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Record W639689800

Classification Algorithm for Characterizing Long Multiple Trailer Truck Movements

2007· article· en· W639689800 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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueTransportation Research Board 86th Annual MeetingTransportation Research Board · 2007
Typearticle
Languageen
FieldEngineering
TopicTransport Systems and Technology
Canadian institutionsnot available
Fundersnot available
KeywordsTruckTrailerTransport engineeringService (business)Level of serviceComputer scienceOperations researchEngineeringBusinessAutomotive engineering
DOInot available

Abstract

fetched live from OpenAlex

Long multiple trailer trucks consist of a tractor and two or three semitrailers or trailers that exceed the maximum basic length limitation of 25 meters (82 feet) specified by provincial truck size regulatory schemes in Canada. Over time, the extent and nature of long truck operations have changed due to modifications in the region’s highway network, its regulatory environment, and the growing demand to improve regional economic competitiveness. Highway agencies face increasing pressures to permit long truck operations, but currently have limited information to represent or characterize these movements. Understanding the current extent and nature of long truck operations in the Canadian Prairie Region freight transportation system is critical for road design and maintenance, intermodal freight planning, safety analysis, environmental assessment, financing highway infrastructure, economic evaluation, and truck regulation. An algorithm to isolate and classify long multiple trailer trucks is developed. The algorithm utilizes weigh-in-motion data obtained from stations situated on the region’s long truck network. The resulting long truck dataset provides the basis for characterizing the volume and weight of long multiple trailer truck movements. The research outcomes service the demand for an understanding of the volume and weight of long truck activity, and provide an analytical basis for forecasting changes in their activity.

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)0.008
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.446
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0080.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0020.002
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0010.002
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 head0.058
GPT teacher head0.348
Teacher spread0.290 · 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