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Relevant bibliographies by topics / Union Pacific Railroad

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Academic literature on the topic 'Union Pacific Railroad'

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Published: 4 June 2021

Last updated: 2 March 2023

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Journal articles on the topic "Union Pacific Railroad"

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Larson, Paul D., and H. Barry Spraggins. "Union Pacific/Southern Pacific merger: impact on shippers." Journal of Transportation Management 10, no. 1 (1998): 45–52. http://dx.doi.org/10.22237/jotm/891389160.

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In the Summer of ‘96, Union Pacific Railroad merged with Southern Pacific to create the largest American railroad. Controversy continues to surround the merger. This paper reports results of a recent merger-impact survey. Survey respondents were rail and intermodal shippers. Among the interesting research findings are the following: (1) while shippers report a negative impact due to less rail competition, trackage rights granted to Burlington Northern/Santa Fe have failed to dampen this impact; (2) railroad service has deteriorated, but freight rates have remained stable; and (3) service problems are more severe for rail, as opposed to TOFC/COFC, shippers.

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Gupta, Uma G., Randy W. Butler, and Thomas D. Milner. "Leading without bleeding: an information technology case study at union pacific railroad." Journal of Transportation Management 11, no. 2 (1999): 44–54. http://dx.doi.org/10.22237/jotm/936144300.

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In the railroad industry, the ability to assess damages to rail units in an accurate and timely manner is critical to the success and profits of a company. Accurate damage assessment of rail units also plays a key role in dispute resolution and negotiation with key vendors and suppliers (my.uprr.com/pub/dam-prev). This paper describes and presents information about Union Pacific Railroads (UPRR) and Science Applications International Corporations (SAIC) highly successful efforts in fully automating the data collection, inspection, assessment and reporting of damage claims to rail equipment. UPRR and SAIC used an innovative and highly creative approach to develop and implement the Automated Gate System (AGS) by integrating a portfolio of leading edge high resolution imaging and optical character recognition technologies. AGS is a unique and revolutionary system in the transportation industry and has yielded significant strategic and long-term benefits to the company. The reengineering efforts that preceded the development of the system have helped the company to sustain its position as a leader in the railroad industry.

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Stover, John F., and Maury Klein. "Union Pacific: Birth of a Railroad, 1862-1893." American Historical Review 94, no. 2 (1989): 526. http://dx.doi.org/10.2307/1866983.

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Salsbury, Stephen, and Maury Klein. "Union Pacific: Birth of a Railroad, 1862-1893." Journal of American History 75, no. 3 (1988): 966. http://dx.doi.org/10.2307/1901646.

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Meyer, Jennifer L., and Paul A. Savory. "Selecting Employees for Random Drug Tests at Union Pacific Railroad." Interfaces 27, no. 5 (1997): 58–67. http://dx.doi.org/10.1287/inte.27.5.58.

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Wipf, Terry J., Michael A. Ritter, and Douglas L. Wood. "Evaluation and Field Load Testing of Timber Railroad Bridge." Transportation Research Record: Journal of the Transportation Research Board 1696, no. 1 (2000): 323–33. http://dx.doi.org/10.3141/1696-34.

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Several spans of a 60-year-old open-deck timber railroad bridge on the Southern Pacific Railroad Line (now the Union Pacific) in Southwest Texas were field tested. The tests were conducted with the sponsorship and cooperation of the Association of American Railroads to determine the vertical live load distribution characteristics of the superstructure. The bridge was originally constructed with Douglas-fir larch solid sawn stringers but was rehabilitated on several occasions to allow comparisons to be made with respect to different rehabilitation options, including the use of a helper stringer and the use of glued laminated timber (glulam) stringers. The test spans measured approximately 4.1 m (13.5 ft) center-to-center of supports and included two closely “packed” chords, each consisting of four timber stringers (one test span included an additional helper stringer added to one chord). One chord was made up of glulam timber and the other was made up of solid sawn timber. The bridge superstructure was generally in satisfactory condition, with some stringer horizontal splitting noted over the bents. The bents were in reasonably good condition, but chord bearing was uneven on bent caps. Static and dynamic deflection load test data were obtained using a special test train. The test results indicate that the glulam chord performed better than the older sawn stringer chord, even when a helper stringer was added. Individual stringers within a chord did not always share the load equally.

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Heier, Jan Richard. "Building the Union Pacific Railroad: a study of mid-nineteenth-century railroad construction accounting and reporting practices." Accounting, Business & Financial History 19, no. 3 (2009): 327–51. http://dx.doi.org/10.1080/09585200903246775.

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Huneke, Bonnie K., W. Ron Gaiser, and Mark Rowe. "Union Pacific Railroad Medical Quality Assurance Process: Innovations in Work Injury Management." Journal of Applied Rehabilitation Counseling 26, no. 4 (1995): 42–45. http://dx.doi.org/10.1891/0047-2220.26.4.42.

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This paper discusses the history and evolution of the Union Pacific Railroad's (UPRR) dynamic medical management process, termed Medical Quality Assurance (MQA). The authors describe the MQA Process and give results showing reductions in doctor shopping, reduction in lost work days, and improved medical cost containment. Enhancements to the program are outlined, including the possibility offorming a contracted medical network based on provider outcome data rather than the traditional monetary negotiations. The process proves that starting with disability management, and evolving to injury management is an effective strategy for improving quality of care for injured workers, while providing medical cost containment.

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Churella, A. "Union Pacific: The Reconfiguration; America's Greatest Railroad from 1969 to the Present." Journal of American History 98, no. 4 (2012): 1214–15. http://dx.doi.org/10.1093/jahist/jar594.

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Narisetty, Amar Kumar, Jean-Philippe P. Richard, David Ramcharan, Deby Murphy, Gayle Minks, and Jim Fuller. "An Optimization Model for Empty Freight Car Assignment at Union Pacific Railroad." Interfaces 38, no. 2 (2008): 89–102. http://dx.doi.org/10.1287/inte.1070.0330.

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Dissertations / Theses on the topic "Union Pacific Railroad"

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Wood, Leland K. "When the Locomotive Puffs: Corporate Public Relations of the First Transcontinental Railroad Builders." Ohio University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1249568716.

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Chiu, Herman B. "When 1,000 words are worth a picture : how newspapers portrayed the Chinese and Irish who built the first transcontinental railroad /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3164495.

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Zankowski, Jennifer Jaye. "Safety at highway-railroad crossings : a case study of the Austin-San Antonio corridor." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-3275.

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For over a decade proposals for connecting the metropolitan areas of Austin and San Antonio, Texas via passenger rail have been studied. In the Texas Department of Transportation’s 2010 Rail Plan several ideas, including high-speed rail, regional Amtrak service, and a new passenger rail service have been proposed as a means to provide an alternate mode of transportation along the I-35 corridor. Union Pacific Railroad currently owns and operations a rail line that connects the Austin and San Antonio metropolitan areas; each of the passenger rail projects proposes sharing this corridor with Union Pacific. A literature review reveals that a key factor in negotiating with a freight railroad for shared use of a corridor is safety. One element of the safety risk analysis is the evaluation of at-grade highway-railroad crossing. This study discusses the Austin-San Antonio corridor, its current mobility challenges and the proposed passenger rail projects. It then discusses rail safety as expressed in the literature and provides background about safety at highway-railroad crossings. Crossing inventory and accident data, as maintained by the Federal Railroad Administration (FRA), is then analyzed using regression modeling in an attempt to better understand the relationship between the physical and operational characteristics of highway-railroad crossings and accidents on corridors shared by freight and passenger rail. It analyzes a five-year accident history (2005 to 2009) from of a sample of shared use highway-rail crossings throughout the US. The findings are then used to analyze the at-grade highway-railroad crossings along the Austin-San Antonio corridor. And finally, the implications of the findings are discussed. The findings of this report recommend that characteristics of the built environment such as land use, number of traffic lanes, and function classification of the roadway should be considered when assessing accident risk at highway-railroad crossings. In addition, this analysis reveals the need for a way to better measure safety risks at private highway-railroad crossings.<br>text

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Books on the topic "Union Pacific Railroad"

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J, Holland Kevin, ed. Union Pacific Railroad. MBI Pub. Company, 2009.

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Durham, Robert K. The Union Pacific Railroad. Robert K. Durham, 1998.

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Klein, Maury. Union Pacific. Doubleday, 1987.

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Klein, Maury. Union Pacific. University of Minnesota Press, 2006.

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Klein, Maury. Union Pacific. Doubleday, 1990.

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Fox, Wesley. Union Pacific Cheyenne west. Fox Publications, 1996.

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Hemphill, Mark W. Union Pacific Salt Lake route. Stoddart, 1995.

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Botkin, William E. Union Pacific 3985. Colorado Railroad Historical Foundation, 1985.

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Newcomen Society of the United States., ed. Union Pacific: Building America. The Newcomen Society of the United States, 2002.

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Davidson, Dick. Union Pacific: Building America. The Newcomen Society of the United States, 2002.

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Book chapters on the topic "Union Pacific Railroad"

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Klein, Maury. "The Next Railroad." In Union Pacific. Oxford University Press, 2011. http://dx.doi.org/10.1093/acprof:osobl/9780195369892.003.0034.

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Walker, David. "Patrons and the Plays of Mormon Culture." In Railroading Religion. University of North Carolina Press, 2019. http://dx.doi.org/10.5149/northcarolina/9781469653204.003.0006.

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This chapter delves into John Codman’s writings about his travel throughout Utah in 1873. Codman’s focus includes the Union Pacific, through which John W. Young managed Corrine’s bathing and boating trade and incorporated the growing network of Mormon leisure industries. Many of John W Young’s projects led Codman to explore the Tabernacle, which informed him about Mormon religious practices and marital systems, and investigate dramatic plays in the Salt Lake Theatre. Codman finishes his assessment on Corinne with a northern tour where he recognizes unity among Corinnethians due to the Indian scare and the anti-Indian program. Overall, Codman’s book, The Mormon Country, publicized Mormonism and played a role as a guided cultural mediator moderating between pro- and anti-Mormon claims, and promised that Utah would remain a special a site of rich cultural encounters, both on and off the railroad tracks.

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Leshy, John D. "New Divestment Policies Sow Seeds of a Backlash." In Our Common Ground. Yale University Press, 2022. http://dx.doi.org/10.12987/yale/9780300235784.003.0009.

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This chapter examines effects of the Civil War on public land policy. The war expanded the authority of the national government and fundamentally changed the relationship between the states and the national government. Furthermore, the departure of southern secessionists from Congress broke a logjam that for more than a decade had stymied significant legislation regarding public lands. On May 20, 1862, President Abraham Lincoln signed into law the Homestead Act; on June 2, a major change in the Preemption Act; on July 1, the Pacific Railroad Act; and on July 2, the so-called Morrill Land-Grant College Act. These laws resulted in privatizing hundreds of millions of acres of public land. They also accelerated westward expansion, laid the basis for admitting more than a dozen new states to the union, and set in motion currents of change that eventually persuaded Congress to alter the primary thrust of the nation's public land policy.

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Conference papers on the topic "Union Pacific Railroad"

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Gularte, Francis B., and Gerry Millar. "Rehabilitation of Union Pacific Railroad Tunnel, Ryndon, Nevada." In Third International Conference on Grouting and Ground Treatment. American Society of Civil Engineers, 2003. http://dx.doi.org/10.1061/40663(2003)48.

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Reinsmith, Alexander, and Bryan W. Schlake. "Standardization of High-Wide Load Measurement Using Laser-Based Technology." In 2015 Joint Rail Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/jrc2015-5682.

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Each year, thousands of open-top loads are shipped across North America over the Class I railroad network. Many of these loads are high-value, high-risk shipments, presenting considerable operational challenges for the carriers due to special handling requirements. Shipments that extend beyond a standard geometric envelope, denoted by various “plates” in the Association of American Railroads (AAR) Open Top Loading Rules (OTLR), are considered to be over dimensional, or High-Wide Loads (HWLs). Historically, railroad mechanical personnel have measured HWLs manually using a tape measure, plumb line, level, and various homemade devices. Measurement methodologies and philosophies can vary widely among mechanical inspectors. As a result, railroads have recently sought out new technologies to standardize the measurement process, resulting in greater safety, efficiency, accuracy and documentation. Taking the lead in this effort, Norfolk Southern Corp. (NS), BNSF Railway and Union Pacific Railroad have all worked closely with InfraMeasure, Inc. in their development of a patent pending, portable, laser-based measurement system known as SafeLoad®. This paper documents the development of this technology, including the completion of successful repeatability tests and the training of dozens of car inspectors from multiple railroads on the use of the system. In 2014, laser-based measurement technology was deployed across the entire NS network and was also used extensively by Union Pacific Railroad. In addition, BNSF and other Class I railroads began testing with the thought of implementing in the near future. Repeatability tests performed among newly trained employees indicated high levels of precision, with field measurements deviating by no more than 0.25 inches among various inspectors. Additional field testing confirmed a reduction in labor time and personnel required to measure HWLs by as much as one half while significantly improving measurement accuracy and reducing fall related risks by eliminating the need to climb on HWLs. In addition to these immediate benefits, the early stages of implementation have highlighted a potential long-term need for standardized measurement training within the industry. Anticipating the growing knowledge gap left by attrition, railroad mechanical departments are placing greater emphasis on training new car inspectors to assume the safety critical task of HWL measurement. This paper explores the current state of HWL measurement in the US railroad industry and identifies potential solutions, using technology, to further standardize both the practice of measuring HWLs and the training of new inspectors.

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Snyder, Todd, D. H. Stone, and Joseph Kristan. "Wheel Flat and Out-of-Round Formation and Growth." In IEEE/ASME 2003 Joint Rail Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/rtd2003-1659.

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Wheel flats and out-of rounds (OORs) are defects that can cause high impacts that impart damage to track and equipment. This paper presents an analysis of data gathered from wheel impact load detectors on the Union Pacific Railroad and data gathered from the Transportation Technology Center, Inc. (TTCI) Wheel Defect research Consortium.

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Toth, David G., Brian M. Hupp, Todd W. Snyder, and Selva Karunakaran. "Validation Testing of Bearing Temperature Differentials and Identification of Root Causes on Selected Union Pacific Railroad Hot and Warm Trend Set-Outs." In 2009 Joint Rail Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/jrc2009-63029.

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This paper is the summary report on work started in 2007, and initially introduced in a presentation at the joint ASME – TTCI Bearing Symposium in Chicago in September of 2007 [1]. The identification of the root cause(s) for “warm bearing trend” temperatures has also been the subject of other technical papers [2, 3]. Traditional railroad journal bearing hot box detector (HBD) systems monitor journal bearing temperatures, and typically provide an alarm based on a measured in-service bearing absolute temperature, or against a programmed “delta” over the ambient temperature level. More recently, bearing operating temperatures have been statistically analyzed for temperature “trending”, and identification of temperature “outliers”, or bearings which display a higher temperature relative to the majority of bearings in the same train. AAR rules now facilitate the removal from service of bearings which either: 1) exceed traditionally defined limits, or 2) meet the statistical criteria set forth by these newly established AAR industry rules, to ideally prevent or eliminate “burn off journals” and potential derailments. This study is focused on testing of railroad journal bearings that were removed from service for “Why Made Code 50” (an “overheated” journal bearing), and exhibited no visually obvious external signs of distress. Dynamic testing and a corresponding tear down investigation to determine the root cause(s) for the elevated temperature was performed for the trend and mate bearings. This dynamic rig testing and corresponding investigation(s) have resulted in the determination of a significant and potential root cause for warm trend bearings.

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Phillips, Robert, Francesco Lanza di Scalea, Claudio Nucera, Mahmood Fateh, and John Choros. "Field Testing of Prototype Systems for the Non-Destructive Measurement of the Neutral Temperature of Railroad Tracks." In 2014 Joint Rail Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/jrc2014-3735.

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In both high speed and freight rail systems, the modern construction method is Continuous Welded Rail (CWR). The purpose of the CWR method is to eliminate joints in order to reduce the maintenance costs for both the rails and the rolling stock. However, the elimination of the joints increases the risk of rail breakage in cold weather and buckling in hot weather. In order to predict the temperature at which the rail will break or buckle, it is critical to have knowledge of the temperature at which the rail is stress free, namely the rail Neutral Temperature. The University of California at San Diego (UCSD) has developed an innovative technique based on non-linear ultrasonic guided waves, under Federal Railroad Administration (FRA) research and development grants for the non-destructive measurement of the Neutral Temperature of CWR. Through the licensing of this technology from UCSD and under the sponsorship of the FRA Office of Research and Development, a field deployable prototype system has been developed and recently field-tested at cooperating railroad properties. Three prototype systems have been deployed to the Burlington Northern Santa Fe (BNSF), AMTRAK, and the Union Pacific (UP) railroads for field testing and related data acquisition for a comprehensive evaluation, with respect to both performance and economy of operation. This paper summarizes the results of these field tests, as compared to well-established techniques such as VERSE and strain gages.

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Tyrell, David, David Jeong, Karina Jacobsen, and Eloy Martinez. "Improved Tank Car Safety Research." In ASME 2007 Rail Transportation Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/rtdf2007-46013.

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Three recent accidents involving the release of hazardous material have focused attention on the structural integrity of railroad tank cars: (1) Minot, ND, on January 18, 2002; (2) Macdona, TX, on June 28, 2004; and (3) Graniteville, SC, on January 6, 2005. Each of these accidents resulted in fatalities. Research is being conducted to develop strategies for improving railroad tank cars so they can maintain tank integrity in severe accidents. A collaborative effort called the Next Generation Rail Tank Car (NGRTC) Project intends to use these research results to help develop improved tank car designs. Dow Chemical Company, Union Pacific Railroad, and Union Tank Car Company are the industry sponsors of the NGRTC Project. The Federal Railroad Administration (FRA) and Transport Canada participate in the NGRTC project through Memoranda of Cooperation. FRA and the Pipeline and Hazardous Materials Safety Administration intend to use these research results to support rulemaking. The approach taken in performing this research is to define the collision conditions of concern, to evaluate the behavior of current design equipment in these scenarios, and to develop alternative strategies for increasing the maximum impact speed for which tank integrity is maintained. The accident scenarios have been developed from a review of accidents and are intended to bound the range of main-line accidents that can lead to a release of hazardous material from a tank car. The accident scenarios and collision modes have been used to define car-to-car impact scenarios. These car-to-car impact scenarios define the conditions under which the commodity must be contained. The impact scenarios are being used to evaluate the integrity of current design and improved design tank cars. Full-scale impact tests are also being conducted, to help validate modeling of the baseline equipment. The models have been refined based on the test results. The models are now being applied to develop the improved equipment designs. This paper describes the overall research framework and provides an overview of the research done to date, as well as the planned efforts.

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Harrison, Harold D., Li R. Cheng, and William GeMeiner. "Tracking the Performance of Heavy Axle Load Vehicles in Revenue Service." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15730.

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As market forces drive up the gross weight on rail, railroads continue moving toward increased usage of heavy axle load (HAL) equipment, namely 286,000 lb and 315,000 lb GWR vehicles that provide more competitive and efficient transportation. According to the AAR's Universal Machine Language Equipment Register (UMLER) database, since 1995, at least 70% of vehicles built each year were HAL vehicles. 2005 had 49,923 more HAL vehicles running on the North America railroad system than the previous year. This practice can result in significant overall savings in operating costs. However, HAL equipment can also accelerate wear and damage to the railroad infrastructure and have a greater potential for truck warping and vehicle dynamics problems. Thus, keeping rolling stock and track safe while ramping up the usage of HAL equipment presents a significant challenge. Wheel Impact Load Detector (WILD) SuperSites, developed by Salient Systems Inc. (SSI), provide real time monitoring and alarming on excessive axle loads and vehicle dynamics. SuperSites are important tools in the scientific study of HAL vehicles and the monitoring of heavy haul operations. This paper provides a snapshot of results of studies conducted on Union Pacific (UP) HAL routes and demonstrates how HAL loads affect the rolling stock, the track, and the wheel/rail interaction. The heavier the load, the higher the impact of the defective wheels to the track; therefore, heavily loaded vehicle routes (such as the coal route from the Powder River Basin to Kansas City and the primary intermodal route from Los Angeles to El Paso) need to be monitored more proactively to avoid track structural damage.

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Placencia, Greg, Najmedin Meshkati, James Moore, and Yalda Khashe. "Technology and High Reliability Organizations in Railroad Operations Safety: A Case Study of Metrolink / SCRRA and Positive Train Control (PTC) Implementation." In 2014 Joint Rail Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/jrc2014-3823.

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High-risk organizations operate technologies such as in rail transportation, aviation, or nuclear power, where failure/breakdown can initiate low-probability, high consequence events. The concept of High-Reliability Organizations (HROs) was developed to avoid or mitigate such events through proper management despite the inherent risk. The September 12, 2008, Chatsworth accident is an example of such events that HROs are designed to prevent. In that case a Metrolink commuter train and Union Pacific freight train collided when the Metrolink engineer failed to recognize and react to a stop signal as a result of texting, causing 25 deaths and 135 injuries. This incident directly resulted in the Railroad Safety Improvement Act of 2008, which mandated Positive Train Control (PTC) implementation on all Class 1 rail carriers, as well as intercity / commuter rail passenger transporters. Over the past 2 years, the USC team has observed PTC implementation at the Southern California Regional Rail Authority (SCRRA) / Metrolink. This paper examines how PTC can be an integral part in developing and promoting HRO principles within the rail industry based on those observations.

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Lu, Sheng, Cory Hogan, Brock Minert, et al. "Exception Criteria in Vertical Track Deflection and Modulus." In ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/jrc/ice2007-40100.

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The network constraints of freight railroad traffic are moving the industry to heavier tonnage trains, higher axle loads and increased velocity. The dynamics of heavier axle loads and speed produce high stresses in the track infrastructure. Track integrity is strongly related to the vertical track modulus — the relationship between the rail deflection and the vertical applied load. Both low track modulus and large variations in track modulus increase dynamic loading leading to increased maintenance requirements and reduced structural integrity. Currently, there is no widely accepted method to measure vertical track deflection and modulus from a rail car traveling at speed and no criteria exist to relate variations in modulus to the track integrity. This paper presents a method to measure vertical track deflection from a moving rail car. These deflection measurements can then be used to estimate track modulus. Exception criteria are then proposed that can be used to evaluate track quality and prioritize maintenance. Revenue service test results are presented for approximately 350 miles of the Union Pacific Railroad’s heavy-haul axle freight line on the South Morrill and Powder River sub-divisions. Finally, the method is compared to other measurements of ride quality including Vehicle Track Interaction (VTI) measurements on the same sections of track.

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Hellman, Adrian, and Tashi Ngamdung. "Illinois High-Speed Rail Four-Quadrant Gate Reliability Assessment." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36120.

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The United States Department of Transportation’s (USDOT) Research and Innovative Technology Administration’s John A. Volpe National Transportation Systems Center (Volpe Center), under the direction of the USDOT Federal Railroad Administration (FRA) Office of Research and Development (ORD), conducted a reliability analysis of the four-quadrant gate/vehicle detection equipment installed on the potential high-speed rail (HSR) corridor between Chicago and St Louis. A total of 69 highway-rail grade crossings on a 121-mile (195 km) segment of the 280-mile corridor were equipped with four-quadrant gates and inductive loop vehicle detection technology. This segment, between Mazonia and Springfield Illinois, may eventually carry passenger trains at speeds up to 110 mph (177 km/h), including at many of the highway-rail grade crossings. The analysis was based on maintenance records obtained from the Union Pacific Railroad (UPRR), the owner and operator of the rail line. The results were used to assess the impact of the equipment reliability on the proposed HSR timetable. The Volpe Center study showed that the total average delay to the five scheduled daily high-speed passenger roundtrips was an estimated 10.5 minutes, or approximately one minute per train. Overall, extensive analysis of the trouble ticket data showed that the four-quadrant gate and vehicle detection equipment had a minimal direct impact on the frequency and duration of grade crossing malfunctions.

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Reports on the topic "Union Pacific Railroad"

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Chart showing identification of oil shale and trona beds and their geophysical log responses in the Union Pacific Railroad Company El Paso Corehole no. 44-3, Eocene Green River Formation, Southwest Wyoming. US Geological Survey, 1991. http://dx.doi.org/10.3133/mf2188.

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