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Record W4200289054 · doi:10.1111/coep.12562

COVID‐19 lockdown and traffic accidents: Lessons from the pandemic

2021· article· en· W4200289054 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueContemporary Economic Policy · 2021
Typearticle
Languageen
FieldEngineering
TopicTraffic and Road Safety
Canadian institutionsCarleton University
Fundersnot available
KeywordsCoronavirus disease 2019 (COVID-19)Regression discontinuity designPandemic2019-20 coronavirus outbreakSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Poison controlDemographic economicsGeographyDemographyBusinessMedical emergencyMedicineEconomicsStatisticsVirologyMathematicsOutbreakSociology

Abstract

fetched live from OpenAlex

Abstract We use a regression discontinuity design to study the effect of the COVID‐19 lockdown on traffic accidents. Based on administrative data from Louisiana, we find that the lockdown order led to a significant decrease in traffic accidents (−47%), including accidents involving injury (−46%) and ambulance (−41%). We also find evidence of heterogeneous changes in the decline of drivers involved in accidents, with a smaller decline among individuals aged 25 to 64, male, and nonwhite drivers.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.284
Threshold uncertainty score0.678

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.040
GPT teacher head0.279
Teacher spread0.239 · 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