-Proprietary, High-Tension, Cable End Terminal System, Ryan J. Terpsma, Ronald K. Faller, Dean L. Sicking, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Safety Improvements At Highway-Railroad Crossing For Pedestrians And Bicyclists And The Assessment Of Long-Term Effects Of Centerline Curbing, Aemal Khattak, Zheng Luo
Safety Improvements At Highway-Railroad Crossing For Pedestrians And Bicyclists And The Assessment Of Long-Term Effects Of Centerline Curbing, Aemal Khattak, Zheng Luo
Nebraska Department of Transportation: Research Reports
No abstract provided.
Research On Roadway Performance And Distress At Low Temperature, Yong-Rak Kim, Soohyok Im, Hoki Ban
Research On Roadway Performance And Distress At Low Temperature, Yong-Rak Kim, Soohyok Im, Hoki Ban
Nebraska Department of Transportation: Research Reports
This research project investigated the performance and damage characteristics of Nebraska roadways at low-temperature conditions. To meet the research objective, laboratory tests were incorporated with mechanistic numerical modeling. The three most common pavement structures in Nebraska were selected and modeled considering local environmental conditions and pavement materials with and without truck loading. Cracking of asphalt overlay was predicted and analyzed by conducting finite element simulations incorporated with cohesive zone fracture. Parametric analyses were also conducted by varying pavement geometries and material properties, which could lead to helping pavement designers understand the mechanical sensitivity of design variables on the overall responses …
Improved Models Of Cable-To-Post Attachments For High-Tension Cable Barriers, Robert W. Bielenberg, Cody S. Stolle, John D. Reid
Improved Models Of Cable-To-Post Attachments For High-Tension Cable Barriers, Robert W. Bielenberg, Cody S. Stolle, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Improved Models Of Cable-To-Post Attachments For High-Tension Cable Barriers, Robert W. Bielenberg, Cody S. Stolle, John D. Reid
Improved Models Of Cable-To-Post Attachments For High-Tension Cable Barriers, Robert W. Bielenberg, Cody S. Stolle, John D. Reid
Nebraska Department of Transportation: Research Reports
Computer simulation models were developed to analyze and evaluate a new cable-to-post attachment for high-tension cable barriers. The models replicated the performance of a keyway bolt currently used in the design of a high-tension cable median barrier being developed at the Midwest Roadside Safety Facility. Component tests of the keyway bolts were simulated and compared to the component test results. Accurate friction, fracture strain, and stress-strain material properties were determined for a solid element model of the keyway bolt by applying actual load curve measured from the test to a simulated pull cable. By simulating the material properties of the …
Speed Limit Recommendation In Vicinity Of Signalized High-Speed Intersection, Anuj Sharma, Laurence Rilett, Zifeng Wu, Shefang Wang
Speed Limit Recommendation In Vicinity Of Signalized High-Speed Intersection, Anuj Sharma, Laurence Rilett, Zifeng Wu, Shefang Wang
Nebraska Department of Transportation: Research Reports
No abstract provided.
Determination Of The Maximum Mgs Mounting Height -- Phase I Crash Testing, Cale J. Stolle, Karla A. Lechtenberg, Ronald K. Faller, Robert W. Bielenberg, Scott Rosenbaugh, Dean L. Sicking, John D. Reid, Erin A. Johnson
Determination Of The Maximum Mgs Mounting Height -- Phase I Crash Testing, Cale J. Stolle, Karla A. Lechtenberg, Ronald K. Faller, Robert W. Bielenberg, Scott Rosenbaugh, Dean L. Sicking, John D. Reid, Erin A. Johnson
Nebraska Department of Transportation: Research Reports
No abstract provided.
Phase Ii Development Of A Non-Proprietary, Four-Cable, High Tension Median Barrier, Jennifer D. Schmidt, Dean L. Sicking, Ronald K. Faller, Karla A. Lechtenberg, Robert W. Bielenberg, Scott K. Rosenbaugh, John D. Reid
Phase Ii Development Of A Non-Proprietary, Four-Cable, High Tension Median Barrier, Jennifer D. Schmidt, Dean L. Sicking, Ronald K. Faller, Karla A. Lechtenberg, Robert W. Bielenberg, Scott K. Rosenbaugh, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Phase I Development Of An Aesthetic, Precast Concrete Bridge Rail, Scott Rosenbaugh, Ronald K. Faller, Robert W. Bielenberg, Dean L. Sicking, John D. Reid
Phase I Development Of An Aesthetic, Precast Concrete Bridge Rail, Scott Rosenbaugh, Ronald K. Faller, Robert W. Bielenberg, Dean L. Sicking, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.