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Record W248306545

LTPP Keeps Rolling

2010· article· en· W248306545 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

VenuePublic roads · 2010
Typearticle
Languageen
FieldEngineering
TopicAsphalt Pavement Performance Evaluation
Canadian institutionsnot available
Fundersnot available
KeywordsTransport engineeringEngineeringWork (physics)Plan (archaeology)General partnershipPavement managementData collectionResearch programTask (project management)Civil engineeringConstruction engineeringBusinessSystems engineeringGeography
DOInot available

Abstract

fetched live from OpenAlex

Accurately predicting performance and durability is critical to improving pavement design. Since 1987, the Federal Highway Administration's (FHWA) Long-Term Pavement Performance (LTPP) program, the most comprehensive pavement research program ever undertaken, has addressed the issues of improving pavement performance and optimizing the Nation's investment in the surface transportation system. This article describes the LTPP program, including its history, goals, successes and future plans. FHWA researchers work in partnership with state and provincial departments of transportation (DOTs) to gather and analyze data from 2,500-plus test sections across the United States and southern Canada. The LTPP program relies on pavement test sections constructed on public roads in all major climate zones and soil types. The main task of the LTPP program is to understand the effects of variations in loading, environment, material properties, construction variability, maintenance, and rehabilitation on pavement performance. A plan has been developed for data collection that links user needs to data requirements and provides guidelines to help transportation agencies and researchers measure data accurately and on a regular basis. The end goal is to develop a knowledge base to help advance management and engineering tools to extend pavement life on the interstates and other roadways. The LTPP program collates and releases an updated database annually and distributes analysis findings via publications and reports throughout the year to help manage existing pavements and inspire research into the pavements of tomorrow. FHWA management has announced publicly its commitment to continue monitoring existing test sections and to be custodian of all LTPP data and information until at least 2015.

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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.726
Threshold uncertainty score1.000

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 communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.001

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 head0.011
GPT teacher head0.212
Teacher spread0.201 · 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