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Record W7033371427

Putting the Brakes on Crude Oil Train Regulation

2019· article· en· W7033371427 on OpenAlexaboutno aff

Bibliographic record

VenueeYLS (Yale Law School) · 2019
Typearticle
Languageen
FieldHealth Professions
TopicNoise Effects and Management
Canadian institutionsnot available
Fundersnot available
KeywordsAir brakeTrainLegislationBrakeClean Air ActCrude oilFreight trains
DOInot available

Abstract

fetched live from OpenAlex

In 2013, a runaway crude oil train derailed and exploded in the center of Lac-Megantic, Quebec, killing 47 people. Similar derailments of crude oil trains occurred in North Dakota in 2013 and Oregon in 2016. Despite federal legislation demanding improved rail safety, safety experts charge that a recent policy change adopted by the Trump Administration will leave the public exposed to the dangers of rail accidents. The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration (PHMSA) last fall announced that it had rescinded a mandate on installing electronically controlled pneumatic brakes (ECP). After completing a study required by the Fixing America’s Surface Transportation Act (FAST Act) of 2015, PHMSA stated that “the expected costs of requiring ECP brakes would be significantly higher than the expected benefits of the requirement,” although railroads are still free to install ECP brakes should they wish. Recent reporting by the Associated Press that PHMSA’s analysis underestimated the benefits of requiring ECP brakes has reinvigorated the debate over the Trump Administration’s rule rescission. ECP brakes offer many benefits compared to traditional air brakes, according to a 2006 Federal Railroad Administration report. Air brakes require each freight car to brake “individually, at the speed of the air pressure moving from car to car, along trains that are often well over a mile in length.” The ECP brake system, by contrast, allows engineers to apply brakes simultaneously on all train cars, allowing for quicker stops than with air brakes. ECP brakes also provide engineers with better control over their trains and lower risk of derailment or broken couplings between cars, according to the Federal Railroad Administration. Since less time is spent braking, engineers can operate trains at top speeds for longer, increasing fuel efficiency and decreasing emissions. ECP brakes can even self-diagnose for maintenance issues, allowing freight trains to make longer trips without stopping for brake inspections. PHMSA released its analysis of the viability of mandating ECP brakes in 2017, and pointed to the Australian freight rail system as a useful comparison. Australia has widely adopted ECP brake systems on its freight railroads with positive results. A report from the Australian Department of Resources, Energy and Tourism—now part of the Department of Industry, Innovation and Science—notes fuel savings of 4 percent to 11 percent on trains with ECP brakes. PHMSA’s analysis, however, identifies several obstacles to installing these brakes present in the United States, but not in Australia. In addition to lower projected benefits, PHMSA noted that freight cars in the United States are owned by shippers, not by the railroads. Furthermore, North American railroads are already engaged in the costly process of installing positive train control—an automated system for safely controlling train movement—across their systems. The Australian report also highlights the costs of implementing an ECP brake system. Each tank car costs about $5,600 to retrofit, and the cars are out of service during this process. To realize the full benefits of ECP brakes, the approximately 415,000 tank cars in service in the United States would require upgrades, and railroads would have to train their employees to use the new system. Hundreds of freight locomotives would require retrofitting as well. According to PHMSA’s analysis, the costs of installing ECP brakes would outweigh the expected benefits. Over a 20-year period, PHMSA estimates the costs to range from $427.3 million to $554.8 million. PHMSA’s calculations for total benefits, however, range from $257.5 million to $374 million. PHMSA also notes that crude oil movements by rail are difficult to forecast in the long run. North American railroads carried over 380 million barrels worth of crude oil in 2014, but by 2017 the volume was down to about 140 million barrels. PHMSA projects that crude oil traffic will rebound and eventually surpass 2014 levels, but even this optimistic forecast does not provide enough benefit to justify ECP brakes, the agency says. In the wake of the Lac-Megantic incident, PHMSA authorized other specifications for tank cars in addition to ECP brakes, in accordance with the FAST Act. These regulations also established a schedule for retrofitting older cars to make them more fire-resistant. PHMSA now requires thermal protection systems on tank cars, along with metal jackets to protect these systems. PHMSA rules also specify weight limits and thickness of the car bodies. Although mandatory ECP brakes for crude oil trains are off the table for the moment, PHMSA stated that its rescission of the rule “does not affect the ability of a railroad to implement ECP brakes” themselves. Railroads will still have to implement PHMSA’s other measures to improve safety on their trains, and the option of ECP brakes remains available if railroads wish to pursue it.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.015
metaresearch head score (Gemma)0.039
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Commentary · Consensus signal: none
Teacher disagreement score0.197
Threshold uncertainty score0.391

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0150.039
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0020.001
Science and technology studies0.0080.013
Scholarly communication0.0110.007
Open science0.0040.006
Research integrity0.0210.026
Insufficient payload (model declined to judge)0.0130.007

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.025
GPT teacher head0.329
Teacher spread0.304 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreCommentary

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations0
Published2019
Admission routes1
Has abstractyes

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