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Record W1990102774 · doi:10.1061/jhtrcq.0000232

Run-off-road Accident Prediction Model for Two-lane Highway

2008· article· en· W1990102774 on OpenAlexaff
Wei-sheng Kan, Changcheng Li, Chang-le Pang

Bibliographic record

VenueJournal of Highway and Transportation Research and Development (English Edition) · 2008
Typearticle
Languageen
FieldEngineering
TopicTraffic and Road Safety
Canadian institutionsMinistry of Transportation of Ontario
Fundersnot available
KeywordsNegative binomial distributionPoisson distributionTraffic volumeTruckTransport engineeringPoisson regressionZero-inflated modelTraffic accidentAccident (philosophy)StatisticsOverdispersionEngineeringGeographyMathematicsAutomotive engineering

Abstract

fetched live from OpenAlex

A brief literature review on run-off-road (ROR) accident prediction model was made. Road geometry, traffic volume, accidents, roadside hardware and features data of 31 rural two-lane highways (total 740 kilometers) were collected to develop ROR accident prediction models. Based on four types of statistical distributions, i.e. Poisson, Negative Binomial, Zero-Inflated Poisson and Zero-Inflated Negative Binomial, ROR accident frequency, fatality and injury models were built. Elasticity analysis was made to estimate the effect of influential factors such as roadway geometry and truck traffic on these models.

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 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)0.001
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: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.788
Threshold uncertainty score0.509

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
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 head0.030
GPT teacher head0.264
Teacher spread0.233 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations2
Published2008
Admission routes1
Has abstractyes

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